ID:84011 Cannot connect addnsub3 port when NUMBER_OF_MULTIPLIERS parameter has value <number> -- value must be greater than or equal to 2

CAUSE: The Quartus Prime software cannot connect the addnsub3 port when the NUMBER_OF_MULTIPLIERS parameter has the specified value. To connect the addnsub3 port, the NUMBER_OF_MULTIPLIERS parameter value must be greater than or equal to 2. This error usually occurs when you instantiate a megafunction directly in a text file rather than using the MegaWizard Plug-In Manager .

ACTION: Change the value of the NUMBER_OF_MULTIPLIERS parameter to greater than or equal to 2, or disconnect the addnsub3 port. To avoid receiving this message in the future, Intel recommends using the MegaWizard Plug-In Manager.