Named parameter #<_diameter_mode> not defined

Hello. I have NativeCAM installed and everything looks good until I try and run a program and get this error:
Named parameter #<_diameter_mode> not defined
I've read up on named parameters but don't understand it well enough to figure out why this is happening.
Does anyone know how I might fix this?

In order to work right, you have to first insert 'Material' then 'Tool Change'. After you can select the kind of cut you want.

If not working, post a screen shot of not only the message.

Fern

You are right, I was missing a step. Thank you!