Android Studio Cannot Deploy Backend : Execution Failed For Task ':app:transformclasseswithdexfordevdebug

when trying to deploy my appengine backend , I got suddenly this week the issue (“cannot find symbol method setBatchPath(String)”) similar to following SO question : 'cannot f

Solution 1:

2 Changes solved my 2nd deployment issue and enabled the build and deployment of APK. One of my module was still having compiling with Java 1.5 in Gradle, which i corrected with Java 1.7. And another module was having duplicating path on the system. When corrected,failure disappeared.