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 "ACCUM_SLOAD_PIPELINE_SCLR" Description Due to a problem with the Cyclone® V FPGA ALTMULT_COMPLEX IP in the Intel® Quartus® Prime Standard Edition Software version 17.0, you might see the error above during compilation if the IP variation file type is VHDL. Resolution To work around this issue, use the Verilog IP variation file type. This problem is fixed starting with the Intel® Quartus® Prime Standard Edition Software version 18.0. Custom Fields values: ['novalue'] Troubleshooting FB: 483411; HSD: 2205638564 False ['DSP'] ['FPGA Dev Tools Quartus® Prime Software Standard'] 18.0 17.0 ['Cyclone® V FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']