ID:11816 Cannot use input port <name> of the ALTERA_MULT_ADD megafunction with the <name> device family.

CAUSE: You specified an input port of the ALTERA_MULT_ADD megafunction; however, you cannot use the specified input port with the specified device family. This error occurs when you instantiate a megafunction directly in a text file.

ACTION: If you want to use the specified input port, change the device family. If you want to use the specified device family, disconnect the specified input port. Use the MegaWizard Plug-In Manager .