You may see this error, when compiling the Intel® Stratix® 10 L-Tile/H-Tile Transceiver Native PHY in Gen3 PIPE* configurations targetting -2/-3 speed grade Intel® Stratix® 10 devices using the Intel® Stratix® 10 Hard IP for PCI* Express pin locations.
To work around this problem, either change the transceiver locations to avoid those used by the Intel® Stratix® 10 Hard IP or change the device speed grade to -1.
This error will be reported when using Intel® Quartus® Prime Pro edition versions 17.0, 17.1and 18.0 when targetting a -2 or -3 speed grade.
This error has been fixed starting in Intel® Quartus® Prime Pro edition version 18.1.