Error: s0: Cannot find sequencer/sequencer.elf - Error: s0: Cannot find sequencer/sequencer.elf Description When generating a DDR3 controller, you may see an error similar to the following. Error: s0: Cannot find sequencer/sequencer.elf This error occurs when the DDR3 IP generation tries to invoke the Nios2 Command Shell and it fails. In Windows, the most common reason is that Windows Subsystem for Linux (WSL) is not properly installed on the user's machine. In Linux, either or both of the 32-bit libraries and build essentials are not installed correctly. Resolution For Windows, make sure to install the WSL correctly. See the following solution for details How to install the Windows* Subsystem for Linux* (WSL) on Windows* OS? For Linux, make sure to install the required libraries and packages. An Ubuntu example is shown below. sudo dpkg --add-architecture i386 sudo apt update sudo apt install build-essential Custom Fields values: ['novalue'] Troubleshooting 1408018128, 18012579462 False ['DDR3 SDRAM Controller with UniPHY IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] No plan to fix 20.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']