'Twilio 'twilio-video-app-android' github app Video Calling app crashes on joining a room

I am new to twilio and i am developing a andorid app for video calling i have started with the twilio 'twilio-video-app-android' from github But app crashes when i click on join room with an exception "boolean com.twilio.video.LocalAudioTrack.isReleased()' on a null object reference" Unable to understand why is it showing this exception looking fwd to you help THANKS!



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