Simple app with AppBar raises type error when run with non-nullable

Steps to Reproduce

Create a new Flutter app.
Use the file below as main.dart
Run the app with flutter run -d chrome

The app runs perfectly.

In pubspec.yaml, update the SDK to sdk: ">=2.10.0-0.0.dev <3.0.0"
Run the app again, with flutter run -d chrome --enable-experiment=non-nullable

The app runs, with an error shown in place of the app bar, and error messages in the console.

main.dart
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      home: CustomScaffold(),
    );
  }
}

class CustomScaffold extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        elevation: 1,
        title: Text('AppBar title'),
      ),
    );
  }
}

Expected results:
App should run without errors.
Actual results:
Raises the following error:
══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following TypeErrorImpl was thrown building AppBar(dirty, dependencies:
[_LocalizationsScope-[GlobalKey#8fc2c], _InheritedTheme, _ModalScopeStatus], state:
_AppBarState#51322):
Expected a value of type 'ModalRoute<Object>?', but got one of type 'MaterialPageRoute<dynamic>'

The relevant error-causing widget was:
  AppBar file:///Users/tianguang/Documents/dev/customtest20201008/lib/main.dart:21:15

When the exception was thrown, this was the stack:
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 216:49      throw_
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 64:3        castError
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 442:10  cast
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/types.dart 392:9        as
packages/flutter/src/widgets/routes.dart 886:26                                   of
packages/flutter/src/material/app_bar.dart 505:57                                 build
packages/flutter/src/widgets/framework.dart 4792:27                               build
packages/flutter/src/widgets/framework.dart 4675:15                               performRebuild
packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
packages/flutter/src/widgets/framework.dart 4649:5                                mount
packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
packages/flutter/src/widgets/framework.dart 4649:5                                mount
packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
packages/flutter/src/widgets/framework.dart 6164:14                               mount
packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
(Many more similar lines omitted.)

