I did what was asked. from the client - I went to the top E-File Center\Attach PDF\selected and added the PDF,  and have it now showing in the SC return in Part V - as the proper E-File attachment in the launch attachment area, but I still get the error - Credit for Tax Paid to Other State to be attached. A PDF may be attached by going to the E-File tab in the menu and selecting the Attached PDF file option. (Which I did) Any solutions?