ID:176494 Can't place <name> I/O "<name>" in location <name> -- location has constraint <name> due to <name>

CAUSE: The Fitter cannot place the specified DQS I/O, nDQS or DQ I/O pin in the specified location because the I/O pin has a location constraint that prevents it from being placed.

ACTION: If you made a location assignment to the DQS I/O, nDQS, or DQ I/O pin, remove the assignment if possible. If you did not make a location assignment, modify the location assignments of the other I/O pins in the design.