FCP X – Compressor Crash on Start up – Helium.Framework error.

Compressor was crashing each time I tried to run it. I was doing the updates that came with FCP X 10.0.1. I was getting a Helium Framework error, image not found or something of the like -very cryptic. Anyway I poked around and eventually just use a program removal program (AppZapper) that totally removed Compressor and all its associated plist / config files and that seemed to do the trick.