에러

Execution failed for task ':app:processDebugGoogleServices'.
> No matching client found for package name 'com.mycompany.pill'

솔루션

1. google-services.json

2. "client_info"의 "package_name" 수정

https://stackoverflow.com/questions/34990479/no-matching-client-found-for-package-name-google-analytics-multiple-productf