Resolve Error of Implementation 'com.android.support:appcompat-v7:28.0.0' when Adding Firebase Connection at Gradle Module App
When you get one dependency error at Gradle Module App, because of adding Firebase connection, with library implementation 'com.android.support:appcompat-v7:28.0.0', you can adding this library to resolve it: implementation 'com.android.support:support-v4:28.0.0'