DuplicateFileException error while building Android APK

Question

I am using Android Studio 2.0 on Windows 7. When building my Android project, I get the following error:

:app:transformResourcesWithMergeJavaResForDebug FAIL         


        

Answer 1

Completing @Apperside answer.

I fixed the error by adding the following lines to my build.gradle file of my app module:

android{

    packagingOptions {
            exclude 'com/google/appengine/repackaged/org/apache/commons/codec/language/bm/*'
            exclude 'com/google/appengine/repackaged/org/codehaus/jackson/impl/VERSION.txt'
            exclude 'com/google/appengine/repackaged/org/apache/commons/codec/language/*'
        }

    (...)  
}