MacOS: 0.4: [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: Null check operator used on a null value #3
Description
Hi Hip, the console output is full with the error below.
[ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: Null check operator used on a null value
#0 State.setState (package:flutter/src/widgets/framework.dart:1108)
#1 _ControlScreenState.initState.<anonymous closure> (package:rcmnode/controlnodescreen.dart:36)
#2 _rootRunUnary (dart:async/zone.dart:1436)
#3 _CustomZone.runUnary (dart:async/zone.dart:1335)
#4 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1244)
#5 _CustomZone.bindUnaryCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1281)
#6 _rootRunUnary (dart:async/zone.dart:1444)
#7 _CustomZone.runUnary (dart:async/zone.dart:1335)
#8 _CustomZone.bindUnaryCallback.<anonymous closure> (dart:async/zone.dart:1265)
#9 _Timer._runTimers (dart:isolate-patch/timer_impl.dart:395)
#10 _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:426)
#11 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:184)