Android Application ClassNotFoundException After Download And Install Update

I have an android app with a custom Application class. public class MyApplication extends Application { @Override public void onCreate() { super.onCreate();

Solution 1:

Well, actually it was because of Android Studio's Instant Run. I just disable it and it worked like a charm.

Despite all thank's for your help.

Solution 2:

If your package name is correct then try to clean your project and also uninstall the app. Then reinstall the app.