Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 19.1 and later, you may see this internal error when compiling designs targeting Intel Stratix® 10 devices.
To work around this problem, add the following assignments to your .QSF (Quartus Settings File)
- set_global_assignment -name PHYSICAL_SYNTHESIS OFF
- set_global_assignment -name ADVANCED_PHYSICAL_RETIMING PRE_PCA
This problem is scheduled to be fixed in a future release of the Intel® Quartus® Prime Pro Edition Software.