Error Connecting with Firebase in Android Local module descriptor class for com.google.firebase.auth not found
You forgot to initialize your
auth variable. You need to set
auth = FirebaseAuth.getInstance();
You can do this wherever as long as
auth is initialized when it's referenced. I personally would put it in the
Firebase suddenly stops working, Local module descriptor class for com.google.android.gms.crash not found
You are getting the following error:
Local module descriptor class for com.google.android.gms.crash not found
Because the device on which you are using your app does not have the latest version of
Google Play Services.
In order to solve this, update the
Google Play Services to the latest version and your problem will be solved.