🐛 [firebase_core] PlatformException(ExecutionException, Nonnull field "messagingSenderId" is null

[Sai7xp]

Bug report

Describe the bug
Using Firebase Messaging and Firestore for Flutter Module and after bundling module with kotlin android app this issue is happening.
Firebase is failing to Initialize. Is there any way to share the Firebase Instance created in kotlin app to Firebase Module ?

Steps to reproduce

Steps to reproduce the behavior:

1. Integrate Firebase in Flutter Module.
2. Bundle the Flutter Module with Existing Native Android App
3. Launch the bundled Application and this issue is happening.

Failed to Initialize Firebase
2023-01-20 12:25:11.596 15460-15711 flutter                 com.nitara.farmer.qa                 I  PlatformException(ExecutionException, java.util.concurrent.ExecutionException: java.lang.IllegalStateException: Nonnull field "messagingSenderId" is null., Cause: java.lang.IllegalStateException: Nonnull field "messagingSenderId" is null., Stacktrace: java.util.concurrent.ExecutionException: java.lang.IllegalStateException: Nonnull field "messagingSenderId" is null.
                                                                                                    	at com.google.android.gms.tasks.Tasks.zza(com.google.android.gms:play-services-tasks@@18.0.2:5)
                                                                                                    	at com.google.android.gms.tasks.Tasks.await(com.google.android.gms:play-services-tasks@@18.0.2:8)
                                                                                                    	at io.flutter.plugins.firebase.core.FlutterFirebaseCorePlugin.lambda$initializeCore$3$io-flutter-plugins-firebase-core-FlutterFirebaseCorePlugin(FlutterFirebaseCorePlugin.java:174)
                                                                                                    	at io.flutter.plugins.firebase.core.FlutterFirebaseCorePlugin$$ExternalSyntheticLambda1.run(Unknown Source:4)
                                                                                                    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1137)
                                                                                                    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:63

[darshankawar]

@MovingMelody

Nonnull field "messagingSenderId" is null

This error probably indicates, the plugin is not registered properly at the native side. You may take a look at this example repo and see if your code implementation and config is correct.

[google-oss-bot]

Hey @MovingMelody. We need more information to resolve this issue but there hasn't been an update in 7 weekdays. I'm marking the issue as stale and if there are no new updates in the next 7 days I will close it automatically.

If you have more information that will help us get to the bottom of this, just add a comment!

[Sai7xp]

We are using Firebase in Native Kotlin app and recently we've developed one specific Module using flutter which uses Firebase too. So the above issue is happening while bundling Flutter Module with Kotlin Application.

FlutterFirebaseCorePlugin.java In this file Line no : 53 Firebase Core android package FirebaseOptions data class still expecting gcmSenderId which is deprecated in favor of messagingSenderId.

Temp Fix :
I've hard-coded the messaging sender Id then it's working fine.

//    if (options.getGcmSenderId() != null) {
      firebaseOptions.setMessagingSenderId("hard_coded_sender_id");
//    }

@darshankawar

[darshankawar]

Thanks for the update and sharing details @MovingMelody

gcmSenderId which is deprecated in favor of messagingSenderId.

This has been already addressed in firebase_core plugin https://pub.dev/packages/firebase_core/changelog#050
And it shouldn't be the case using latest version of plugin. Can you provide the plugin versions you are using in your project ?