Error (12077): Node instance "altera_mult_add_rtl2" instantiated with unknown parameter "<name>" - Error (12077): Node instance "altera_mult_add_rtl2" instantiated with unknown parameter "<name>" Description Due to a problem in the Quartus® Prime Standard Edition Software version 17.1 Update 1 and earlier, while using altmult_complex IP in VHDL you may see the following error messages in message window when you run Analysis & Synthesis. Error (12077): Node instance "altera_mult_add_rtl2" instantiated with unknown parameter "ACCUM_SLOAD_PIPELINE_SCLR" Error (12077): Node instance "altera_mult_add_rtl2" instantiated with unknown parameter "ADDNSUB_MULTIPLIER_PIPELINE_SCLR1" Error (12077): Node instance "altera_mult_add_rtl2" instantiated with unknown parameter "ADDNSUB_MULTIPLIER_PIPELINE_SCLR3" Error (12077): Node instance "altera_mult_add_rtl2" instantiated with unknown parameter "SIGNED_PIPELINE_SCLR_A" Error (12077): Node instance "altera_mult_add_rtl2" instantiated with unknown parameter "SIGNED_PIPELINE_SCLR_B" Resolution To work around this problem, remove these ports from the <IP_Name>.vhd file. This problem is scheduled to be fixed in a future release of the Intel Quartus® Prime Standard Edition Software. Custom Fields values: ['novalue'] Troubleshooting 2205674015 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Standard'] 18.1 17.1.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']