Witango-Talk: tcf - 'handler doesn't support method invocation'

[Roland Dumas]

I created a tcf
saved in the same directory as the taf that calls it. followed the instructions carefully.

when I hit it, I get this. What's it mean? Was there another setting that I needed to do??

-------
Position: tax_and_ship
Class: Internal
Main Error Number: -803

The specified object's handler doesn't support method invocation.
tax_ship_calc

File: tax_and_shipping2.taf
Position: tax_and_ship
Class: Internal
Main Error Number: -2

The specified object was not found.
tax_ship_calc