Topic: Internal error: PDsystem (42): Get item - AIndex out of range

When I try to start the alalysis I get an error messege as follows: Internal error: PDsystem (42): Get item - AIndex out of range

What does that mean?

Re: Internal error: PDsystem (42): Get item - AIndex out of range

Is it not possible you have a model created in some old version and are trying to start the analysis without re-generating the mesh first?