Call Ringing: type 'Null' is not a subtype of type 'Object' in type cast

[qu0cquyen]

Stack Trace:

      Exception: type 'Null' is not a subtype of type 'Object' in type cast with trace #0      CastMap.forEach.<anonymous closure> (dart:_internal/cast.dart:286:25)
      #1      _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:633:13)
compact_hash.dart:633
      #2      CastMap.forEach (dart:_internal/cast.dart:285:13)
cast.dart:285
      #3      MapBase.mapToString (dart:collection/maps.dart:122:9)
maps.dart:122
      #4      MapBase.toString (dart:collection/maps.dart:109:24)
maps.dart:109
      #5      _StringBase._interpolate (dart:core-patch/string_patch.dart:871:19)
string_patch.dart:871
      #6      CallUser.toString (package:stream_video/src/models/call_metadata.dart:166:5)
call_metadata.dart:166
      #7      mapPropsToString.<anonymous closure> (package:equatable/src/equatable_utils.dart:72:46)
equatable_utils.dart:72
      #8      MappedListIterable.elementAt (dart:_internal/iterable.dart:425:31)
iterable.dart:425
      #9      ListIterable.join (dart:_internal/iterable.dart:159:25)
iterable.dart:159
      #10     mapPropsToString (package:equatable/src/equatable_utils.dart:72:58)
equatable_utils.dart:72
      #11     EquatableMixin.toString (package:equatable/src/equatable_mixin.dart:38:15)
equatable_mixin.dart:38
      #12     _StringBase._interpolate (dart:core-patch/string_patch.dart:871:19)
string_patch.dart:871
      #13     CallMetadata.toString (package:stream_video/src/models/call_metadata.dart:33:5)
call_metadata.dart:33
      #14     _StringBase._interpolate (dart:core-patch/string_patch.dart:871:19)
string_patch.dart:871
      #15     CallRingingData.toString (package:stream_video/src/models/call_ringing_data.dart:24:5)
call_ringing_data.dart:24
      #16     _StringBase._interpolate (dart:core-patch/string_patch.dart:871:19)
string_patch.dart:871
      #17     new Call.fromRinging.<anonymous closure> (package:stream_video/src/call/call.dart:146:55)
call.dart:146
      #18     ConsoleStreamLogger.log (package:stream_video/src/logger/impl/console_logger.dart:18:65)
console_logger.dart:18
      #19     CompositeStreamLogger.log (package:stream_video/src/logger/stream_log.dart:118:13)
stream_log.dart:118
      #20     StreamLog.i (package:stream_video/src/logger/stream_log.dart:54:15)
stream_log.dart:54
      #21     new Call.fromRinging (package:stream_video/src/call/call.dart:146:15)
call.dart:146
      #22     StreamVideo._makeCallFromRinging (package:stream_video/src/stream_video.dart:510:17)
stream_video.dart:510
      #23     StreamVideo._onEvent (package:stream_video/src/stream_video.dart:404:20)
stream_video.dart:404
      #24     _rootRunUnary (dart:async/zone.dart:1407:47)
zone.dart:1407
      #25     _CustomZone.runUnary (dart:async/zone.dart:1308:19)
zone.dart:1308
      #26     _CustomZone.runUnaryGuarded (dart:async/zone.dart:1217:7)
zone.dart:1217
      #27     _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:365:11)
stream_impl.dart:365
      #28     _DelayedData.perform (dart:async/stream_impl.dart:541:14)
stream_impl.dart:541
      #29     _PendingEvents.handleNext (dart:async/stream_impl.dart:646:11)
stream_impl.dart:646
      #30     _PendingEvents.schedule.<anonymous closure> (dart:async/stream_impl.dart:617:7)
stream_impl.dart:617
      #31     _rootRun (dart:async/zone.dart:1391:47)
zone.dart:1391
      #32     _CustomZone.run (dart:async/zone.dart:1301:19)
zone.dart:1301
      #33     _CustomZone.runGuarded (dart:async/zone.dart:1209:7)
zone.dart:1209
      #34     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1249:23)
zone.dart:1249
      #35     _rootRun (dart:async/zone.dart:1399:13)
zone.dart:1399
      #36     _CustomZone.run (dart:async/zone.dart:1301:19)
zone.dart:1301
      #37     _CustomZone.runGuarded (dart:async/zone.dart:1209:7)
zone.dart:1209
      #38     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1249:23)
zone.dart:1249
      #39     _microtaskLoop (dart:async/schedule_microtask.dart:40:21)
schedule_microtask.dart:40
      #40     _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5)
schedule_microtask.dart:49

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[deven98]

Hey @qu0cquyen 👋

Can you let me know when this error occurs for you? Anything that would help us reproduce it?

Thanks.

[qu0cquyen]

Hi @deven98,

In my case, I have two apps, let say app A and app B.

App A is with the newest version of stream-video-flutter, while App B is with 0.3.7.

When App B is calling to App A, App A receives a call from B but in the state of Ringing, then the exception is thrown like above.