Logs

Log from flutter run -d chrome --enable-experiment=non-nullable --verbose:
[ +159 ms] executing: [/Users/tianguang/Documents/f/flutter/] git -c log.showSignature=false log -n 1
--pretty=format:%H
[  +62 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[        ] d2858f00dd2f305ad59dde8acd3f347105f7f8fa
[        ] executing: [/Users/tianguang/Documents/f/flutter/] git tag --points-at HEAD
[  +85 ms] Exit code 0 from: git tag --points-at HEAD
[   +1 ms] executing: [/Users/tianguang/Documents/f/flutter/] git describe --match *.*.* --first-parent
--long --tags
[  +86 ms] Exit code 0 from: git describe --match *.*.* --first-parent --long --tags
[        ] 1.23.0-7.0.pre-222-gd2858f00dd
[  +10 ms] executing: [/Users/tianguang/Documents/f/flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[   +6 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[        ] pennzht/master
[        ] executing: [/Users/tianguang/Documents/f/flutter/] git ls-remote --get-url pennzht
[   +6 ms] Exit code 0 from: git ls-remote --get-url pennzht
[        ] git@github.com:pennzht/flutter.git
[  +54 ms] executing: [/Users/tianguang/Documents/f/flutter/] git rev-parse --abbrev-ref HEAD
[   +6 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[        ] master
[   +6 ms] executing: sw_vers -productName
[  +16 ms] Exit code 0 from: sw_vers -productName
[        ] Mac OS X
[        ] executing: sw_vers -productVersion
[  +16 ms] Exit code 0 from: sw_vers -productVersion
[        ] 10.15.6
[        ] executing: sw_vers -buildVersion
[  +15 ms] Exit code 0 from: sw_vers -buildVersion
[        ] 19G2021
[        ] executing: uname -m
[   +5 ms] Exit code 0 from: uname -m
[        ] x86_64
[  +50 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[  +10 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[  +60 ms] executing: /Users/tianguang/Library/Android/sdk/platform-tools/adb devices -l
[   +8 ms] executing: /usr/bin/xcode-select --print-path
[   +8 ms] Exit code 0 from: /usr/bin/xcode-select --print-path
[        ] /Applications/Xcode 11.2.1.app/Contents/Developer
[   +1 ms] executing: /usr/bin/xcodebuild -version
[ +165 ms] Exit code 0 from: /usr/bin/xcodebuild -version
[        ] Xcode 11.2.1
           Build version 11B500
[   +2 ms] executing: xcrun --find xcdevice
[   +8 ms] Exit code 0 from: xcrun --find xcdevice
[        ] /Applications/Xcode 11.2.1.app/Contents/Developer/usr/bin/xcdevice
[        ] executing: xcrun xcdevice list --timeout 2
[   +4 ms] /usr/bin/xcrun simctl list --json devices
[        ] executing: /usr/bin/xcrun simctl list --json devices
[  +13 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[   +2 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[  +82 ms] executing: /Users/tianguang/Library/Android/sdk/platform-tools/adb devices -l
[        ] executing: xcrun xcdevice list --timeout 2
[   +1 ms] /usr/bin/xcrun simctl list --json devices
[        ] executing: /usr/bin/xcrun simctl list --json devices
[ +237 ms] Generating
/Users/tianguang/Documents/dev/customtest20201008/android/app/src/main/java/io/flutter/plugins/GeneratedPlugi
nRegistrant.java
[ +103 ms] List of devices attached
[   +4 ms] List of devices attached
[ +123 ms] Launching lib/main.dart on Chrome in debug mode...
[  +18 ms] {
             "devices" : {
               "com.apple.CoreSimulator.SimRuntime.watchOS-5-3" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 2 - 38mm",
                   "udid" : "E590FADD-6992-4C94-A7D3-A12DD3B48F8D",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 2 - 42mm",
                   "udid" : "D98DB77F-7A5E-4AF9-A37A-8B5F9C177DD5",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 3 - 38mm",
                   "udid" : "FA5A4166-40C9-46C5-BB69-093D8E160425",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 3 - 42mm",
                   "udid" : "8CAE50C5-507D-4BCC-975D-AC06496CDA23",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 4 - 40mm",
                   "udid" : "1B4587F8-D3A0-4D5F-8ACA-FCFBA254253F",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 4 - 44mm",
                   "udid" : "80C7085F-4F06-4BF8-B455-BE908F605505",
                   "availabilityError" : "runtime profile not found"
                 }
               ],
               "com.apple.CoreSimulator.SimRuntime.iOS-12-4" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 5s",
                   "udid" : "DC68A9C7-5EEB-4000-8EB3-1DE17A89AF7C",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 6 Plus",
                   "udid" : "10D3C150-FD95-4737-8679-0064B998CCD5",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 6",
                   "udid" : "879FDDB7-6466-4E19-8722-9785F6CC41BE",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 6s",
                   "udid" : "91B56A92-4025-4ABA-8F0E-D94B5AE9A8DD",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 6s Plus",
                   "udid" : "25ED809F-186B-43A3-88C7-AF4FAF0787F1",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone SE",
                   "udid" : "9EFE9E66-29CC-451A-8124-42BDF0C295B2",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 7",
                   "udid" : "2516C74F-7DCE-4A5F-9FBA-9AEAF5071059",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 7 Plus",
                   "udid" : "CC7C7A2F-3FFA-44A4-9789-033B09DDB88A",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 8",
                   "udid" : "47A4B6E4-BE63-4785-B271-1E8C5766546E",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 8 Plus",
                   "udid" : "B4825DA7-E0F9-4A45-9B17-BEADB7529F7E",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone X",
                   "udid" : "DF53AEA4-69E4-46EF-BC38-A400D273A615",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone Xs",
                   "udid" : "4AA0B617-772E-445F-807E-6F1E69CFCBB2",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone Xs Max",
                   "udid" : "4A0B189F-83A6-493D-A3C8-752607FE8A12",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone Xʀ",
                   "udid" : "B6C6C8B6-7527-452B-9DF1-370871869FB5",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Air",
                   "udid" : "B382B551-C5C1-427D-8E8D-EC9946042D6D",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Air 2",
                   "udid" : "87132A98-9F77-4FA9-B270-269D97FCEFA5",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (9.7-inch)",
                   "udid" : "6ADE6E07-B823-4076-B64C-689367D7C093",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (12.9-inch)",
                   "udid" : "D32A8F12-B36C-4995-B9BE-AA7499BD055D",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad (5th generation)",
                   "udid" : "26595686-56FA-44EE-8815-287A0971769A",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (12.9-inch) (2nd generation)",
                   "udid" : "329D8A19-7A70-44AA-B1B2-A820AC1ED932",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (10.5-inch)",
                   "udid" : "1E370D74-AD78-422D-B76E-B2A43AA7E15C",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad (6th generation)",
                   "udid" : "7A9D9235-06F7-4A82-8B23-FBD204E19476",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (11-inch)",
