store data from xml to db using sqlbulkcopy

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C#

Hi I am storing xml(xml size is 100 mb) value in datatable and store datatable value in database table using sqlbulkcopy. During this operation, I am getting datatype mismatch error.
can anyone tell me how to get rid of this error.
Thanks in Advance

connectionString = GetDatabaseConnectionPath();
            ds.ReadXml(@"..\..\XML\edition_report20140822.xml");
            sourceData = ds.Tables[0];

using (SqlBulkCopy bulkCopy =
                               new SqlBulkCopy(destinationConnection, SqlBulkCopyOptions.Default, transaction))
                   {

                      // bulkCopy.ColumnMappings.Clear();

                       //column mappings
                       //bulkCopy.ColumnMappings.Add("edition_eanisbn13", "szISBN");
                       //bulkCopy.ColumnMappings.Add("temp_edition_format", "szFormat");
                       //bulkCopy.ColumnMappings.Add("temp_binding_short_name", "szFormatAbbreviation");
                       //bulkCopy.ColumnMappings.Add("edition_product_type", "szMedia");
                       //bulkCopy.ColumnMappings.Add("producttype", "szMediaAbbreviation");
                       //bulkCopy.ColumnMappings.Add("edition_publication_date", "dtPublicationDate");
                       //bulkCopy.ColumnMappings.Add("work_cover_title", "szTitlePrefixAndTitle");
                       //bulkCopy.ColumnMappings.Add("work_sort_title", "szTitleAndTitlePrefix");
                       //bulkCopy.ColumnMappings.Add("work_sub_title", "szSubTitle");
                       //bulkCopy.ColumnMappings.Add("edition_product_type", "szPrimaryEditionEAN13");
                       //bulkCopy.ColumnMappings.Add("group_titles_series", "szSeries");
                       //bulkCopy.ColumnMappings.Add("group_sequence_number_series", "szVolume");

bulkCopy.DestinationTableName = "tblTitle";
                        bulkCopy.WriteToServer(copyDataTable);

}