Crash investigation - GoogleCloudMessaging

[alexhajdu]

Hi! Our app, according to the crashlytics, is crashing in the first 3 seconds after starting for some users. We can't reproduce it on our end, but we can see it's affecting users via crashlytics.

I think it's related to the PrFirebase plugin as, in our app, there is nothing else operating upon the GoogleCloudMessaging module. Can you please take a look and confirm it has nothing to do with the plugin so we can investigate even further?

Thanks!

Here is an error from crashlytics:

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.epicgames.ue4.GameActivity.nativeGCMReceivedRemoteNotification(java.lang.String)' on a null object reference
       at com.epicgames.ue4.RemoteNotificationsListener.onMessageReceived(RemoteNotificationsListener.java:52)
       at com.google.android.gms.gcm.GcmListenerService.handleIntent(GcmListenerService.java:69)
       at com.google.android.gms.iid.zzj.run(zzj.java:4)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1137)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:637)
       at com.google.android.gms.common.util.concurrent.zza.run(zza.java:6)
       at java.lang.Thread.run(Thread.java:1012)