                   "udid" : "B6F61808-6890-45E6-BDBA-4464EC619675",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (12.9-inch) (3rd generation)",
                   "udid" : "C3C3E62D-3D22-4550-9F9A-48F5ADCEE574",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Air (3rd generation)",
                   "udid" : "D5C0C022-A1E7-4637-82D1-91EC7E649F0B",
                   "availabilityError" : "runtime profile not found"
                 }
               ],
               "com.apple.CoreSimulator.SimRuntime.tvOS-13-2" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple TV",
                   "udid" : "843C3929-6F52-4B77-8474-86EEE3473952"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple TV 4K",
                   "udid" : "EAB9131F-90AD-465D-97F2-4D792EC268C2"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple TV 4K (at 1080p)",
                   "udid" : "0E697C60-141D-48B2-80AD-8F33DD7DA939"
                 }
               ],
               "com.apple.CoreSimulator.SimRuntime.watchOS-6-1" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple Watch Series 4 - 40mm",
                   "udid" : "9BF4C8C0-C2F6-419A-B7BB-3EEFD32E61DB"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple Watch Series 4 - 44mm",
                   "udid" : "684DE048-6A55-4B60-890C-D3F1D2870909"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple Watch Series 5 - 40mm",
                   "udid" : "25B85DF8-29BF-4E76-9545-52DE75DC346E"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple Watch Series 5 - 44mm",
                   "udid" : "E78F4E25-71C3-48F1-ABF0-C73E3C59F585"
                 }
               ],
               "com.apple.CoreSimulator.SimRuntime.iOS-13-2" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPhone 8",
                   "udid" : "E46CD166-BF9D-45B7-BF74-A7C9A94D27E1"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPhone 8 Plus",
                   "udid" : "33CDB77E-191A-4396-8B73-AF163BD271BD"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPhone 11",
                   "udid" : "A7703B62-DEDE-4CD5-AC84-0F90DD436A4E"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPhone 11 Pro",
                   "udid" : "1903FB38-F17A-4EB3-97F6-CBEBFEBE1706"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPhone 11 Pro Max",
                   "udid" : "E48C78F9-97E8-4D4C-BA11-5783DB1243DA"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPad Pro (9.7-inch)",
                   "udid" : "66B69D45-91BC-49B1-848E-6369A3F19259"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPad (7th generation)",
                   "udid" : "EC3FBBDE-74B2-48A1-8EEB-AE8333C4A2E8"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPad Pro (11-inch)",
                   "udid" : "A488B3F7-B64A-45BE-AC41-51A7B1CFEE3D"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPad Pro (12.9-inch) (3rd generation)",
                   "udid" : "DB6D9BDE-843E-4449-8CBA-327423C5FC9D"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPad Air (3rd generation)",
                   "udid" : "F00FA0CE-77D3-40D6-9701-D8A418BF51A9"
                 }
               ],
               "com.apple.CoreSimulator.SimRuntime.tvOS-12-4" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple TV",
                   "udid" : "64C723AF-F249-42AC-9543-729A99A4B379",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple TV 4K",
                   "udid" : "1D3E1CBD-06C9-4803-8C0A-6B9D2AC11C05",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple TV 4K (at 1080p)",
                   "udid" : "6ABDF313-E90B-4DC6-8A81-9CEE03C66775",
                   "availabilityError" : "runtime profile not found"
                 }
               ]
             }
           }
[  +12 ms] {
             "devices" : {
               "com.apple.CoreSimulator.SimRuntime.watchOS-5-3" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 2 - 38mm",
                   "udid" : "E590FADD-6992-4C94-A7D3-A12DD3B48F8D",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 2 - 42mm",
                   "udid" : "D98DB77F-7A5E-4AF9-A37A-8B5F9C177DD5",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 3 - 38mm",
                   "udid" : "FA5A4166-40C9-46C5-BB69-093D8E160425",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 3 - 42mm",
                   "udid" : "8CAE50C5-507D-4BCC-975D-AC06496CDA23",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 4 - 40mm",
                   "udid" : "1B4587F8-D3A0-4D5F-8ACA-FCFBA254253F",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple Watch Series 4 - 44mm",
                   "udid" : "80C7085F-4F06-4BF8-B455-BE908F605505",
                   "availabilityError" : "runtime profile not found"
                 }
               ],
               "com.apple.CoreSimulator.SimRuntime.iOS-12-4" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 5s",
                   "udid" : "DC68A9C7-5EEB-4000-8EB3-1DE17A89AF7C",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 6 Plus",
                   "udid" : "10D3C150-FD95-4737-8679-0064B998CCD5",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 6",
                   "udid" : "879FDDB7-6466-4E19-8722-9785F6CC41BE",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 6s",
                   "udid" : "91B56A92-4025-4ABA-8F0E-D94B5AE9A8DD",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 6s Plus",
                   "udid" : "25ED809F-186B-43A3-88C7-AF4FAF0787F1",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone SE",
                   "udid" : "9EFE9E66-29CC-451A-8124-42BDF0C295B2",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 7",
                   "udid" : "2516C74F-7DCE-4A5F-9FBA-9AEAF5071059",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 7 Plus",
                   "udid" : "CC7C7A2F-3FFA-44A4-9789-033B09DDB88A",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 8",
                   "udid" : "47A4B6E4-BE63-4785-B271-1E8C5766546E",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone 8 Plus",
                   "udid" : "B4825DA7-E0F9-4A45-9B17-BEADB7529F7E",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone X",
                   "udid" : "DF53AEA4-69E4-46EF-BC38-A400D273A615",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone Xs",
                   "udid" : "4AA0B617-772E-445F-807E-6F1E69CFCBB2",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone Xs Max",
                   "udid" : "4A0B189F-83A6-493D-A3C8-752607FE8A12",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPhone Xʀ",
                   "udid" : "B6C6C8B6-7527-452B-9DF1-370871869FB5",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Air",
                   "udid" : "B382B551-C5C1-427D-8E8D-EC9946042D6D",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Air 2",
                   "udid" : "87132A98-9F77-4FA9-B270-269D97FCEFA5",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (9.7-inch)",
                   "udid" : "6ADE6E07-B823-4076-B64C-689367D7C093",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (12.9-inch)",
                   "udid" : "D32A8F12-B36C-4995-B9BE-AA7499BD055D",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad (5th generation)",
                   "udid" : "26595686-56FA-44EE-8815-287A0971769A",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (12.9-inch) (2nd generation)",
