If your business object is contained by form and your form uses the property cMenuPad in order to show a menu pad of its own, the next piece of code will be executed

IF !EMPTY(This.cMenuPad) AND ;
llFormIsPresent AND ;
TYPE("goApp.oMenu") == "O"
=EVAL("goApp.oMenu." + This.cMenuPad + ".Show()")
ENDIF

However, the "llFormIsPresent" variable is not declared or has any assigned value.
Probably, the first IF statement should be replaced with:

llFormIsPresent = This.IsFormHost()

And test this variable before registering the business object.

If somebody already has a fix for this, please let me know it.

Thanks in advance and Regards.

Oscar