Error (13264): Can't resolve multiple constant drivers for net "n1" - Error (13264): Can't resolve multiple constant drivers for net "n1" Description Due to a problem in the Quartus® Prime Pro Edition Software version 23.4, you might see this error message when you have a Verilog/System Verilog HDL file that maps input ports to values with direct decimal. For example: .input_signal ( 1 ) . Resolution To work around this problem, change the direct decimal value to 'base<value> syntax . For example: change . input_signal ( 1 ) to .input_signal ( 'b1 ) . Custom Fields values: ['novalue'] Troubleshooting 14021503173 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] No plan to fix 23.4 ['Arria® 10 FPGAs and SoCs', 'Cyclone® 10 GX FPGA', 'Stratix® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']