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when i debug the file I wont get any error but on .net multithread process, i received the following error :
Error reading field AdeccoGroup.Data.Access.DataModel.Client._clientDescription from ResultSet: System.NullReferenceException: Object reference not set to an instance of an object. at System.Data.SqlClient.SqlDataReader.ReadColumnHeader(Int32 i) at System.Data.SqlClient.SqlDataReader.IsDBNull(Int32 i) at OpenAccessRuntime.Data.VariableLengthStringConverter.Read(DataHolder& data) at OpenAccessRuntime.Relational.RelationalGenericState.copyPass1Fields(ResultSet rs, FetchGroupField[] fetchGroups, Int32 firstCol) System.NullReferenceException: Object reference not set to an instance of an object. at System.Data.SqlClient.SqlDataReader.ReadColumnHeader(Int32 i) at System.Data.SqlClient.SqlDataReader.IsDBNull(Int32 i) at OpenAccessRuntime.Data.VariableLengthStringConverter.Read(DataHolder& data) at OpenAccessRuntime.Relational.RelationalGenericState.copyPass1Fields(ResultSet rs, FetchGroupField[] fetchGroups, Int32 firstCol) at AdeccoGroup.Business.PipelineFactory.ProcessExecutionMessage(ExecutionMessage executionMessage, RecievePipeline recievePipeline) at AdeccoGroup.Products.GDRExecutionService.ChildXMLThread.ReprocessFailedFile(ContractConfiguration contractConfig, ExecutionMessage executionMessage, String inputXml) D:\GDRFolderStructure\52479C2B-7A53-4c3d-8B79-98C658527CF9\Drop\J04_CLI_20120107195000001_52479C2B-7A53-4c3d-8B79-98C658527CF9.xml_20120823171952.xml