Android Unable to instantiate activity: Didn't find class on path
After i spend a while on this problem, the solution that i found is a conflict between importing Properties > Android - appcompat_v7 and appcompat_v4 that was added in the libs folder. After i remove the appcompat_v4 the error no longer appear. I hope that answer can help in the future someone.
http://*.com/questions/17273218/android-unable-to-instantiate-activity-didnt-find-class-on-path