ERROR: APK path is not specified for module
- From your existing project, go to 'File' -> 'Project Structure'
- Click 'Modules' entry from the 'Project Settings' group (on the left side)
- Click 'Android' module for your project
- Click 'New' where it says 'Android Platform'
- Point it to the Android SDK location that you have locally.
- Select an API version.
- Click 'Apply'