                   "udid" : "329D8A19-7A70-44AA-B1B2-A820AC1ED932",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (10.5-inch)",
                   "udid" : "1E370D74-AD78-422D-B76E-B2A43AA7E15C",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad (6th generation)",
                   "udid" : "7A9D9235-06F7-4A82-8B23-FBD204E19476",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (11-inch)",
                   "udid" : "B6F61808-6890-45E6-BDBA-4464EC619675",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Pro (12.9-inch) (3rd generation)",
                   "udid" : "C3C3E62D-3D22-4550-9F9A-48F5ADCEE574",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "iPad Air (3rd generation)",
                   "udid" : "D5C0C022-A1E7-4637-82D1-91EC7E649F0B",
                   "availabilityError" : "runtime profile not found"
                 }
               ],
               "com.apple.CoreSimulator.SimRuntime.tvOS-13-2" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple TV",
                   "udid" : "843C3929-6F52-4B77-8474-86EEE3473952"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple TV 4K",
                   "udid" : "EAB9131F-90AD-465D-97F2-4D792EC268C2"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple TV 4K (at 1080p)",
                   "udid" : "0E697C60-141D-48B2-80AD-8F33DD7DA939"
                 }
               ],
               "com.apple.CoreSimulator.SimRuntime.watchOS-6-1" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple Watch Series 4 - 40mm",
                   "udid" : "9BF4C8C0-C2F6-419A-B7BB-3EEFD32E61DB"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple Watch Series 4 - 44mm",
                   "udid" : "684DE048-6A55-4B60-890C-D3F1D2870909"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple Watch Series 5 - 40mm",
                   "udid" : "25B85DF8-29BF-4E76-9545-52DE75DC346E"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "Apple Watch Series 5 - 44mm",
                   "udid" : "E78F4E25-71C3-48F1-ABF0-C73E3C59F585"
                 }
               ],
               "com.apple.CoreSimulator.SimRuntime.iOS-13-2" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPhone 8",
                   "udid" : "E46CD166-BF9D-45B7-BF74-A7C9A94D27E1"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPhone 8 Plus",
                   "udid" : "33CDB77E-191A-4396-8B73-AF163BD271BD"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPhone 11",
                   "udid" : "A7703B62-DEDE-4CD5-AC84-0F90DD436A4E"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPhone 11 Pro",
                   "udid" : "1903FB38-F17A-4EB3-97F6-CBEBFEBE1706"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPhone 11 Pro Max",
                   "udid" : "E48C78F9-97E8-4D4C-BA11-5783DB1243DA"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPad Pro (9.7-inch)",
                   "udid" : "66B69D45-91BC-49B1-848E-6369A3F19259"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPad (7th generation)",
                   "udid" : "EC3FBBDE-74B2-48A1-8EEB-AE8333C4A2E8"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPad Pro (11-inch)",
                   "udid" : "A488B3F7-B64A-45BE-AC41-51A7B1CFEE3D"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPad Pro (12.9-inch) (3rd generation)",
                   "udid" : "DB6D9BDE-843E-4449-8CBA-327423C5FC9D"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : true,
                   "name" : "iPad Air (3rd generation)",
                   "udid" : "F00FA0CE-77D3-40D6-9701-D8A418BF51A9"
                 }
               ],
               "com.apple.CoreSimulator.SimRuntime.tvOS-12-4" : [
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple TV",
                   "udid" : "64C723AF-F249-42AC-9543-729A99A4B379",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple TV 4K",
                   "udid" : "1D3E1CBD-06C9-4803-8C0A-6B9D2AC11C05",
                   "availabilityError" : "runtime profile not found"
                 },
                 {
                   "state" : "Shutdown",
                   "isAvailable" : false,
                   "name" : "Apple TV 4K (at 1080p)",
                   "udid" : "6ABDF313-E90B-4DC6-8A81-9CEE03C66775",
                   "availabilityError" : "runtime profile not found"
                 }
               ]
             }
           }
[ +138 ms] Updating assets
[  +99 ms] Syncing files to device Chrome...
[  +45 ms] Generating
/Users/tianguang/Documents/dev/customtest20201008/android/app/src/main/java/io/flutter/plugins/GeneratedPlugi
nRegistrant.java
[  +50 ms] <- reset
[   +8 ms] /Users/tianguang/Documents/f/flutter/bin/cache/dart-sdk/bin/dart --disable-dart-dev
/Users/tianguang/Documents/f/flutter/bin/cache/artifacts/engine/darwin-x64/frontend_server.dart.snapshot
--sdk-root /Users/tianguang/Documents/f/flutter/bin/cache/flutter_web_sdk/ --incremental --target=dartdevc
--debugger-module-names --experimental-emit-debug-metadata -Ddart.developer.causal_async_stacks=true
--output-dill
/var/folders/3l/899347gx4jv19gms0t3d9bf400nvjn/T/flutter_tools.vbxDwS/flutter_tool.AwmgE2/app.dill
--libraries-spec file:///Users/tianguang/Documents/f/flutter/bin/cache/flutter_web_sdk/libraries.json
--packages .packages -Ddart.vm.profile=false -Ddart.vm.product=false
--bytecode-options=source-positions,local-var-info,debugger-stops,instance-field-initializers,keep-unreachabl
e-code,avoid-closure-call-instructions --enable-asserts --track-widget-creation --filesystem-root
/var/folders/3l/899347gx4jv19gms0t3d9bf400nvjn/T/flutter_tools.vbxDwS/flutter_tools.hfvXTW
--filesystem-scheme org-dartlang-app --initialize-from-dill
build/825b8f791aa86c5057fff6f064542c54.cache.dill.track.dill --platform
file:///Users/tianguang/Documents/f/flutter/bin/cache/flutter_web_sdk/kernel/flutter_ddc_sdk_sound.dill
--enable-experiment=non-nullable --sound-null-safety
[  +15 ms] <- compile org-dartlang-app:/web_entrypoint.dart
[+2632 ms] [
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "6.1 (17S83)",
                        "available" : true,
                        "platform" : "com.apple.platform.watchsimulator",
                        "modelCode" : "Watch4,3",
                        "identifier" : "9BF4C8C0-C2F6-419A-B7BB-3EEFD32E61DB",
                        "architecture" : "i386",
                        "modelName" : "Apple Watch Series 4 - 40mm",
                        "name" : "Apple Watch Series 4 - 40mm"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2 (17K90)",
                        "available" : true,
                        "platform" : "com.apple.platform.appletvsimulator",
                        "modelCode" : "AppleTV5,3",
                        "identifier" : "843C3929-6F52-4B77-8474-86EEE3473952",
                        "architecture" : "x86_64",
                        "modelName" : "Apple TV",
                        "name" : "Apple TV"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2.2 (17B102)",
                        "available" : true,
                        "platform" : "com.apple.platform.iphonesimulator",
                        "modelCode" : "iPhone10,4",
                        "identifier" : "E46CD166-BF9D-45B7-BF74-A7C9A94D27E1",
