ID:186482 Ignored assignment to node "<name>" because the node is either not fed by an input I/O pin or the input I/O pin is not locked to a specific (x, y) location

CAUSE: The Fitter ignored the assignment you made to the specified node because it is not fed by an I/O pin or the I/O pin feeding it is not locked to a specific (x, y) location.

ACTION: Delete the assignment from the specified node and set tight timing constraints in order to instruct the Fitter to optimize I/O to register connections.