Description
This error may be seen in the Intel® Quartus® Prime Pro Edition software version 17.1 and later when multiple IOPLLs are driven directly by one dedicated reference clock in Intel® Stratix® 10 devices.
Resolution
To avoid this error, promote the reference clock to a global clock with the folloing constraint in Quartus Settings File (.qsf).
set_instance_assignment -name GLOBAL_SIGNAL GLOBAL_CLOCK -to xxx