I am getting an error when executing the callable. My code is identical to yours, so I'm not sure where to start:

final callable = FirebaseFunctions.instance
            .httpsCallable('createStreamUserAndGetToken');
final results = await callable();

Here is the call stack:

#0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:607:7)
#1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:177:18)
<asynchronous suspension>
 #2      MethodChannelHttpsCallable.call (package:cloud_functions_platform_interface/src/method_channel/method_channel_https_callable.dart:23:24)
 <asynchronous suspension>
 #3      HttpsCallable.call (package:cloud_functions/src/https_callable.dart:49:37)
 <asynchronous suspension>
 #4      FirebaseService.joinWithEmailAndPassword (package:thrills/util/firebase_service.dart:359:25)
 <asynchronous suspension>
 #5      _JoinState.build.<anonymous closure> (package:thrills/screens/join/join.dart:285:33)
 <asynchronous suspension>

I am getting this when I swap between screens that use ChannelListView with different filters. It is as if stream returns the last reference to a channel list before applying the new filters. For example, I am in my direct messages, I display a set of channels with a certain filter, then I leave the page to go on a different page that has a ChannelListView. I will get a red screen error, then after a second, the error goes away and the proper widget is shown. The issue I am seeing is twofold, when I go to direct messages, the previous ChannelListView is shown for a second, then updates, and when I go to the other screen, I get red screen error.
Here is the widget in one screen (Direct Messages)

Expanded(
              child: ChannelListView(
                
                filter: Filter.and(
                  [
                    Filter.equal('type', 'messaging'),
                    Filter.in_(
                      'members',
                      [
                        StreamChat.of(context).currentUser!.id,
                      ],
                    ),
                    Filter.equal('event', false),
                  ],
                ),
                emptyBuilder: (context) => noMessages(),
                errorBuilder: (context, error) => MessagesError(
                  error: error,
                ),
                loadingBuilder: (BuildContext context) =>
                    const Center(child: CircularProgressIndicator()),
                listBuilder: (context, channels) => ListView.builder(
                  itemCount: channels.length,
                  itemBuilder: (BuildContext context, int index) =>
                      ChannelTile(channel: channels[index], uid: uid),
                ),
              ),
            ),

Here is the widget in the other screen

return stream.ChannelListView(
              filter: stream.Filter.raw(
                value: {
                  'cid': {
                    r'$in': events.map((e) => "messaging:${e.eid}").toList(),
                  },
                  'event': true,
                  'type': 'messaging',
                },
              ),
              loadingBuilder: (BuildContext context) =>
                  const Center(child: CircularProgressIndicator()),
              emptyBuilder: (context) => noHostedEvents(),
              errorBuilder: (context, error) => MessagesError(
                error: error,
              ),
              listBuilder: (context, channels) {
                return ListView.builder(
                  itemCount: channels.length,
                  itemBuilder: (BuildContext context, int index) =>
                      EventChannelTile(
                    algoliaEvent: events.firstWhere(
                      (element) => element.eid == channels[index].id,
                    ),
                    channel: channels[index],
                  ),
                );
              },
            );

Hi, the problem that i am facing is that whenever i sign up a new account, it will display an error has occurred and doesn't direct me to the home screen. however, if i sign in or hot restart, i will be able to go to the home screen. i have the logs below but am not sure what is going wrong. any help would be greatly appreciated.

