Due to problem in Intel® FPGA SDK for OpenCL™ version 19.1, you may see an OpenCL™ kernel compile crash after installing the Intel® Quartus® Prime Software 19.1 0.03 patch. The Intel® FPGA SDK for OpenCL™ uses BAK-cache (a local copy in a temporary folder of the local machine) to speed up subsequent kernel compiles.
The error messages is shown below. It should be visible on the standard output and printed in quartus_sh_compile.log.
Error (18212): Cannot load final snapshot for partition "root_partition" - the partition is not in a version compatible format.
Error: Quartus Prime MIF/HEX Update was unsuccessful. 1 error, 0 warnings
Error (23035): Tcl error:
Error (23031): Evaluation of Tcl script scripts/post_flow_pr.tcl unsuccessful