Error: Unknown device part 1SG280LU2F50E2VG - Error: Unknown device part 1SG280LU2F50E2VG Description Due to a problem with the FPGA add-on for custom platforms in the Intel® oneAPI software version 2021.2, this error might be seen when compiling an Intel® Stratix® 10 FPGA SYCL kernel using the flat flow. Resolution A patch is available to fix this problem for the Intel® oneAPI software version 2021.2. Download and install zip/tarball from the following links: Patch Intel® oneAPI for Windows Patch Intel® oneAPI for Linux The zip/tarball directory structure should be relative to the FPGA install directory (eg. /opt/intel/oneapi/compiler/2021.2.0/linux/lib/oclfpga). Set file ownership to root (chown -R root:root) Set file permissions chmod -R 755 chmod -R g-s This problem is fixed beginning with the Intel® Quartus® Prime Pro Edition Software version 21.2 and Intel® oneAPI software version 2021.3. Custom Fields values: ['novalue'] Troubleshooting 1508810152 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 21.2 21.1 ['Stratix® 10 FPGAs and SoCs'] ['HLD Tools OpenCL'] ['novalue'] ['novalue']