ID:186430 Ignored Decrease Input Delay to Internal Cells logic option assignment to input or bidirectional pin "<name>" because pin assigned to global clock "<name>"

CAUSE: You assigned the specified input or bidirectional pin to the specified global clock and assigned the Decrease Input Delay to Internal Cells logic option to the pin. The target device cannot support the pin because global clocks do not support the Decrease Input Delay to Internal Cells logic option.

ACTION: Delete the location assignment or the Decrease Input Delay to Internal Cells logic option assignment to the pin.