I didn\'t implement new libs but this problem occured while coding :
Error:Execution failed for task \':app:dexDebug\'.
com.android.ide.commo
You can fix the limit issue by enabling multdex in your build.gradle by adding "multiDexEnabled true". For more information see http://android-developers.blogspot.com.es/2014/12/google-play-services-and-dex-method.html
Referred from Why did this happen? How do i fix this? Android: UNEXPECTED TOP-LEVEL EXCEPTION:.