                        "architecture" : "x86_64",
                        "modelName" : "iPhone 8",
                        "name" : "iPhone 8"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "6.1 (17S83)",
                        "available" : true,
                        "platform" : "com.apple.platform.watchsimulator",
                        "modelCode" : "Watch4,4",
                        "identifier" : "684DE048-6A55-4B60-890C-D3F1D2870909",
                        "architecture" : "i386",
                        "modelName" : "Apple Watch Series 4 - 44mm",
                        "name" : "Apple Watch Series 4 - 44mm"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2 (17K90)",
                        "available" : true,
                        "platform" : "com.apple.platform.appletvsimulator",
                        "modelCode" : "AppleTV6,2",
                        "identifier" : "0E697C60-141D-48B2-80AD-8F33DD7DA939",
                        "architecture" : "x86_64",
                        "modelName" : "Apple TV 4K (at 1080p)",
                        "name" : "Apple TV 4K (at 1080p)"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2.2 (17B102)",
                        "available" : true,
                        "platform" : "com.apple.platform.iphonesimulator",
                        "modelCode" : "iPhone12,1",
                        "identifier" : "A7703B62-DEDE-4CD5-AC84-0F90DD436A4E",
                        "architecture" : "x86_64",
                        "modelName" : "iPhone 11",
                        "name" : "iPhone 11"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2.2 (17B102)",
                        "available" : true,
                        "platform" : "com.apple.platform.iphonesimulator",
                        "modelCode" : "iPad11,3",
                        "identifier" : "F00FA0CE-77D3-40D6-9701-D8A418BF51A9",
                        "architecture" : "x86_64",
                        "modelName" : "iPad Air (3rd generation)",
                        "name" : "iPad Air (3rd generation)"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2.2 (17B102)",
                        "available" : true,
                        "platform" : "com.apple.platform.iphonesimulator",
                        "modelCode" : "iPhone12,3",
                        "identifier" : "1903FB38-F17A-4EB3-97F6-CBEBFEBE1706",
                        "architecture" : "x86_64",
                        "modelName" : "iPhone 11 Pro",
                        "name" : "iPhone 11 Pro"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2 (17K90)",
                        "available" : true,
                        "platform" : "com.apple.platform.appletvsimulator",
                        "modelCode" : "AppleTV6,2",
                        "identifier" : "EAB9131F-90AD-465D-97F2-4D792EC268C2",
                        "architecture" : "x86_64",
                        "modelName" : "Apple TV 4K",
                        "name" : "Apple TV 4K"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2.2 (17B102)",
                        "available" : true,
                        "platform" : "com.apple.platform.iphonesimulator",
                        "modelCode" : "iPad8,1",
                        "identifier" : "A488B3F7-B64A-45BE-AC41-51A7B1CFEE3D",
                        "architecture" : "x86_64",
                        "modelName" : "iPad Pro (11-inch)",
                        "name" : "iPad Pro (11-inch)"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2.2 (17B102)",
                        "available" : true,
                        "platform" : "com.apple.platform.iphonesimulator",
                        "modelCode" : "iPad6,4",
                        "identifier" : "66B69D45-91BC-49B1-848E-6369A3F19259",
                        "architecture" : "x86_64",
                        "modelName" : "iPad Pro (9.7-inch)",
                        "name" : "iPad Pro (9.7-inch)"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2.2 (17B102)",
                        "available" : true,
                        "platform" : "com.apple.platform.iphonesimulator",
                        "modelCode" : "iPad8,5",
                        "identifier" : "DB6D9BDE-843E-4449-8CBA-327423C5FC9D",
                        "architecture" : "x86_64",
                        "modelName" : "iPad Pro (12.9-inch) (3rd generation)",
                        "name" : "iPad Pro (12.9-inch) (3rd generation)"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2.2 (17B102)",
                        "available" : true,
                        "platform" : "com.apple.platform.iphonesimulator",
                        "modelCode" : "iPhone10,5",
                        "identifier" : "33CDB77E-191A-4396-8B73-AF163BD271BD",
                        "architecture" : "x86_64",
                        "modelName" : "iPhone 8 Plus",
                        "name" : "iPhone 8 Plus"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2.2 (17B102)",
                        "available" : true,
                        "platform" : "com.apple.platform.iphonesimulator",
                        "modelCode" : "iPad7,12",
                        "identifier" : "EC3FBBDE-74B2-48A1-8EEB-AE8333C4A2E8",
                        "architecture" : "x86_64",
                        "modelName" : "iPad (7th generation)",
                        "name" : "iPad (7th generation)"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "13.2.2 (17B102)",
                        "available" : true,
                        "platform" : "com.apple.platform.iphonesimulator",
                        "modelCode" : "iPhone12,5",
                        "identifier" : "E48C78F9-97E8-4D4C-BA11-5783DB1243DA",
                        "architecture" : "x86_64",
                        "modelName" : "iPhone 11 Pro Max",
                        "name" : "iPhone 11 Pro Max"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "6.1 (17S83)",
                        "available" : true,
                        "platform" : "com.apple.platform.watchsimulator",
                        "modelCode" : "Watch5,4",
                        "identifier" : "E78F4E25-71C3-48F1-ABF0-C73E3C59F585",
                        "architecture" : "i386",
                        "modelName" : "Apple Watch Series 5 - 44mm",
                        "name" : "Apple Watch Series 5 - 44mm"
                      },
                      {
                        "simulator" : true,
                        "operatingSystemVersion" : "6.1 (17S83)",
                        "available" : true,
                        "platform" : "com.apple.platform.watchsimulator",
                        "modelCode" : "Watch5,3",
                        "identifier" : "25B85DF8-29BF-4E76-9545-52DE75DC346E",
                        "architecture" : "i386",
                        "modelName" : "Apple Watch Series 5 - 40mm",
                        "name" : "Apple Watch Series 5 - 40mm"
                      }
                    ]
[   +3 ms] [
             {
               "simulator" : true,
               "operatingSystemVersion" : "6.1 (17S83)",
               "available" : true,
               "platform" : "com.apple.platform.watchsimulator",
