If you have an invalid character in the logical name you gave the project in project settings, it will fail in this way.

see here:
http://larian.com/forums/ubbthreads...rds=character&Search=true#Post617267

My D:OS Mods:
Dunamis - A 15 hour Adventure Mod for D:OS EE

A Necromancer's Crusade - 10 hour adventure mod for D:OS EE

4 Character Creation (EE)