how update local aar package sources

Question

I created two Android Studio applications. One of them is aar library. I used this aar library in second application. I added aar library by using File->New->New Module->Import

Answer 1

In addition to Commenting/Uncommenting & Re-sync Gradle project and settings, I had to delete the entire build-cache directory.

On Mac: ~/.android/build-cache/ Windows: Unsure of where this directory location is.