Get extra error output when debugging custom types?

[ZJE]

Is it possible to get extra output when running custom types? Right now, I'm getting an error message and I'm not sure where in the code it's being thrown from.
For example, I can see that I'm trying to iterate over a null object, but I'm not sure where in the code this happening when the message is this:
---
Error: /Stage[main]//Node[testnode0101]/TestType[testname]: Could not evaluate: undefined method `each' for nil:NilClass
---

Thanks!

[Stefan Schulte]

Try to run puppet with the --trace option which will hopefully show a
stacktrace when the error is happening. Otherwise you can place a few
method call like

debug "inside validation block"

etc and run puppet with -d/--debug

-Stefan

[ZJE]

--trace gives exactly what I was looking for - thanks!