Firebaseui-android: Firebaseui auth - does not implement interface 'android.arch.lifecycle.LifecycleOwner'

[miltonmartins]

Step 1: Are you in the right place?

Yes

Step 2: Describe your environment

• Android device: Moto Maxx
• Android OS version: 6.0.1
• Google Play Services version: NA
• Firebase/Play Services SDK version: 15.0.0
• FirebaseUI version: 3.3.1

Step 3: Describe the problem:

app crashes when starting firebaseui-auth

Observed Results:

FATAL EXCEPTION: main
                  Process: com.hyperlista, PID: 16872
                  java.lang.IncompatibleClassChangeError: Class 'com.firebase.ui.auth.KickoffActivity' does not implement interface 'android.arch.lifecycle.LifecycleOwner' in call to 'android.arch.lifecycle.Lifecycle android.arch.lifecycle.LifecycleOwner.getLifecycle()' (declaration of 'android.arch.lifecycle.LiveData' appears in /data/app/com.hyperlista-2/split_lib_dependencies_apk.apk)
                      at android.arch.lifecycle.LiveData.observe(LiveData.java:166)
                      at com.firebase.ui.auth.KickoffActivity.onCreate(KickoffActivity.java:34)
                      at android.app.Activity.performCreate(Activity.java:6259)
                      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1130)
                      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379)
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490)
                      at android.app.ActivityThread.-wrap11(ActivityThread.java)
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354)
                      at android.os.Handler.dispatchMessage(Handler.java:102)
                      at android.os.Looper.loop(Looper.java:148)
                      at android.app.ActivityThread.main(ActivityThread.java:5443)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
  ```

#### Relevant Code:

```java
 startActivityForResult(
                AuthUI.getInstance()
                        .createSignInIntentBuilder()
                        .setAvailableProviders(Arrays.asList(
                                AuthUI.IdpConfig.EmailBuilder().build(),
                                AuthUI.IdpConfig.GoogleBuilder().build()))
                        .build(),
                RC_SIGN_IN)

[samtstern]

@miltonmartins can you show the dependencies block from your app's build.gradle?

[miltonmartins]

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation 'com.google.firebase:firebase-config:15.0.0'
    implementation 'com.google.firebase:firebase-core:15.0.0'
    implementation 'com.google.firebase:firebase-crash:15.0.0'
    implementation 'com.google.firebase:firebase-database:15.0.0'
    implementation 'com.google.firebase:firebase-firestore:15.0.0'
    implementation 'com.google.firebase:firebase-storage:15.0.0'
    implementation 'com.google.firebase:firebase-auth:15.0.0'
    implementation('com.crashlytics.sdk.android:crashlytics:2.7.1@aar') {
        transitive = true
    }

    implementation 'com.firebaseui:firebase-ui-auth:3.3.1'
    implementation 'com.firebaseui:firebase-ui-storage:3.3.1'

    implementation 'com.google.android.gms:play-services-maps:15.0.0'
    implementation 'com.google.maps.android:android-maps-utils:0.5'

    implementation 'com.android.support:design:26.2.1'
    implementation 'com.android.support:support-v4:26.1.0'
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support:recyclerview-v7:26.1.0'
    implementation 'com.android.support:palette-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    implementation 'com.github.chrisbanes:PhotoView:2.0.0'
    implementation project(':timeline')

    testImplementation 'junit:junit:4.12'
    androidTestImplementation('com.android.support.test.espresso:espresso-core:3.0.0', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })

    implementation 'com.android.support:mediarouter-v7:26.2.1'
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.google.code.gson:gson:2.8.0'
    implementation 'net.hockeyapp.android:HockeySDK:5.1.0'

    implementation 'com.github.bumptech.glide:glide:4.6.1'
    kapt 'com.github.bumptech.glide:compiler:4.6.1'

    implementation 'com.google.android.gms:play-services-auth:15.0.0'
    implementation 'com.google.android.gms:play-services-cast-framework:15.0.0'
}

[samtstern]

Hmm I am surprised by this since KickoffActivity comes from AppCompatActivity which has implemented LifeCycleOwner since support lib 26.1.0, which you have:
https://developer.android.com/topic/libraries/support-library/revisions#26-1-0

[samtstern]

@miltonmartins could you try replacing all of your 26.1.0 dependencies with 27.1.0 or 27.1.1?

If that's not an option, add this dependency:
implementation 'android.arch.lifecycle:runtime:1.1.0'

[samtstern]

@miltonmartins going to close this one since it has been inactive for 10 days an I can't reproduce. Let me know if you want to continue and we can re-open it.

[Hishmad]

Hello: Yes I have the same problem like @miltonmartins
@samtstern I replaced to 27.1.1 as you recomend
but my apps crash

[Xoshbin]

Same here: Using Android X
java.lang.IncompatibleClassChangeError: Class 'com.firebase.ui.auth.KickoffActivity' does not implement interface 'androidx.lifecycle.LifecycleOwner' in call to 'androidx.lifecycle.Lifecycle androidx.lifecycle.LifecycleOwner.getLifecycle()' (declaration of 'androidx.lifecycle.LiveData' appears in /data/app/-GmLOsMRYOmQxMy1_jAp1uA==/base.apk)

[ashwanibhatt902]

I had somewhat similar issue and commenting out "implementation 'androidx.core:core:1.1.0-alpha02" solved it for me.

[loudweb]

I've had the same issue and after nothing seemed to fix it. I was almost giving up.
However, as a last try a I added
android.arch.core:core:1.0.0-alpha3 and
androidx.core:core:1.1.1-alpha2

The build failed and removing these two again and going back to the original dependency set fixed the error and things are working now. If this works for someone!

[leslion]

Similar to @fezzab I had the same issue after migrating to Android. After trying almost everything, what worked was commenting out
implementation 'com.firebaseui:firebase-ui-database:4.3.0'
Syncing with gradle and uncommenting that line and syncing.

Hope this helps someone!

[vyarovyi]

It helped for me:
implementation "androidx.appcompat:appcompat:1.1.0-beta01"