multiple dex files define Landroid/support/v4/

Question

I can not compile the project gets the following error compilation:

Error:Execution failed for task \':myApp:dexDebug\'.

com.android.ide.commo

Answer 1

the library authors should fix them

Answer 2

This seems to be a common ADT to Android studio migration problem. ADT is looking for a copy of android-support-v4.jar in the libs/ dir while Android studio has it's own internal copy. When migrating the jar file is left in the libs dir which creates a duplicate jar most likely an older version. I deleted the jar in the libs dir and problem was solved.