Internal Error: Sub-system: PE_NF, File: /quartus/power/pe_nf/pe_nf_hssi.cpp, Line: 247

Due to a problem in the Intel® Quartus® Prime Pro Edition Software, you may see this internal error if your .qsf (quartus settings file) contains the following assignment:

set_global_assignment -name ENABLE_UNUSED_RX_CLOCK_WORKAROUND ON

To avoid this error, remove the assignment as it is no longer supported.

To preserve any unused transceiver rx channels in your design, use the following assignment instead:

set_instance_assignment -name PRESERVE_UNUSED_XCVR_CHANNEL ON -to <pin_name>

This problem is scheduled to be fixed in a future release of the Intel® Quartus® Prime Pro Edition Software.