Due to a problem with the Arria® 10 Device Datasheet, you may see the above error in Quartus® Prime software version 17.0 during HDL generation for Arria 10 1G/10GbE and 10GBASER-KR PHY in Arria 10 automotive speed grade device even though the maximum data rate specified in datasheet is 12.5Gbps. The maximum transceiver data rate should be 8Gbps for Arria 10 automotive speed grade device.
This problem will be fixed in a future version of the Arria 10 Device Datasheet.