com.facebook.jni.CppException: Unexpected token '<<'. Expected a property name

Hi Guys,

I am building the application based on jitsi meet sdk. but when i run the jitsi meet application after some customization it gives an exception and app is crashed.

following is the error with exception

E/AndroidRuntime: FATAL EXCEPTION: mqt_js
Process: org.jitsi.meet, PID: 22733
com.facebook.jni.CppException: Unexpected token ‘<<’. Expected a property name.

no stack
    at com.facebook.react.bridge.queue.NativeRunnable.run(Native Method)
    at android.os.Handler.handleCallback(Handler.java:790)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:26)
    at android.os.Looper.loop(Looper.java:164)
    at com.facebook.react.bridge.queue.MessageQueueThreadImpl$4.run(MessageQueueThreadImpl.java:225)
    at java.lang.Thread.run(Thread.java:764)