Anytime I try to build my project I keep getting this error:
Execution failed for task \':app:processReleaseGoogleServices\'.
No matching client found for pa
Probably a bit late but I had a similar problem.
It occurred when I initially connected my app to Firebase analytics for some reason it only picked up my "debug" flavor.
I had to log into Firebase, go to the console and select the relevant project and then manually add the additional "release" flavor.
Then I reconnected to Firebase in Android Studio (which automatically updated and downloaded the json file from Firebase into Studio), re-compiled my app and it worked.