Fatal Error: RUNTIME_0181 Calling undefined DPI 'simsf_constra3' routine - Fatal Error: RUNTIME_0181 Calling undefined DPI 'simsf_constra3' routine Description Due to a problem in the Quartus® Prime Pro Edition Software version 24.3 for Windows, you might see this error when automating simulation with the Run Simulation feature. The error only occurs when the selected EDA simulator in Settings > EDA Tool Settings > Simulation > Tool name is Riviera-PRO. This error can happen in one of the following two ways: If the ' Simulation scripts generation only ' option in Settings > EDA Tool Settings > Simulation Flow Settings is On (default) and the following commands are executed in Quartus® Prime Tcl Console: execute_flow -simulation cd ./simulation/rivierapro/rtlsim exec run_sim_command.bat If the ' Simulation scripts generation only ' option is Off and the following command is executed in Quartus® Prime Tcl Console: execute_flow -simulation Resolution To work around this problem: Set the ' Simulation scripts generation only ' option to On (default). Execute the following command in Quartus® Prime Tcl Console: execute_flow -simulation Execute the following commands in the Command Prompt window: cd ./simulation/rivierapro/rtlsim run_sim_command.bat This problem is scheduled to be fixed in a future release of the Quartus® Prime Pro Edition Software. Custom Fields values: ['novalue'] Troubleshooting 14023356544 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 24.3 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']