As per my understanding you have started using new Android Studio Chipmunk and trying to updated your android application (version 1) that was previously developed using Android Studio only; have signed (E.g. with Key store & Key alias) and published to Play Store, now at present you wanted to update or release a new version (called version 2) of previously developed application using new Android Studio Chipmunk and generating new signed build via same Key store & Key alias.