webrtc-flutter-practise's Issues

Failed to execute 'setRemoteDescription' on 'RTCPeerConnection'

Hello, I'm Kim Dong Jin of TeamGRIT in Korea.
There was an error when I executed your code.
I think there is a problem at the time of calling the setRemoteDescription in the joinroom.
Thank you.

===========================================================================
[✓] Flutter (Channel stable, 3.0.2, on macOS 12.3.1 21E258 darwin-x64, locale ko-KR)
[✓] Android toolchain - develop for Android devices (Android SDK version 32.1.0-rc1)
[✓] Xcode - develop for iOS and macOS (Xcode 13.3)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2021.2)
[✓] VS Code (version 1.69.0)
[✓] Connected device (3 available)
[✓] HTTP Host Availability

[ +8 ms] Error: InvalidStateError: Failed to execute 'setRemoteDescription' on 'RTCPeerConnection': Failed to set
remote answer
sdp: Called in wrong state: stable

           at Object.createErrorWithStack (http://localhost:55949/dart_sdk.js:5093:12)
           at Error._throw (http://localhost:55949/dart_sdk.js:20399:18)
           at Error.throwWithStackTrace (http://localhost:55949/dart_sdk.js:20396:18)
           at async._AsyncCallbackEntry.new.callback (http://localhost:55949/dart_sdk.js:40921:18)
           at Object._microtaskLoop (http://localhost:55949/dart_sdk.js:40778:13)
           at _startMicrotaskLoop (http://localhost:55949/dart_sdk.js:40784:13)
           at http://localhost:55949/dart_sdk.js:36261:9

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