Unable to login

[mihai9112]

E/flutter ( 6678): [ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled Exception: NoSuchMethodError: The method 'hasUserName' was called on null. E/flutter ( 6678): Receiver: null E/flutter ( 6678): Tried calling: hasUserName() E/flutter ( 6678): #0 Object.noSuchMethod (dart:core-patch/object_patch.dart:50:5) E/flutter ( 6678): #1 _LoginPageState.buildButton.. (package:reazzon/src/pages/login_page.dart:442:40) E/flutter ( 6678): #2 _rootRunUnary (dart:async/zone.dart:1132:38) E/flutter ( 6678): #3 _CustomZone.runUnary (dart:async/zone.dart:1029:19) E/flutter ( 6678): #4 _CustomZone.runUnaryGuarded (dart:async/zone.dart:931:7) E/flutter ( 6678): #5 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:336:11) E/flutter ( 6678): #6 _DelayedData.perform (dart:async/stream_impl.dart:591:14) E/flutter ( 6678): #7 _StreamImplEvents.handleNext (dart:async/stream_impl.dart:707:11) E/flutter ( 6678): #8 _PendingEvents.schedule. (dart:async/stream_impl.dart:667:7) E/flutter ( 6678): #9 _rootRun (dart:async/zone.dart:1120:38) E/flutter ( 6678): #10 _CustomZone.run (dart:async/zone.dart:1021:19) E/flutter ( 6678): #11 _CustomZone.runGuarded (dart:async/zone.dart:923:7) E/flutter ( 6678): #12 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:963:23) E/flutter ( 6678): #13 _rootRun (dart:async/zone.dart:1124:13) E/flutter ( 6678): #14 _CustomZone.run (dart:async/zone.dart:1021:19) E/flutter ( 6678): #15 _CustomZone.runGuarded (dart:async/zone.dart:923:7) E/flutter ( 6678): #16 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:963:23) E/flutter ( 6678): #17 _microtaskLoop (dart:async/schedule_microtask.dart:41:21) E/flutter ( 6678): #18 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)

[ujwalbasnet1]

Its due to some error in AppState
Function(User) get setUser => _userController.sink.add; must be Function(User) get setUser => _userController.add;

its fixed.