ID:64015 In the altfp_convert megafunction, at least one output port must be used

CAUSE: You specified the altfp_convert megafunction. However, when using the altfp_convert megafunction, you must specify at least one output port. This error usually occurs when you instantiate a megafunction directly in a text file instead of using the MegaWizard Plug-In Manager .

ACTION: Make sure to use at least one output port in the altfp_convert megafunction. To avoid receiving this message in the future, Intel recommends using the MegaWizard Plug-In Manager .