ID:169243 Can't place <name> pin <name> with I/O standard <name> in pin location <name> -- possible switch coupling with the following <number> GXB transmitter pin location(s)

CAUSE: You assigned the specified I/O pin with the specified I/O standard and location in the device. However, the Fitter cannot place the pin at the location because it is too close to the gigabit transceiver block (GXB) transmitter pin location(s).

ACTION: Delete or change the location assignment, change the I/O standard assignment, or select the same target device with a different package.