ALTERA_MULT_ADD megafunction: missing variation file - ALTERA_MULT_ADD megafunction: missing variation file Description The MegaWizard™ Plug-In Manager does not include a variation file when it generates an ALTERA_MULT_ADD megafunction. Resolution Before you run RTL simulation with Nativelink, manually add the variation file ( .v or .vhd ) to the Nativelink-generated .do file. This issue is fixed in the Quartus® II software release version 14.0. Custom Fields values: ['novalue'] Troubleshooting novalue True ['Simulation'] ['FPGA Dev Tools Quartus II Software'] 14.0 13.0 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']