So I got this new lisp routine and I installed it with the ddsteel.dcl and also the ddsteel.doc I appload it into acad 2002. type in the command ddsteel and it brings up the dialog box. I choose the piece of steel I want. It asks me to pick a point. I do and then it tells me.
Command: ddsteel
Enter bottom mid point:
bad argument type: FILE nil
So what do I do to fix this?