[Bug] After /mute command and reload cannot access any channel

[geweald]

Which packages are you using?

stream_chat_flutter, stream_chat_persistance

On what platforms did you experience the issue?

iOS, Android, Web

What version are you using?

Latest

What happened?

After muting an user and reloading the app:

In stream_chat-3.5.1/lib/src/core/models/mute.g.dart (this exception cannot be caught outside of the library)

Steps to reproduce

1. Open channel
2. Use `/mute @user` (mute an user)
3. Refresh/restart the app, the channel or any other channel will never load because of the exception when fetching user data probably

Supporting info to reproduce

No response

Relevant log output

No response

Flutter analyze output

No response

Flutter doctor output

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[geiszla]

We have the same issue for some users. They get the following error when we call streamChatClient.connectUser(...).

I/flutter (28801): 2022-03-30 13:59:03.287894 ⚠️ 🔌 Error parsing an event: NoSuchMethodError: The method 'forEach' was called on null.
I/flutter (28801): Receiver: null
I/flutter (28801): Tried calling: forEach(Closure: (dynamic, dynamic) => void)
I/flutter (28801): 2022-03-30 13:59:03.292658 ⚠️ 🔌 Stack trace: #0      Object.noSuchMethod (dart:core-patch/object_patch.dart:38:5)
I/flutter (28801): #1      new LinkedHashMap.from (dart:collection/linked_hash_map.dart:186:11)
I/flutter (28801): #2      Serializer.moveToExtraDataFromRoot
package:stream_chat/…/util/serializer.dart:15
I/flutter (28801): #3      new ChannelModel.fromJson
package:stream_chat/…/models/channel_model.dart:41
I/flutter (28801): #4      _$MuteFromJson
package:stream_chat/…/models/mute.g.dart:11
I/flutter (28801): #5      new Mute.fromJson
package:stream_chat/…/models/mute.dart:20
I/flutter (28801): #6      _$OwnUserFromJson.<anonymous closure>
package:stream_chat/…/models/own_user.g.dart:15
I/flutter (28801): #7      MappedListIterable.elementAt (dart:_internal/iterable.dart:413:31)
I/flutter (28801): #8      ListIterator.moveNext (dart:_internal/iterable.dart:342:26)

I believe it's because the json["me"]["mutes"][0] object on the health.check message doesn't contain a channel property and the parser just casts it to Map<String, dynamic> (so doesn't check its actual type) in lib/src/core/models/mute.g.dart:11, then a forEach is called on it afterwards.

Is there any workaround for this other than unmuting the muted channels? It affects a considerable number of our users, who can't use the chat at all this way.

[xsahil03x]

Hey @geweald , I was able to reproduce this issue. Will release a fix soon 👍🏼