When using the the new (Firebase) Assistant in Android Studio to add new services I get this error:
Firebase
No clients w
This happened for me as well... I did this...
This happens when you have already logged your app to firebase account before... for that ... Best solution is No need to edit your existing project check whether you have signed in your application to another firebase account before .. Best thing you have to do is log other firebase accounts that you owned and check your project has been created from any other account, If it is there delete it and try to connect firebase again..