ID:169163 Pin <name> with I/O standard <name> requires a clamping diode but location <name> is missing clamping diode.

CAUSE: You assigned the specified I/O pin with the specified I/O standard to the specified location. However, this location does support the necessary clamping diode for the given I/O standard.

ACTION: Assign the I/O pin to a different I/O location or remove the specified I/O standard option or the PCI_IO option from the I/O pin.