Error:Execution failed for task ':app:transformClassesWithJarMergingForRelease'. with release

Question

When i generate release build then i got this error Error:Execution failed for task \':app:transformClassesWithJarMergingForRelease\'. > com.android.build.a

Answer 1

Reading the comments, and having this problem myself, the problem seems to stem from a bad thirdparty lib. Perhaps using incompatible gradle or buildtool library.

Problem libs:

• com.wonderkiln:camerakit:0.11.0
• android.arch.persistence.room
• com.mapbox.mapboxsdk:mapbox-android-plugin-locationlayer

Others have similar problems with bad libs in their /libs folder.