Firebase Auth UI (Phone) not working with Full Mode R8 enable

[ArcherEmiya05]

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Step 1: Are you in the right place?

Yes

Step 2: Describe your environment

• Android device: Any
• Android OS version: Any
• Google Play Services version: Any
• Firebase/Play Services SDK version: Any
• FirebaseUI version: Any

Step 3: Describe the problem:

With Android Studio Flamingo it seems that Full Mode R8 is enabled by default. Firebase Auth UI (Phone) cannot pass the captcha part even with test account when Full Mode R8 is not disable in gradle.properties.

# Disable R8 in full mode
android.enableR8.fullMode=false

Steps to reproduce:

1. Use Android Studio Flamingo Canary 2
2. Use Firebase Auth UI (Phone)
3. Build and run the app

Observed Results:

Not working when Full Mode R8 is enabled

Expected Results:

Work with Full Mode R8, maybe a proguard rule is needed?

Relevant Code:

  [SmsRetrieverHelper] SMS verification code request failed: unknown status code: 17499 Instantiation of JsonResponse failed! class com.google.android.gms.internal.firebase-auth-api.zzzp
2022-10-04 01:44:05.312   475-475   AuthUI                  com.sample.app           E  A sign-in error occurred.
                                                                                                    com.google.firebase.FirebaseException: An internal error has occurred. [ Instantiation of JsonResponse failed! class com.google.android.gms.internal.firebase-auth-api.zzzp ]
                                                                                                        at com.google.android.gms.internal.firebase-auth-api.zzwe.zza(com.google.firebase:firebase-auth@@21.0.8:4)
                                                                                                        at com.google.android.gms.internal.firebase-auth-api.zzwy.zza(com.google.firebase:firebase-auth@@21.0.8:1)
                                                                                                        at com.google.android.gms.internal.firebase-auth-api.zzwz.run(com.google.firebase:firebase-auth@@21.0.8:3)
                                                                                                        at android.os.Handler.handleCallback(Handler.java:739)
                                                                                                        at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                                                        at android.os.Looper.loop(Looper.java:135)
                                                                                                        at android.app.ActivityThread.main(ActivityThread.java:5221)
                                                                                                        at java.lang.reflect.Method.invoke(Native Method)
                                                                                                        at java.lang.reflect.Method.invoke(Method.java:372)
                                                                                                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
                                                                                                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)

[benoitletondor]

Can confirm it still happens now that Flamingo is stable. Please fix that :pray:

[kajfik]

If you have recently upgraded to AGP 8.0 or if you have enabled android.enableR8.fullMode=true then this might fix it for you: https://github.com/firebase/firebase-android-sdk/issues/2124#issuecomment-920922929

[benoitletondor]

Why is it closed? @ArcherEmiya05

I don't see a release that supposedly fixes it.

[benoitletondor]

@ArcherEmiya05 hello ? This bug isn't fixed at all!

[ArcherEmiya05]

Sorry, I closed it as I no longer experience this. @benoitletondor what is your AGP version?

[benoitletondor]

8.1.2

Note that I didn't re-check recently but since there was 0 change on this library is there a chance it can be fixed via AGP? I can run some tests if needed

[ArcherEmiya05]

8.1.2

Note that I didn't re-check recently but since there was 0 change on this library is there a chance it can be fixed via AGP? I can run some tests if needed

I think the issue is either with AGP or Android Studio Flamingo, I used Iguana and Giraffe and I no longer experience such issue.

[benoitletondor]

Ok let me run some tests today and I'll get back to you

[benoitletondor]

Ok just tested and it seems to be working fine now, thanks a lot @ArcherEmiya05