Compass exception

[selankon]

Hi,

I get a compass exception, but anyway it locate me:

E/flutter ( 3723): [ERROR:flutter/lib/ui/ui_dart_state.cc(186)] Unhandled Exception: NoSuchMethodError: The method 'cast' was called on null.
E/flutter ( 3723): Receiver: null
E/flutter ( 3723): Tried calling: cast<double>()
E/flutter ( 3723): #0      Object.noSuchMethod (dart:core-patch/object_patch.dart:54:5)
E/flutter ( 3723): #1      FlutterCompass.events.<anonymous closure> (package:flutter_compass/flutter_compass.dart:49:59)
E/flutter ( 3723): #2      _MapStream._handleData (dart:async/stream_pipe.dart:213:31)
E/flutter ( 3723): #3      _ForwardingStreamSubscription._handleData (dart:async/stream_pipe.dart:153:13)
E/flutter ( 3723): #4      _rootRunUnary (dart:async/zone.dart:1362:47)
E/flutter ( 3723): #5      _CustomZone.runUnary (dart:async/zone.dart:1265:19)
E/flutter ( 3723): #6      _CustomZone.runUnaryGuarded (dart:async/zone.dart:1170:7)
E/flutter ( 3723): #7      _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:341:11)
E/flutter ( 3723): #8      _DelayedData.perform (dart:async/stream_impl.dart:591:14)
E/flutter ( 3723): #9      _StreamImplEvents.handleNext (dart:async/stream_impl.dart:706:11)
E/flutter ( 3723): #10     _PendingEvents.schedule.<anonymous closure> (dart:async/stream_impl.dart:663:7)
E/flutter ( 3723): #11     _rootRun (dart:async/zone.dart:1346:47)
E/flutter ( 3723): #12     _CustomZone.run (dart:async/zone.dart:1258:19)
E/flutter ( 3723): #13     _CustomZone.runGuarded (dart:async/zone.dart:1162:7)
E/flutter ( 3723): #14     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1202:23)
E/flutter ( 3723): #15     _rootRun (dart:async/zone.dart:1354:13)
E/flutter ( 3723): #16     _CustomZone.run (dart:async/zone.dart:1258:19)
E/flutter ( 3723): #17     _CustomZone.runGuarded (dart:async/zone.dart:1162:7)
E/flutter ( 3723): #18     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1202:23)
E/flutter ( 3723): #19     _microtaskLoop (dart:async/schedule_microtask.dart:40:21)
E/flutter ( 3723): #20     _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5)

➜ flutter --version
Flutter 2.0.3 • channel unknown • unknown source
Framework • revision 4d7946a68d (4 months ago) • 2021-03-18 17:24:33 -0700
Engine • revision 3459eb2436
Tools • Dart 2.12.2

[Xennis]

Hi @selankon , which version of the plugin you were using?

[selankon]

Well, in my pubspec is configured like this:

  flutter_map_location: any # Used to locate the user on the map

Looking my pub cache seem 0.12.0

[Xennis]

Dear @hemanthrajv I'm using your great flutter_compass plugin. Do you might have an idea how the issue above could happen and what to do to prevent it?

Somehow here https://github.com/hemanthrajv/flutter_compass/blob/8855c7189195f4d5ecc04bb31159598c8ff0a9f3/lib/flutter_compass.dart#L49 data was null if I read the stack that was provided by the user correctly.

I don't really have an idea and I also can't reproduce the issue.

[Xennis]

No response for quite some time. Closed.