Error with Graphics Updater for v2014b

I'm trying to update my code for 2014b using the graphics updater package on a CentOS linux system.

I keep getting this error: Undefined variable "hgupgrade" or class "hgupgrade.HGPropertyChecker".

Error in runGraphicsUpdater (line 20)

Since runGraphicsUpdater is a .p file, I can't debug.

Any suggestions?