ID:176316 I/O assignment analysis allows pin "<name>" assigned to dedicated GXB receiver input pin location <name> (<name>) to not feed the datain input port of a GXB receiver. However, to successfully run the Fitter, pin "<name>" must feed the datain input port of a GXB receiver.

CAUSE: You ran the Fitter with the specified pin assigned to the specified gigabit transceiver block (GXB) receiver pin location. However, the specified pin does not feed the datain port of a GXB receiver. The I/O assignment analysis flow continues to run, but this error causes fitting to fail. The specified pin must feed the datain port of a GXB receiver.

ACTION: Remove the pin assignment, or feed the pin to the datain input port of a GXB receiver.