Looked into it. It -could- be because another game has the same package name, because my initial build used a generic package name (and now I've learned that was a mistake). Check to see if you already have something installed to Android/data/com.org.androidset
If you do, you can try to figure out what application was installed with that package name and delete it before trying again. Not sure what would happen if you directly deleted that folder...
I'll be renaming the package for the next update, regardless.