Android Studio 3.6 canary 4 - Gradle throwing DefaultProjectSyncIssues exception
Just upgrade your Android Gradle plugin manually to alpha 4.
classpath 'com.android.tools.build:gradle:3.6.0-alpha04'
I ran into the same issue, and updating my Gradle build tools version did the trick:
classpath 'com.android.tools.build:gradle:3.6.0-alpha04'