query: Objective-C: 'unrecognized selector sent to instance'
positive_passages.docid: 27280
positive_passages.text: "unrecognized selector sent to instance" error in Objective-C
negative_passages.docid: 117344
negative_passages.text: Crash when using performSelector: with a SEL passed from another class
negative_passages.docid: 121965
negative_passages.text: How does a delegate work in objective-C?
negative_passages.docid: 81050
negative_passages.text: setAnnotation - unrecognized selector
negative_passages.docid: 129725
negative_passages.text: -[__NSCFDictionary objectAtIndex:]: unrecognized selector sent to instance 0x8943940 while parsing JSON Page to UITableView
negative_passages.docid: 90713
negative_passages.text: Why Objective-C doesn't support method overloading?
negative_passages.docid: 56789
negative_passages.text: Getting the class name of an instance?
negative_passages.docid: 91639
negative_passages.text: Break on _NSLockError() to debug ... How to?
negative_passages.docid: 119473
negative_passages.text: Where and how should I instantiate an object which will be used globally in an IOS app?
negative_passages.docid: 152155
negative_passages.text: Can I make instances of an NSManagedObject in no particular NSManagedObjectContext?
negative_passages.docid: 116025
negative_passages.text: Objective C calling method dynamically with a string
negative_passages.docid: 28797
negative_passages.text: "Unknown class  in Interface Builder file" error at runtime
negative_passages.docid: 156975
negative_passages.text: iOS - Passing variable to view controller
negative_passages.docid: 22324
negative_passages.text: What's the difference between declaring a variable "id" and "NSObject *"?
negative_passages.docid: 103547
negative_passages.text: What is your alternative name for ID variable in Objective-C?
negative_passages.docid: 124143
negative_passages.text: Error in Obj-C : Expected identifier or '('
negative_passages.docid: 133619
negative_passages.text: In Objective-C why should I check if self = [super init] is not nil?