Flutterfire: firebase_auth: ^0.16.0 production Crash on android

[niypoo]

That I got it in Crashlytics

Fatal Exception: java.lang.NullPointerException
Attempt to invoke virtual method 'void k.b.b.a.j.a(java.lang.String, java.lang.Object)' on a null object reference

it's happened 2 times on
Android 9

io.flutter.plugins.firebaseauth.FirebaseAuthPlugin$3.onAuthStateChanged (FirebaseAuthPlugin.java:45)
com.google.firebase.auth.zzp.run (zzp.java:24)
android.os.Handler.handleCallback (Handler.java:873)
android.os.Handler.dispatchMessage (Handler.java:99)
com.google.android.gms.internal.firebase_auth.zzj.dispatchMessage (zzj.java)
android.os.Looper.loop (Looper.java:226)
android.app.ActivityThread.main (ActivityThread.java:7191)
java.lang.reflect.Method.invoke (Method.java)
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:499)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:942)

and happened 2 times on
Android 7.1.1

io.flutter.plugins.firebaseauth.FirebaseAuthPlugin$3.onAuthStateChanged (FirebaseAuthPlugin.java)
com.google.firebase.auth.zzp.run (zzp.java)
android.os.Handler.handleCallback (Handler.java:751)
android.os.Handler.dispatchMessage (Handler.java:95)
com.google.android.gms.internal.firebase_auth.zzj.dispatchMessage (zzj.java)
android.os.Looper.loop (Looper.java:154)
android.app.ActivityThread.main (ActivityThread.java:6816)
java.lang.reflect.Method.invoke (Method.java)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:1565)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1453)

[niypoo]

I have created an issue in flutter but I have added in flutter not here so I have added it in wrong place
https://github.com/flutter/flutter/issues/58859

[hweiguang]

I am having this issue as well during my development and this only happens on Android. I am able to replicate the crash by the following steps.

1. Launch an app with a Google Sign In button.
2. Press the back button on the device. (Exiting the app via the home button will not crash)
3. The app should exit.
4. Open the app again.
5. Sign in with Google.
6. App crashes.

[matthewrice345]

This is happening on 0.16.1 as well.

[roughike]

Related to #2608.

There are two separate open PRs that seem to fix this:

• #2719
• #2605

(cloud_firestore had a similar issue, #2517, that was fixed by #2733.)

[noinskit]

Friendly ping? These two open PRs have been idle for two weeks.

[noinskit]

Another ping? It's been over a month...

[cubuspl42]

There's a newer bug, that probably should've been closed as a duplicate:
https://github.com/FirebaseExtended/flutterfire/issues/2886

It's already closed, because the devs state that this will be fixed in the upcoming rework.

[jvidalorozco]

same problem
I'll try to downgrade the version and hope it works

[dleyvac]

@jvidalorozco did it work?

[Salakar]

Hey 👋

Our rework of the firebase_auth plugin as part of the FlutterFire roadmap was published over a week ago with a ton of fixes and new features. Please could you try the new version and see if this is still an issue for you? If it is then please submit a new up to date GitHub issue.

For help migrating to the new plugins please see the new migration guide: https://firebase.flutter.dev/docs/migration

[joniaiuser]

@Salakar We have this set of plugins deployed in our production app and this error has appeared in our Crashlytics logs.

#firebase
firebase_core: ^0.5.0
firebase_auth: ^0.18.0+1
cloud_firestore: ^0.14.0+2
firebase_storage: ^4.0.0
firebase_analytics: ^6.0.0
firebase_remote_config: ^0.4.0
firebase_crashlytics: ^0.2.0-dev.5
firebase_messaging: ^7.0.0
firebase_performance: ^0.4.0
firebase_dynamic_links: ^0.6.0

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'void io.flutter.plugin.common.MethodChannel.invokeMethod(java.lang.String, java.lang.Object, io.flutter.plugin.common.MethodChannel$Result)' on a null object reference at io.flutter.plugins.firebase.auth.FlutterFirebaseAuthPlugin$3.onCodeAutoRetrievalTimeOut(FlutterFirebaseAuthPlugin.java:828) at com.google.firebase.auth.api.internal.zzfk.zza(zzfk.java:2) at com.google.firebase.auth.api.internal.zzfm.run(zzfm.java:4) at android.os.Handler.handleCallback(Handler.java:789) at android.os.Handler.dispatchMessage(Handler.java:98) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6944) at java.lang.reflect.Method.invoke(Method.java) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)