Why does OpenCL™ API clGetKernelArgInfo() run fail? - Why does OpenCL™ API clGetKernelArgInfo() run fail? Description Due to a problem in the Intel® FPGA SDK for OpenCL™ software version 17.1.1, using the clGetKernelArgInfo() OpenCL™ API in the host code, an error message like the following may occur. ./program_and_kernel Build log :Trivial build The CL_PROGRAM_NUM_DEVICES is 1 The number of kernel args is 3 The of CL_KERNEL_FUNCTION_NAME is adder % Cannot get arg info: -19 The of CL_KERNEL_ARG_TYPE_NAME is (null) Cannot get arg info: -19 The of CL_KERNEL_ARG_NAME is (null) Resolution This problem has been fixed in Intel® FPGA SDK for OpenCL™ version 20.1. Custom Fields values: ['novalue'] Troubleshooting 1507275822 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 20.1 17.1.1 ['Programmable Logic Devices'] ['HLD Tools OpenCL'] ['novalue'] ['novalue']