firebase_functions/unauthenticated] UNAUTHENTICATED<…>
flutter: \^[[38;5;196m│ \^[[0m\^[[39m\^[[48;5;196m<…>
flutter: \^[[38;5;196m│ \^[[0m\^[[39m\^[[48;5;196m#0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:607:7)<…>
flutter: \^[[38;5;196m│ \^[[0m\^[[39m\^[[48;5;196m#1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:167:18)<…>
flutter: \^[[38;5;196m│ \^[[0m\^[[39m\^[[48;5;196m<asynchronous suspension><…>
flutter: \^[[38;5;196m│ \^[[0m\^[[39m\^[[48;5;196m#2      MethodChannelHttpsCallable.call (package:cloud_functions_platform_interface/src/method_channel/method_channel_https_callable.dart:23:24)<…>
flutter: \^[[38;5;196m│ \^[[0m\^[[39m\^[[48;5;196m<asynchronous suspension><…>
flutter: \^[[38;5;196m│ \^[[0m\^[[39m\^[[48;5;196m#3      HttpsCallable.call (package:cloud_functions/src/https_callable.dart:49:37)<…>
flutter: \^[[38;5;196m│ \^[[0m\^[[39m\^[[48;5;196m<asynchronous suspension><…>
flutter: \^[[38;5;196m│ \^[[0m\^[[39m\^[[48;5;196m#4      _SignUpScreenState._signUp (package:ibchat/screens/sign_up_screen.dart:368:25)<…>
flutter: \^[[38;5;196m│ \^[[0m\^[[39m\^[[48;5;196m<asynchronous suspension><…>
flutter: \^[[38;5;196m│ \^[[0m\^[[39m\^[[48;5;196m<…>
flutter: \^[[38;5;196m├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄<…>
flutter: \^[[38;5;196m│ #0   StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:607:7)<…>
flutter: \^[[38;5;196m│ #1   MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:167:18)<…>
flutter: \^[[38;5;196m│ #2   <asynchronous suspension><…>
flutter: \^[[38;5;196m│ #3   MethodChannelHttpsCallable.call (package:cloud_functions_platform_interface/src/method_channel/method_channel_https_callable.dart:23:24)<…>
flutter: \^[[38;5;196m│ #4   <asynchronous suspension><…>
flutter: \^[[38;5;196m│ #5   HttpsCallable.call (package:cloud_functions/src/https_callable.dart:49:37)<…>
flutter: \^[[38;5;196m│ #6   <asynchronous suspension><…>
flutter: \^[[38;5;196m│ #7   _SignUpScreenState._signUp (package:ibchat/screens/sign_up_screen.dart:368:25)<…>
flutter: \^[[38;5;196m├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄<…>
flutter: \^[[38;5;196m│ ⛔ Sign up error<…>
flutter: \^[[38;5;196m└───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────<…>

Hi, the AppBar Title Text Color does not change color at all. When in light mode, the text is white, making it hard to see. However, since it doesn't change at all, there is no problem in seeing it when in dark mode. Ive tried tweaking around with appBarTheme but to no avail. Ive just finished the part 1 of the chat app series and was only having this problem. Do hope you can address this soon. Thank you!

hello i m trying to learn the same course and project and i m getting diffrent errors..@HayesGordon

Error: The getter 'accessToken' isn't defined for the class 'Future'.
../…/client/client.dart:290

• 'Future' is from 'dart:async'.
• 'ConnectGuestUserResponse' is from 'package:stream_chat/src/core/api/responses.dart' ('../../../Documents/flutter/.pub-cache/hosted/pub.dartlang.org/stream_chat-3.3.1/lib/src/core/api/responses.dart').
  package:stream_chat/…/api/responses.dart:1
  Try correcting the name to the name of an existing getter, or defining a getter or field named 'accessToken'.
  final guestUserToken = Token.fromRawValue(guestUser.accessToken);
  ^^^^^^^^^^^

: Error: The getter 'user' isn't defined for the class 'Future'.
../…/client/client.dart:292

• 'Future' is from 'dart:async'.

• 'ConnectGuestUserResponse' is from 'package:stream_chat/src/core/api/responses.dart' ('../../../Documents/flutter/.pub-cache/hosted/pub.dartlang.org/stream_chat-3.3.1/lib/src/core/api/responses.dart').
  package:stream_chat/…/api/responses.dart:1
  Try correcting the name to the name of an existing getter, or defining a getter or field named 'user'.
  guestUser.user,

            ^^^^
  

: Error: A value of type 'Future' can't be assigned to a variable of type 'OwnUser?'.
../…/client/client.dart:330

• 'Future' is from 'dart:async'.

