Hi @Ehsan_Abedi
We are aware of this issue and our team is working to fix it as soon as possible.
As for now I can offer you to download this archive with Chat sample application:
MyAppChat-generated.zip (172.1 KB)
Unzip the archive, open the project in the IDE, run the following commands:
flutter packages get
chmod +x android/gradlew
And specify your App ID and API Keys in the main.dart file. Then you can run the app.
Best Regards,
Maksym