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via GitHub by peterwjames
, 1 year ago
Attempt to invoke virtual method 'void com.google.firebase.database.DatabaseReference.removeEventListener(com.google.firebase.database.ChildEventListener)' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.firebase.database.DatabaseReference.removeEventListener(com.google.firebase.database.ChildEventListener)' on a null object reference	at com.google.cloud.solutions.flexenv.PlayActivity$4.onResult(PlayActivity.java:243)	at com.google.cloud.solutions.flexenv.PlayActivity$4.onResult(PlayActivity.java:240)	at com.google.android.gms.internal.zznv$zza.zzb(Unknown Source)	at com.google.android.gms.internal.zznv$zza.handleMessage(Unknown Source)	at android.os.Handler.dispatchMessage(Handler.java:102)	at android.os.Looper.loop(Looper.java:148)	at android.app.ActivityThread.main(ActivityThread.java:5417)	at java.lang.reflect.Method.invoke(Native Method)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)