[Crash] NullPointerException - com.facebook.login.LoginFragment.onActivityResult

[raghav2945]

Checklist before submitting a bug report

• I've updated to the latest released version of the SDK
• I've searched for existing Github issues
• I've looked for existing answers on Stack Overflow, the Facebook Developer Community Forum and the Facebook Developers Group
• I've read the Code of Conduct
• This issue is not security related and can safely be disclosed publicly on GitHub

Java version

11

Android version

Android 9, Android 10, Android 11

Android SDK version

com.applovin.mediation:facebook-adapter:6.11.0.5

Installation platform & version

Gradle

Package

Login

Goals

We are experiencing a crash due to the most recent SDK upgrade. From com.applovin.mediation:facebook-adapter:6.11.0.4, to com.applovin.mediation:facebook-adapter:6.11.0.5. This is now within the top 10 crashes for our application reported on Firebase. Thus, we require assistance to manage this crash.

Expected results

No crash

Actual results

A crash has been reported via firebase, with the stack-trace shown below.

Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'boolean com.facebook.login.LoginClient.w(int, int, android.content.Intent)' on a null object reference
       at com.facebook.login.LoginFragment.onActivityResult(LoginFragment.java:183)
       at androidx.fragment.app.FragmentManager$8.onActivityResult(FragmentManager.java:2689)
       at androidx.fragment.app.FragmentManager$8.onActivityResult(FragmentManager.java:2669)
       at androidx.activity.result.ActivityResultRegistry.register(ActivityResultRegistry.java:229)
       at androidx.fragment.app.FragmentManager.attachController(FragmentManager.java:2667)
       at androidx.fragment.app.FragmentController.attachHost(FragmentController.java:117)
       at androidx.fragment.app.FragmentActivity.lambda$init$3(FragmentActivity.java:140)
       at androidx.fragment.app.FragmentActivity.$r8$lambda$euPNEtWNfVdMY89Jt5kWt_WEHqw(FragmentActivity.java)
       at androidx.fragment.app.FragmentActivity$$InternalSyntheticLambda$0$cef12c4fb802c6ea87b1fbddce076644080634cb6e3f7fb823e201a9f4f7f1ec$3.onContextAvailable(FragmentActivity.java:2)
       at androidx.activity.contextaware.ContextAwareHelper.dispatchOnContextAvailable(ContextAwareHelper.java:99)
       at androidx.activity.ComponentActivity.onCreate(ComponentActivity.java:352)
       at androidx.fragment.app.FragmentActivity.onCreate(FragmentActivity.java:217)
       at com.facebook.FacebookActivity.onCreate(FacebookActivity.kt:63)
       at android.app.Activity.performCreate(Activity.java:7110)
       at android.app.Activity.performCreate(Activity.java:7101)
       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2922)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3047)
       at android.app.ActivityThread.-wrap11(ActivityThread.java)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1777)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loop(Looper.java:166)
       at android.app.ActivityThread.main(ActivityThread.java:6861)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:450)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)

Steps to reproduce

Unknown.

Code samples & details

// INSERT YOUR CODE HERE

[kiroj305]

@raghav2945 , did you get any update from FB on the issue you reported by chance?

[hello-soon]

has same issue.
with
implementation "com.facebook.android:facebook-login:12.3.0"
implementation "com.facebook.android:facebook-core:12.3.0"
implementation "com.facebook.android:facebook-common:12.3.0"

---

maybe, unconfirmed,
androidx.fragment:fragment:1.5.5 （It turns out to be version 1.3.3)

[zfnian]

I met with this same issue, any update or assistance?

[zfnian]

@jingping2015 Can you give a help? Thanks a lot~