Problem duplicating projects for Challenges

I created a new folder and copied all the files from the GeoQuiz project in a new folder called GeoQuiz Challenge. Created a new Android Studio Project, imported the project from the GeoQuiz Challenge folder. At the end of the build process i get this message:

Installation_failed_invalid_apk: Split lib_slice_9_apk was defined multiple times.

I found a solution. The question was asked here:

MartijnKor’s answer worked for me.