Idea is quite simple. I believe that it'll be handy to have in possible reason description of error 91, exact data type names which are passed in, and connected to type input. It could help during debugging, because then one would know immediately, which data type is wrong.
Now it's like that:
"LabVIEW: The data type of the variant is not compatible with the data type wired to the type input."
And could be like this:
"LabVIEW: The data type of the variant (Numeric) is not compatible with the data type wired to the type input (String)."
