update rxdart

packages/stream_chat_flutter_core/lib/src/channel_list_core.dart

@@ -132,6 +132,8 @@ class ChannelListCoreState extends State<ChannelListCore> {
         stream: channelsBlocState.channelsStream,
         builder: (context, snapshot) {
           if (snapshot.hasError) {
+            print(snapshot.error);
+            print(snapshot.stackTrace);
             return widget.errorBuilder(context, snapshot.error!);
           }
           if (!snapshot.hasData) {

packages/stream_chat_flutter_core/lib/src/channels_bloc.dart

@@ -71,7 +71,7 @@ class ChannelsBlocState extends State<ChannelsBloc>
   }
 
   /// The current channel list
-  List<Channel>? get channels => _channelsController.value;
+  List<Channel>? get channels => _channelsController.valueOrNull;
 
   /// The current channel list as a stream
   Stream<List<Channel>> get channelsStream => _channelsController.stream;
@@ -128,7 +128,7 @@ class ChannelsBlocState extends State<ChannelsBloc>
           _channelsController.add(temp);
         }
         if (_channelsController.hasValue &&
-            _queryChannelsLoadingController.value!) {
+            _queryChannelsLoadingController.value) {
           _queryChannelsLoadingController.sink.add(false);
         }
       }

packages/stream_chat_flutter_core/lib/src/message_search_bloc.dart

@@ -93,8 +93,7 @@ class MessageSearchBlocState extends State<MessageSearchBloc>
         final temp = oldMessages + messages.results;
         _messageResponses.add(temp);
       }
-      if (_messageResponses.hasValue &&
-          _queryMessagesLoadingController.value!) {
+      if (_messageResponses.hasValue && _queryMessagesLoadingController.value) {
         _queryMessagesLoadingController.add(false);
       }
     } catch (e, stk) {

packages/stream_chat_flutter_core/lib/src/users_bloc.dart

@@ -92,7 +92,7 @@ class UsersBlocState extends State<UsersBloc>
         final temp = oldUsers + usersResponse.users;
         _usersController.add(temp);
       }
-      if (_usersController.hasValue && _queryUsersLoadingController.value!) {
+      if (_usersController.hasValue && _queryUsersLoadingController.value) {
         _queryUsersLoadingController.add(false);
       }
     } catch (e, stk) {