Why do I see a "Failed to generate module" error when generating my Qsys system under Linux? - Why do I see a "Failed to generate module" error when generating my Qsys system under Linux? Description Due to a problem in the Quartus® II software versions 11.0 SP1 and earlier, you may see the following warning when generating a Qsys system on a Linux machine without the en_US locale installed: >perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LC_CTYPE = "en_US", LANG = "C" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C")/ Failed to generate module <module name> To resolve this issue, as an adminitrator, install the locale with the following command: sudo locale-gen en_US This issue is scheduled to be fixed in a future version of the Quartus II software. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']