               "modelCode" : "Watch4,3",
               "identifier" : "9BF4C8C0-C2F6-419A-B7BB-3EEFD32E61DB",
               "architecture" : "i386",
               "modelName" : "Apple Watch Series 4 - 40mm",
               "name" : "Apple Watch Series 4 - 40mm"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2 (17K90)",
               "available" : true,
               "platform" : "com.apple.platform.appletvsimulator",
               "modelCode" : "AppleTV5,3",
               "identifier" : "843C3929-6F52-4B77-8474-86EEE3473952",
               "architecture" : "x86_64",
               "modelName" : "Apple TV",
               "name" : "Apple TV"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2.2 (17B102)",
               "available" : true,
               "platform" : "com.apple.platform.iphonesimulator",
               "modelCode" : "iPhone10,4",
               "identifier" : "E46CD166-BF9D-45B7-BF74-A7C9A94D27E1",
               "architecture" : "x86_64",
               "modelName" : "iPhone 8",
               "name" : "iPhone 8"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "6.1 (17S83)",
               "available" : true,
               "platform" : "com.apple.platform.watchsimulator",
               "modelCode" : "Watch4,4",
               "identifier" : "684DE048-6A55-4B60-890C-D3F1D2870909",
               "architecture" : "i386",
               "modelName" : "Apple Watch Series 4 - 44mm",
               "name" : "Apple Watch Series 4 - 44mm"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2 (17K90)",
               "available" : true,
               "platform" : "com.apple.platform.appletvsimulator",
               "modelCode" : "AppleTV6,2",
               "identifier" : "0E697C60-141D-48B2-80AD-8F33DD7DA939",
               "architecture" : "x86_64",
               "modelName" : "Apple TV 4K (at 1080p)",
               "name" : "Apple TV 4K (at 1080p)"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2.2 (17B102)",
               "available" : true,
               "platform" : "com.apple.platform.iphonesimulator",
               "modelCode" : "iPhone12,1",
               "identifier" : "A7703B62-DEDE-4CD5-AC84-0F90DD436A4E",
               "architecture" : "x86_64",
               "modelName" : "iPhone 11",
               "name" : "iPhone 11"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2.2 (17B102)",
               "available" : true,
               "platform" : "com.apple.platform.iphonesimulator",
               "modelCode" : "iPad11,3",
               "identifier" : "F00FA0CE-77D3-40D6-9701-D8A418BF51A9",
               "architecture" : "x86_64",
               "modelName" : "iPad Air (3rd generation)",
               "name" : "iPad Air (3rd generation)"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2.2 (17B102)",
               "available" : true,
               "platform" : "com.apple.platform.iphonesimulator",
               "modelCode" : "iPhone12,3",
               "identifier" : "1903FB38-F17A-4EB3-97F6-CBEBFEBE1706",
               "architecture" : "x86_64",
               "modelName" : "iPhone 11 Pro",
               "name" : "iPhone 11 Pro"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2 (17K90)",
               "available" : true,
               "platform" : "com.apple.platform.appletvsimulator",
               "modelCode" : "AppleTV6,2",
               "identifier" : "EAB9131F-90AD-465D-97F2-4D792EC268C2",
               "architecture" : "x86_64",
               "modelName" : "Apple TV 4K",
               "name" : "Apple TV 4K"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2.2 (17B102)",
               "available" : true,
               "platform" : "com.apple.platform.iphonesimulator",
               "modelCode" : "iPad8,1",
               "identifier" : "A488B3F7-B64A-45BE-AC41-51A7B1CFEE3D",
               "architecture" : "x86_64",
               "modelName" : "iPad Pro (11-inch)",
               "name" : "iPad Pro (11-inch)"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2.2 (17B102)",
               "available" : true,
               "platform" : "com.apple.platform.iphonesimulator",
               "modelCode" : "iPad6,4",
               "identifier" : "66B69D45-91BC-49B1-848E-6369A3F19259",
               "architecture" : "x86_64",
               "modelName" : "iPad Pro (9.7-inch)",
               "name" : "iPad Pro (9.7-inch)"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2.2 (17B102)",
               "available" : true,
               "platform" : "com.apple.platform.iphonesimulator",
               "modelCode" : "iPad8,5",
               "identifier" : "DB6D9BDE-843E-4449-8CBA-327423C5FC9D",
               "architecture" : "x86_64",
               "modelName" : "iPad Pro (12.9-inch) (3rd generation)",
               "name" : "iPad Pro (12.9-inch) (3rd generation)"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2.2 (17B102)",
               "available" : true,
               "platform" : "com.apple.platform.iphonesimulator",
               "modelCode" : "iPhone10,5",
               "identifier" : "33CDB77E-191A-4396-8B73-AF163BD271BD",
               "architecture" : "x86_64",
               "modelName" : "iPhone 8 Plus",
               "name" : "iPhone 8 Plus"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2.2 (17B102)",
               "available" : true,
               "platform" : "com.apple.platform.iphonesimulator",
               "modelCode" : "iPad7,12",
               "identifier" : "EC3FBBDE-74B2-48A1-8EEB-AE8333C4A2E8",
               "architecture" : "x86_64",
               "modelName" : "iPad (7th generation)",
               "name" : "iPad (7th generation)"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "13.2.2 (17B102)",
               "available" : true,
               "platform" : "com.apple.platform.iphonesimulator",
               "modelCode" : "iPhone12,5",
               "identifier" : "E48C78F9-97E8-4D4C-BA11-5783DB1243DA",
               "architecture" : "x86_64",
               "modelName" : "iPhone 11 Pro Max",
               "name" : "iPhone 11 Pro Max"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "6.1 (17S83)",
               "available" : true,
               "platform" : "com.apple.platform.watchsimulator",
               "modelCode" : "Watch5,4",
               "identifier" : "E78F4E25-71C3-48F1-ABF0-C73E3C59F585",
               "architecture" : "i386",
               "modelName" : "Apple Watch Series 5 - 44mm",
               "name" : "Apple Watch Series 5 - 44mm"
             },
             {
               "simulator" : true,
               "operatingSystemVersion" : "6.1 (17S83)",
               "available" : true,
               "platform" : "com.apple.platform.watchsimulator",
               "modelCode" : "Watch5,3",
               "identifier" : "25B85DF8-29BF-4E76-9545-52DE75DC346E",
               "architecture" : "i386",
               "modelName" : "Apple Watch Series 5 - 40mm",
               "name" : "Apple Watch Series 5 - 40mm"
             }
           ]
[+15076 ms] Syncing files to device Chrome... (completed in 17,821ms, longer than expected)
[        ] Synced 27.7MB.
[        ] <- accept
[        ] Caching compiled dill
[  +83 ms] Using Google Chrome 85.0.4183.121

