Error: Unknown device part 10AX115S2F45I1SG - Error: Unknown device part 10AX115S2F45I1SG Description Due to a problem in the FPGA SDK for OpenCL™ version 21.1, this error may be seen when compiling an Arria® 10 OpenCL kernel using the flat flow. Resolution A patch is available to fix this problem for the Intel® Quartus® Prime Pro Edition software version 21.1. Download and install Patch 0.14cl from the files below. This problem is fixed starting with the Quartus® Prime Pro Edition software version 21.2. Custom Fields values: Troubleshooting 1508810152 ['FPGA Dev Tools Quartus® Prime Software Pro'] 21.2 21.1 ['Arria® 10 FPGAs and SoCs'] ['HLD Tools OpenCL']