Thanks condolent! I forgot to mention but it was your tutorial I followed
but it seemed to work for everyone else so I'm guessing I messed up somewhere.
At first I thought it was because I originally tried to use the built in c2 plugin and had them both integrated but even after removing it I'm still failing to build.
Now that I look, I have 2 plugins for "Google Play Services for Android" one is a dependency for Admob, which works. The other is a dependency for the Cordova Game Plugin, which fails. Could this be the conflict? (And would that mean I have to find a new plugin for admob? :/)