Why do I see the error message in the MegaWizard when I try to generate UniPHY based DDR3 SDRAM controller for an Intel® Stratix® V device? - Why do I see the error message in the MegaWizard when I try to generate UniPHY based DDR3 SDRAM controller for an Intel® Stratix® V device? Description You may see the following error message in the MegaWizard® IP generation window in Quartus® II software version 11.1 on Linux when you try to generate UniPHY-based DDR3 SDRAM Controller IP for Intel® Stratix® V device. Error: couldn't open "altera_mem_if_ddr3_phy_001_sequencer_rom.hex": no such file or directory Resolution The workaround is always to install Cyclone® IV GX, even if it's not being used. This issue is fixed starting with the Quartus® II software version 12.0. Custom Fields values: ['novalue'] Troubleshooting 2205774401 False ['novalue'] ['FPGA Dev Tools Quartus II Software'] 12.0 11.1 ['Stratix® V E FPGA', 'Stratix® V GT FPGA', 'Stratix® V GX FPGA'] ['novalue'] ['novalue'] ['novalue']