Due to a problem in the Intel® Quartus® Prime Pro Edition software version 20.2, you may see this error during the fitter (Plan) stage of compilation. This internal error occurs when compiling a Partial
Reconfiguration design for Intel® Stratix® 10 devices.
A patch is available to include this update for the Intel® Quartus® Prime Pro Edition software version 20.2.
Download and install Patch 0.38 from the appropriate link below.
Download patch Intel® Quartus® Prime Pro Edition 20.2 Patch 0.38 for Windows (.exe)
Download patch Intel® Quartus® Prime Pro Edition 20.2 Patch 0.38 for Linux (.run)
Download the Readme for Intel® Quartus® Prime Pro Edition 20.2 Patch 0.38 (.txt)
This problem is fixed starting with the Intel® Quartus® Prime Pro Edition software version 20.3.