Internal Error: Sub-system: PGMIO, File: /quartus/pgm/pgmio/pgmio_devices.cpp, Line: 7614 Can not locate the SFL sof file: d:/altera/12.0/quartus/common/devinfo/programmer/sfl_enhanced_5sgxea7n2.sof - Internal Error: Sub-system: PGMIO, File: /quartus/pgm/pgmio/pgmio_devices.cpp, Line: 7614 Can not locate the SFL sof file: d:/altera/12.0/quartus/common/devinfo/programmer/sfl_enhanced_5sgxea7n2.sof Description When you program the EPCS device through the Stratix® V FPGA (production device) JTAG port in the Quartus® II software v12.0CB, you might get the following error: Internal Error: Sub-system: PGMIO, File: /quartus/pgm/pgmio/pgmio_devices.cpp, Line: 7614 Can not locate the SFL sof file: d:/altera/12.0/quartus/common/devinfo/programmer/sfl_enhanced_5sgxea7n2.sof This is due to the lack of default sfl image in the software. Resolution You may create a project with a SFL for Stratix® V FPGA (production device). After compilation, change the .sof file to the filename shown in the error message. Then put this file into the Quartus® II software installation path: /../altera/12.0/quartus/common/devinfo/programmer/ Related Articles Internal Error: Sub-system: PGMIO, File: /quartus/pgm/pgmio/pgmio_devices.cpp, Line: 7672 Can not locate the SFL sof file: <filename> Custom Fields values: ['novalue'] Troubleshooting 56472 False ['novalue'] ['novalue'] novalue novalue ['Stratix® V FPGAs', 'Stratix® V GX FPGA'] ['novalue'] ['novalue'] ['novalue']