Gradle sync failed with Android Studio 3.1: Uninitialized object exists on backward branch 70

Question

After Updating Android Studio from 3.0 to 3.1 My project gradle syncing failed with the following error.

Gradle sync failed: Uninitialized object exists on         


        

Answer 1

This is a bug of JDK old versions i guess. Go to the project structure and change your project to latest JDK like 1.80_72 or later versions.

Hopefully it will fix your problem.