I am having trouble exporting parts or drawings as dxf files. I get an error message when my cursor is over the "Save" button that reads "Cannot complete the cut operation because some of the selected items cannot be" and then it cuts off. When my cursor is over the part it will also read "The object cannot be created."

I've tried every combination of export options and always the same. I simplified a new part to a simple cube with a hole in it, nothing. Has anyone seen this problem?