Warum gibt Android App diese Fehlermeldung an? ⇐ Android

[Anonymous]

java.lang.RuntimeException: Unable to get provider androidx.startup.InitializationProvider: androidx.startup.StartupException: java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/lifecycle/ReportFragment$ActivityInitializationListener;
at android.app.ActivityThread.installProvider(ActivityThread.java:7244)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:6780)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6697)
at android.app.ActivityThread.access$1300(ActivityThread.java:237)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1913)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
< /code>
Ich habe an meiner Android -App gearbeitet, und plötzlich gibt es diese Warnung. Ich habe versucht, es und alles zu googeln, aber keine der Lösungen funktioniert für mich. 2.7.0)
[*]Trying different SDK versions
[*]The obvious:

• Clean and Rebuild
• Restart android studio