Date: 2019oct10 OS: Android Language: gradle Q. How to update implementation 'com.android.support:appcompat-v7:26.1' to level 28? A. Replace with two lines: implementation 'com.android.support:appcompat-v7:28.0.0' implementation 'com.android.support:support-v4:28.0.0' I didn't figure this out https://stackoverflow.com/questions/53094716/implementation-com-android-supportappcompat-v728-0-0