ID:176384 Node "<name>" cannot be placed at the following locations

CAUSE: The specified node needs to be assigned to a clock pin or phase-locked loop (PLL). However, there are not enough locations available on the device to place the node.

ACTION: Refer to the messages that appear above this message in the Messages window or the Messages section of the Report window for information on locations that are legal to place this node and why the node could not be placed at other locations.