ID:176497 Can't place DQ I/O "<name>" in location <name> -- can't route DQSBUS signal from associated DQS I/O "<name>" pin to this location because the DQSMUX resource is already occupied by a DQS I/O pin that is not associated with this DQ I/O pin

CAUSE: The Fitter cannot place the specified DQ I/O pin in the specified location because the DQSMUX resource required by the DQ I/O pin is already occupied by a DQS I/O pin that is not associated with this DQ I/O pin. You may have made location assignments which resulted in the Fitter attempting to place the DQ I/O pin in the specified location. If you did not make a location assignment, the specified location represents the last location in which the Fitter attempted to place the specified I/O pin.

ACTION: If you made a location assignment to the specified DQ I/O pin, remove the assignment if possible. Otherwise, remove or modify the location assignments to the specified DQS I/O or DQ I/O pins or the nDQS I/O pin associated with the specified DQ I/O pin. If this does not result in a successful fit, compile the design targeting a larger device.