[+1677 ms] [CHROME]:
[        ] [CHROME]:DevTools listening on
ws://<IP_ADDRESS>:52605/devtools/browser/e431ec42-7cde-43ad-937c-10a19fb4aa5b
[+2968 ms] Debug service listening on ws://<IP_ADDRESS>:52660/oas_3K0D_Jc=

[ +205 ms] Debug service listening on ws://<IP_ADDRESS>:52660/oas_3K0D_Jc=
[   +1 ms] Warning: Flutter's support for web development is not stable yet and hasn't
[        ] been thoroughly tested in production environments.
[        ] For more information see https://flutter.dev/web
[        ] 🔥  To hot restart changes while running, press "r" or "R".
[        ] For a more detailed help message, press "h". To quit, press "q".
[ +984 ms] ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY
╞═══════════════════════════════════════════════════════════
[   +4 ms] The following TypeErrorImpl was thrown building AppBar(dirty, dependencies:
[        ] [_LocalizationsScope-[GlobalKey#42ed2], _InheritedTheme, _ModalScopeStatus], state:
[        ] _AppBarState#541b2):
[        ] Expected a value of type 'ModalRoute<Object>?', but got one of type 'MaterialPageRoute<dynamic>'
[        ] The relevant error-causing widget was:
[        ]   AppBar file:///Users/tianguang/Documents/dev/customtest20201008/lib/main.dart:21:15
[   +3 ms] When the exception was thrown, this was the stack:
[        ] dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 216:49      throw_
[        ] dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 64:3        castError
[        ] dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 442:10  cast
[        ] dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/types.dart 392:9        as
[        ] packages/flutter/src/widgets/routes.dart 886:26                                   of
[   +2 ms] packages/flutter/src/material/app_bar.dart 505:57                                 build
[        ] packages/flutter/src/widgets/framework.dart 4792:27                               build
[        ] packages/flutter/src/widgets/framework.dart 4675:15                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[   +2 ms] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[   +2 ms] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[  +13 ms] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[   +7 ms] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 6282:32                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[   +5 ms] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[   +4 ms] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[  +22 ms] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[  +10 ms] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[   +1 ms] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[   +7 ms] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[   +1 ms] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[ +993 ms] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[   +1 ms] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 6282:32                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[   +4 ms] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[   +1 ms] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[   +1 ms] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[ +959 ms] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[   +1 ms] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[   +1 ms] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 6282:32                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[  +10 ms] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[ +969 ms] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[   +1 ms] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[   +2 ms] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[   +2 ms] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 6164:14                               mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[ +975 ms] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[   +1 ms] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[   +2 ms] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4847:11                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4838:11                               [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/framework.dart 4700:16                               performRebuild
[        ] packages/flutter/src/widgets/framework.dart 4369:5                                rebuild
[        ] packages/flutter/src/widgets/framework.dart 4654:5                                [_firstBuild]
[        ] packages/flutter/src/widgets/framework.dart 4649:5                                mount
[        ] packages/flutter/src/widgets/framework.dart 3615:13                               inflateWidget
[        ] packages/flutter/src/widgets/framework.dart 3380:18                               updateChild
[        ] packages/flutter/src/widgets/binding.dart 1215:16                                 [_rebuild]
[        ] packages/flutter/src/widgets/binding.dart 1186:5                                  mount
[        ] packages/flutter/src/widgets/binding.dart 1128:16                                 <fn>
[        ] packages/flutter/src/widgets/framework.dart 2730:19                               buildScope
[        ] packages/flutter/src/widgets/binding.dart 1127:12
attachToRenderTree
[        ] packages/flutter/src/widgets/binding.dart 966:24                                  attachRootWidget
[        ] packages/flutter/src/widgets/binding.dart 948:7                                   <fn>
[        ] dart-sdk/lib/_internal/js_dev_runtime/private/isolate_helper.dart 48:19           internalCallback
[        ]
════════════════════════════════════════════════════════════════════════════════════════════════════

