The data in the data file does not conform to the UNIQUE hint specified for the BULK rowset '%1!s!'. The data in the data ...

The data in the data file does not conform to the UNIQUE hint specified for the BULK rowset '%1!s!'. The data in the data file must be unique if the UNIQUE hint is specified for a BULK rowset. Remove the UNIQUE hint, or update the input data file to ensure that the data is unique.