You may see the above Quartus® II software fitter error when placing a transceiver channel with standard PCS enabled in channels Ch1 and Ch2 of GXB_L0 and GXB_R0 on Arria® V GX, SX, GT, and ST devices. The error occurs when the "Enable rx_pma_clkout port" option is enabled in the Arria V Native PHY IP.
Due to Arria V GX, SX, GT, and ST device limitations, the parallel recovered clock from the CDR and deserializer can not be routed to FPGA fabric.
To work around this problem, you must deselect "Enable rx_pma_clkout port" option in the Native PHY IP.