I know that it may sound obvious for most of you, but spent half an hour trying to understand why

CogUnixConfig generateWithSources  was throwing a ""

Then I discovered that I was missing the .sources. I knew that, but I didn't know it was necesary to generate VM sources.

So...just for make newbie's like better...can we add a simpler validator in #generateWithSources that checks whether the .surces is present and if not raises a clear error saying "VM source code cannot be generated without .sources file".

cheers

Mariano