• 'OwnUser' is from 'package:stream_chat/src/core/models/own_user.dart' ('../../../Documents/flutter/.pub-cache/hosted/pub.dartlang.org/stream_chat-3.3.1/lib/src/core/models/own_user.dart').
  package:stream_chat/…/models/own_user.dart:1
  return state.currentUser = connectedUser;

                             ^
  

: Error: The getter 'me' isn't defined for the class 'Future<Event?>'.
../…/client/client.dart:334

• 'Future' is from 'dart:async'.

• 'Event' is from 'package:stream_chat/src/core/models/event.dart' ('../../../Documents/flutter/.pub-cache/hosted/pub.dartlang.org/stream_chat-3.3.1/lib/src/core/models/event.dart').
  package:stream_chat/…/models/event.dart:1
  Try correcting the name to the name of an existing getter, or defining a getter or field named 'me'.
  if (event != null) return ownUser.merge(event.me);

                                                  ^^
  

: Error: A non-null value must be returned since the return type 'OwnUser' doesn't allow null.
../…/client/client.dart:342

• 'OwnUser' is from 'package:stream_chat/src/core/models/own_user.dart' ('../../../Documents/flutter/.pub-cache/hosted/pub.dartlang.org/stream_chat-3.3.1/lib/src/core/models/own_user.dart').
  package:stream_chat/…/models/own_user.dart:1

  Future openConnection() async {
  ^
  2

FAILURE: Build failed with an exception.

• Where:
  Script 'C:\Users\admin\Documents\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1070

• What went wrong:

• Execution failed for task ':app:compileFlutterBuildDebug'.

Process 'command 'C:\Users\admin\Documents\flutter\bin\flutter.bat'' finished with non-zero exit value 1

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 1m 0s
Exception: Gradle task assembleDebug failed with exit code 1

[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: Null check operator used on a null value
E/flutter ( 6983): #0 _SignupState._signUp (package:dialogico/home/signup.dart:38:30)
E/flutter ( 6983): #1 _InkResponseState.handleTap (package:flutter/src/material/ink_well.dart:1183:21)
E/flutter ( 6983): #2 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:275:24)
E/flutter ( 6983): #3 TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:652:11)
E/flutter ( 6983): #4 BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:309:5)
E/flutter ( 6983): #5 BaseTapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:279:7)
E/flutter ( 6983): #6 GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:167:27)
E/flutter ( 6983): #7 GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:492:20)
E/flutter ( 6983): #8 GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:468:22)
E/flutter ( 6983): #9 RendererBinding.dispatchEvent (package:flutter/src/rendering/binding.dart:439:11)
E/flutter ( 6983): #10 GestureBinding._handlePointerEventImmediately (package:flutter/src/gestures/binding.dart:413:7)
E/flutter ( 6983): #11 GestureBinding.handlePointerEvent (package:flutter/src/gestures/binding.dart:376:5)
E/flutter ( 6983): #12 GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:323:7)
E/flutter ( 6983): #13 GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:292:9)
E/flutter ( 6983): #14 _invoke1 (dart:ui/hooks.dart:328:13)
E/flutter ( 6983): #15 PlatformDispatcher._dispatchPointerDataPacket (dart:ui/platform_dispatcher.dart:410:7)
E/flutter ( 6983): #16 _dispatchPointerDataPacket (dart:ui/hooks.dart:262:31)
E/flutter ( 6983):

This is happening when i click signup

Hi,
Bro my code don't have any error I am using your code but little bit modified my firebase is connected and my user is also created in both getstream and firebase but I cant signin into my user its showing asynchronous suspension

#0 _login_pageState._signIn (package:dialogico/home/login.dart:87:16)
I/flutter ( 6203): │ #1
I/flutter ( 6203): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 6203): │ ⛔ not-found
I/flutter ( 6203): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 6203): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 6203): │ #0 _login_pageState._signIn (package:dialogico/home/login.dart:88:16)
I/flutter ( 6203): │ #1
I/flutter ( 6203): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 6203): │ ⛔ NOT_FOUND
I/flutter ( 6203): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 6203): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 6203): │ #0 _login_pageState._signIn (package:dialogico/home/login.dart:89:16)
I/flutter ( 6203): │ #1
I/flutter ( 6203): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 6203): │ ⛔ null