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 backward branch 70 Exception Details: Location: 
com/android/build/gradle/tasks/BuildArtifactReportTask.newArtifact(Lcom/android/build/api/artifact/BuildableArtifact;)
Lcom/android/build/gradle/tasks/BuildArtifactReportTask$BuildableArtifactData;

Answer 1

As @tech_android already posted in this comment, to solve that problem permanently, go to Module Settings > SDK Location > Use embedded JDK.

This will remove dependency on the external Java installation by using the embedded JDK.

Answer 2

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.

Answer 3

It's resolved my issue when I used embedded JDK(recommended) option

Do this:

Project Structure -> SDK Location -> Select "Use embedded JDK(recommended)"