ERROR: Unable to find Intel(R) FPGA OpenCL platform.

Hi,

I'm trying to use Intel FPGA SDK for OpenCL version 20.1 and targeting Arria 10 GX board.

I installed the FPGA board using aocl install, and aocl diagnose test passes, and it's able to find Intel FPGA SDK for OpenCL platform, as shown in the attached image, but when I invoke the host program, it cannot find the platform using cl_platform_id findPlatform(string_name) function and returns NULL. Also, I tried cl_int clGetPlatformIDs, and Intel's platform is not found.

Does anyone have any idea how to fix this?