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Realtime Flutter SDK exception: Concurrent modification during iteration: _Map len:0.
Hello everyone! I'd like to report a problem regarding the Realtime SDK on Flutter. Sometimes, but not always, an exception is thrown by the Realtime SDK after connecting:
TypeScript
E/flutter ( 4989): #0 _CompactIterator.moveNext (dart:collection-patch/compact_hash.dart:714:7)
E/flutter ( 4989): #1 RealtimeMixin._createSocket.<anonymous closure> (package:appwrite/src/realtime_mixin.dart:91:49)
E/flutter ( 4989): #2 _RootZone.runGuarded (dart:async/zone.dart:1582:10)
E/flutter ( 4989): #3 _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:392:13)
E/flutter ( 4989): #4 _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
E/flutter ( 4989): #5 _BufferingStreamSubscription._close (dart:async/stream_impl.dart:291:7)
E/flutter ( 4989): #6 _ForwardingStream._handleDone (dart:async/stream_pipe.dart:99:10)
E/flutter ( 4989): #7 _ForwardingStreamSubscription._handleDone (dart:async/stream_pipe.dart:161:13)
E/flutter ( 4989): #8 _RootZone.runGuarded (dart:async/zone.dart:1582:10)
E/flutter ( 4989): #9 _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:392:13)
E/flutter ( 4989): #10 _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
(Exception continues in message below this post, because of Discord stupid message limit)
I'm using version 12.0.3 of the Appwrite SDK. Does anyone know what could cause this problem?
TL;DR
Developers are encountering a Concurrent modification during iteration error with the Realtime SDK on Flutter. The issue seems to arise inconsistently after connecting, with stack traces indicating modification during iteration. This problem has been noted using Appwrite SDK version 12.0.3. No specific solutions were provided in the thread.Exception continues:
TypeScript
E/flutter ( 4989): #12 _SyncStreamControllerDispatch._sendDone (dart:async/stream_controller.dart:792:19)
E/flutter ( 4989): #13 _StreamController._closeUnchecked (dart:async/stream_controller.dart:647:7)
E/flutter ( 4989): #14 _StreamController.close (dart:async/stream_controller.dart:640:5)
E/flutter ( 4989): #15 new _WebSocketImpl._fromSocket.<anonymous closure> (dart:_http/websocket_impl.dart:1156:19)
E/flutter ( 4989): #16 _RootZone.runBinaryGuarded (dart:async/zone.dart:1606:10)
E/flutter ( 4989): #17 _BufferingStreamSubscription._sendError.sendError (dart:async/stream_impl.dart:358:15)
E/flutter ( 4989): #18 _BufferingStreamSubscription._sendError (dart:async/stream_impl.dart:373:9)
E/flutter ( 4989): #19 _BufferingStreamSubscription._addError (dart:async/stream_impl.dart:280:7)
E/flutter ( 4989): #20 _SinkTransformerStreamSubscription._addError (dart:async/stream_transformers.dart:75:11)
E/flutter ( 4989): #21 _SinkTransformerStreamSubscription._handleData (dart:async/stream_transformers.dart:113:7)
E/flutter ( 4989): #22 _HttpDetachedStreamSubscription._maybeScheduleData.<anonymous closure> (dart:_http/http_parser.dart:173:20)
E/flutter ( 4989): #23 _microtaskLoop (dart:async/schedule_microtask.dart:40:21)
E/flutter ( 4989): #24 _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5)
E/flutter ( 4989): ```
