PackageManager: Prevent error when malformed package manifest
PackageManager: Prevent error when malformed package manifest

arduino-org/OS.js-v2,arduino-org/Arduino-OS,arduino-org/Arduino-OS,arduino-org/Arduino-OS,arduino-org/OS.js-v2,arduino-org/OS.js-v2,arduino-org/Arduino-OS,arduino-org/Arduino-OS,arduino-org/OS.js-v2,arduino-org/OS.js-v2