Error (18212): Cannot load final snapshot for partition "root_partition” - Error (18212): Cannot load final snapshot for partition "root_partition” Description Due to a 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 are 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 Resolution There are two ways to work around this problem Approach 1 (Recommended) Delete your local BAK cache. The problem will be solved for the next and all compiles onwards. For Windows, remove $ENV{'USERPROFILE'}\\AppData\\Local\\aocl For Linux, remove /var/tmp/aocl/$ENV{USERNAME} Approach 2 Run “aoc” argument with this option “-no-read-bsp-bak-cache” . Note this will slow down compile by an hour aoc -no-read-bsp-bak-cache <kernel> This problem is fixed starting with the Intel® Quartus® Prime Pro Edition Software version 19.3. Custom Fields values: ['novalue'] Troubleshooting 1409406558 True ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 19.3 19.1 ['Programmable Logic Devices'] ['HLD Tools OpenCL'] ['novalue'] ['novalue']