Update Gradle version on Android Studio 2.0

Question

I have updated my Android Studio last night to version 2.0 Then i cannot run app anymore. My Android Studio said that

"This version of Android Studio is incompat

Answer 1

The correct gradle build tools version for Android Studio 2.0 is version 2.0.0:

classpath 'com.android.tools.build:gradle:2.0.0'