Just noticed at the end of the section titled "Positioning the Menu" there is a sentence that says to "Delete the UIActionMenu from the scene." The intent looks to be to delete the temporary UIActionMenu from the Combat Demo scene, but the instruction to do that has already been stated a couple of paragraphs before.
The scene the user has open when they read "Delete the UIActionMenu from the scene" is the UIActionMenu scene itself. :)
Thanks, just removed the duplicate instruction!