Stephen,
Given your recent posts on Creo Sim errors, it appears that the product is pretty much in the beta release phase. The message below is a typical one intended for the software developers rather than the end users; it tells the programmers where in the code the so-called "exception" occured so they can debug it.
Perhaps, PTC, for business reasons, is trying to push the not-yet-well-debugged product outto the market(which is actually typical of the software industry in general, an which is whyI personally try to stay away from the 1st few releases of any new product).
Iouri (Yuri) Apanovitch