LISP error:The function DOCU::HIDE-3DVP is undefined.

[ceuro]

After I've loaded my lisp script if I try to activate the Annotation module it doesn't start.
If I try to reactivate the Modeling module it appears the message "The function DOCU::HIDE-3DVP is undefined".
If I use the following command "(act_deact_module :act "ANNOTATION" "MODULE-CONTROLLER-Modeling-ANNOTATION-TB" '(STARTUP::ACTIVATE-ANNOTATION))" in my script all works fine but I don't want to activate at the startup the Annotation module.
Any idea?
Thanks

[Markus]

Obviously you generate a package conflict with your LISP code.
I.e. you use a symbol in your code which later, on startup of Annotation, becomes available, but which is most-likely in a different package. What error message do you get if you start up Annotation? With this message it should be easy to get to the root cause of your problem.
Please provide us more details (error message, code, ...).

Markus

[ceuro]

When I start up the Annotation module there is no error message, the window for the selection of the module steel opened and it seems there is a loop, then I try to reactivate the modelling and then it appears the error message.
Mauro