What's the Geometric Condition, Kenneth?

What circumstances cause the "Operation failed due to geometric condition." error to display? I know it's a catch-all, but other than zero-thickness and self intersection, what should I be on the lookout for?

A lot of times I seem to get this error when I'm extruding a cut up to a surface. This isn't really a question where there is a specific problem to diagnose, but if anyone can share some techniques for diagnosing the problem or some insight as to what this error means to Solidworks it would be helpful.

Also, does anyone have a document that lists all the possible solidworks errors and some possible course(s) of action to solve the problems?

Thanks,

Eddie

SolidworksParts And Features