Due to a problem in the Intel® FPGA SDK for OpenCL version 21.1, this error may be seen when compiling an Intel® Arria® 10 OpenCL kernel using the import flow.
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 appropriate link below.
Download patch Intel® Quartus® Prime Pro Edition 21.1 Patch 0.14cl for Windows (.exe)
Download patch Intel® Quartus® Prime Pro Edition 21.1 Patch 0.14cl for Linux (.run)
Download the Readme for Intel® Quartus® Prime Pro Edition 21.1 Patch 0.14cl (.txt)
This problem is fixed starting with the Intel® Quartus® Prime Pro Edition software version 21.2.