ID:83016 Can't use <name> port of altmult_accum megafunction with <name> device family

CAUSE: You tried to use the specified port of the MegaWizard Plug-In Manager .

ACTION: If you want to use the specified port, change the device family. If you want to use the specified device family, disconnect the specified port, or use logic cell implementation. To avoid receiving this message in the future, Intel recommends using the MegaWizard Plug-In Manager.