No task registered for key RNFirebaseBackgroundMessage

[kishanj918]

Issue Description

I have installed fabric for crash reporting. I have released build to play store. I am getting this crash in fabric in new release. I am not getting this error in debug. Basically i am trying to set local schedule notification in app.

Environment

• React Native Navigation version: "react-native-navigation": "^1.1.458"
• React Native version: "react-native": "0.55.4"
• Platform(s) (iOS, Android, or both?): Android only
• Device info (Simulator/Device? OS version? Debug/Release?): Release (It's Uploaded on playstore)

Fatal Exception: com.facebook.react.common.JavascriptException: No task registered for key RNFirebaseBackgroundMessage, stack:
startHeadlessTask@281:2354
value@28:3582
<unknown>@28:1067
value@28:3009
value@28:1039

       at com.facebook.react.modules.core.ExceptionsManagerModule.showOrThrowError(ExceptionsManagerModule.java:56)
       at com.facebook.react.modules.core.ExceptionsManagerModule.reportFatalException(ExceptionsManagerModule.java:40)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.facebook.react.bridge.JavaMethodWrapper.invoke(JavaMethodWrapper.java:374)
       at com.facebook.react.bridge.JavaModuleWrapper.invoke(JavaModuleWrapper.java:162)
       at com.facebook.react.bridge.queue.NativeRunnable.run(NativeRunnable.java)
       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:31)
       at android.os.Looper.loop(Looper.java:164)
       at com.facebook.react.bridge.queue.MessageQueueThreadImpl$3.run(MessageQueueThreadImpl.java:194)
       at java.lang.Thread.run(Thread.java:764)

[bunea]

It happens because you did not follow the optional steps listed here. Unfortunately if you followed the steps and added the RNFirebaseBackgroundMessagingService those steps should not be optional as it will lead to crashes because the headless task can not be found.

Documentation should be updated to reflect this. RNFirebaseBackgroundMessagingService will crash the app if the headless task is not registered as well!

[kishanj918]

@bunea But i am setting up local notifications only. Still i have to do this for local also? they didn't mention it for local.

[bunea]

@kishanj918 If you don't need data only notifications you can remove

<service android:name="io.invertase.firebase.messaging.RNFirebaseBackgroundMessagingService" />

from your AndroidManifest.xml

[kishanj918]

@bunea thanks! will give it a try. for now closing this.

[luskin]

Can we re-open? I am seeing this thousands of times and have combed through the documentation. The odd part is that it looks to be working (the functionality of the background handler) but still receiving tons of crashes on crashlytics, see attached:

AndroidManifest.xml:

<service android:name="io.invertase.firebase.messaging.RNFirebaseBackgroundMessagingService" />

MainApplication.java:

  @Override
  public void onCreate() {
    super.onCreate();
    System.out.println("----- START ANDROID APP -----");
    SoLoader.init(this, false);
    ..........
  }

In start() of React Native App: AppRegistry.registerHeadlessTask('RNFirebaseBackgroundMessage', () => backgroundNotificationHandler)

const backgroundNotificationHandler = async () => {
  Log('Received Background Notification', ':satellite:')
  await fetchCurrentLocation()
  return Promise.resolve()
}

[luskin]

@kishanj918 Can you re-open this please? We are still receiving this error.

[Salakar]

Re-opened as per @luskin 's request.

[pscarey]

We're experiencing the same error in prod. Current attempt to fix is to upgrade from:
'com.google.firebase:firebase-messaging:17.3.0' -> 'com.google.firebase:firebase-messaging:17.3.2'

Release notes on version bump indicate a potential issue/fix:
Update - September 18, 2018
Cloud Messaging version 17.3.2
Fixed an issue that would occasionally cause apps to crash with Android Not Responding (ANR) errors when receiving a message.
https://firebase.google.com/support/release-notes/android#latest_sdk_versions

Will report back on results. Thought I'd share in case it helps someone else before we have definitive results.

[luskin]

Thanks @pscarey, curious to see how this works out for you.