Thanks Anonymous Monk.

Actually, your question led to the fix. It turns out that the DateTime and Params::Validate libraries were installed in two places. I suppose this might be a relic from back when this was originally built. I caught the DateTime double and renamed it but had missed the Params::Validate double. Once I moved that relic the code ran fine.

This was just a matter of an updated DateTime depending on an obsolete Params::Validate library.

Thanks for the clue.

D.