Analyzing customtest20201008...
No issues found! (ran in 3.0s)

When analyzed with dart analyze --enable-experiment=non-nullable ., no errors either.

Downloading android-arm-profile/darwin-x64 tools...                 1.2s
Downloading android-arm-release/darwin-x64 tools...                 1.1s
Downloading android-arm64-profile/darwin-x64 tools...               1.2s
Downloading android-arm64-release/darwin-x64 tools...               1.1s
Downloading android-x64-profile/darwin-x64 tools...                 2.4s
Downloading android-x64-release/darwin-x64 tools...                 0.9s
[✓] Flutter (Channel master, 1.23.0-8.0.pre.222, on Mac OS X 10.15.6 19G2021 x86_64, locale en-DE)
    • Flutter version 1.23.0-8.0.pre.222 at /Users/tianguang/Documents/f/flutter
    • Framework revision d2858f00dd (5 hours ago), 2020-10-08 09:39:13 +0200
    • Engine revision 2eac514f26
    • Dart version 2.11.0 (build 2.11.0-186.0.dev)

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
    • Android SDK at /Users/tianguang/Library/Android/sdk
    • Platform android-29, build-tools 29.0.3
    • Java binary at: /Applications/Android Studio with Blaze.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
    • All Android licenses accepted.

[!] Xcode - develop for iOS and macOS (Xcode 11.2.1)
    • Xcode at /Applications/Xcode 11.2.1.app/Contents/Developer
    • Xcode 11.2.1, Build version 11B500
    ✗ CocoaPods installed but not working.
        You appear to have CocoaPods installed but it is not working.
        This can happen if the version of Ruby that CocoaPods was installed with is different from the one
        being used to invoke it.
        This can usually be fixed by re-installing CocoaPods. For more info, see
        https://github.com/flutter/flutter/issues/14293.
      To re-install CocoaPods, run:
        sudo gem install cocoapods

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 4.1)
    • Android Studio at /Applications/Android Studio with Blaze.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)

[✓] Android Studio (version 3.5)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 39.0.3
    • Dart plugin version 191.8423