Problem : Crystal Report 11 Problem
This Exception is thrown Randomly.We are using Crystal Report 11 and Asp.Net 1.1.Thanks in Advance for the Help.
2006-07-21 09:21:51,283 [2136] – STACK TRACE : at System.Runtime.InteropServices.Marshal.StructureToPtr(Object structure, IntPtr ptr, Boolean fDeleteOld)
at CrystalDecisions.ReportAppServer.DataSetConversion.DataSetConverter.Wrap(DataSet dataset, CrdbAdoPlusDelegate& adoPlusDelegate)
at CrystalDecisions.CrystalReports.Engine.Table.SetDataSource(Object val)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.(Object |)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.SetDataSource(Object dataSet)
at CQDS.LoanApplication.SetSubReportDataSource(Application objCQApp)
Exception: System.NullReferenceException
Message: Object reference not set to an instance of an object.
Source: mscorlib
at System.Runtime.InteropServices.Marshal.StructureToPtr(Object structure, IntPtr ptr, Boolean fDeleteOld)
at CrystalDecisions.ReportAppServer.DataSetConversion.DataSetConverter.Wrap(DataSet dataset, CrdbAdoPlusDelegate& adoPlusDelegate)
at CrystalDecisions.CrystalReports.Engine.Table.SetDataSource(Object val)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.(Object |)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.SetDataSource(Object dataSet)
at CQDS.LoanApplication.SetSubReportDataSource(Application objCQApp)
2006-07-21 09:21:51,471 [2136] – STACK TRACE : at CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e)
at CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.Export(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToDisk(ExportFormatType formatType, String fileName)
at CQDS.LoanApplication.GenerateReport()
Exception: CrystalDecisions.CrystalReports.Engine.LogOnException
Message: Logon failed.
Details: Object reference not set to an instance of an object.
Error in File C:\WINDOWS\TEMP\{CA85AC32-4D4F-4C80-8DA5-141A0414D421}.rpt:
Unable to connect: incorrect log on parameters.
Source: CrystalDecisions.ReportAppServer.DataSetConversion
at CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e)
at CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.Export(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToDisk(ExportFormatType formatType, String fileName)
at CQDS.LoanApplication.GenerateReport()
Nested Exception
Exception: System.Runtime.InteropServices.COMException
Message: Logon failed.
Details: Object reference not set to an instance of an object.
Error in File C:\WINDOWS\TEMP\{CA85AC32-4D4F-4C80-8DA5-141A0414D421}.rpt:
Unable to connect: incorrect log on parameters.
at CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.Export(ExportOptions pExportOptions, RequestContext pRequestContext)
at CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext)
2006-07-21 09:21:51,283 [2136] ERROR STACK TRACE : at System.Runtime.InteropServices.Marshal.StructureToPtr(Object structure, IntPtr ptr, Boolean fDeleteOld)
at CrystalDecisions.ReportAppServer.DataSetConversion.DataSetConverter.Wrap(DataSet dataset, CrdbAdoPlusDelegate& adoPlusDelegate)
at CrystalDecisions.CrystalReports.Engine.Table.SetDataSource(Object val)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.(Object |)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.SetDataSource(Object dataSet)
at CQDS.LoanApplication.SetSubReportDataSource(Application objCQApp)
Exception: System.NullReferenceException
Message: Object reference not set to an instance of an object.
Source: mscorlib
at System.Runtime.InteropServices.Marshal.StructureToPtr(Object structure, IntPtr ptr, Boolean fDeleteOld)
at CrystalDecisions.ReportAppServer.DataSetConversion.DataSetConverter.Wrap(DataSet dataset, CrdbAdoPlusDelegate& adoPlusDelegate)
at CrystalDecisions.CrystalReports.Engine.Table.SetDataSource(Object val)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.(Object |)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.SetDataSource(Object dataSet)
at CQDS.LoanApplication.SetSubReportDataSource(Application objCQApp)
2006-07-21 09:21:51,471 [2136] ERROR – STACK TRACE : at CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e)
at CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.Export(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToDisk(ExportFormatType formatType, String fileName)
at CQDS.LoanApplication.GenerateReport()
Exception: CrystalDecisions.CrystalReports.Engine.LogOnException
Message: Logon failed.
Details: Object reference not set to an instance of an object.
Error in File C:\WINDOWS\TEMP\{CA85AC32-4D4F-4C80-8DA5-141A0414D421}.rpt:
Unable to connect: incorrect log on parameters.
Source: CrystalDecisions.ReportAppServer.DataSetConversion
at CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e)
at CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.FormatEngine.Export(ExportRequestContext reqContext)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToDisk(ExportFormatType formatType, String fileName)
at CQDS.LoanApplication.GenerateReport()
Nested Exception
Exception: System.Runtime.InteropServices.COMException
Message: Logon failed.
Details: Object reference not set to an instance of an object.
Error in File C:\WINDOWS\TEMP\{CA85AC32-4D4F-4C80-8DA5-141A0414D421}.rpt:
Unable to connect: incorrect log on parameters.
at CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.Export(ExportOptions pExportOptions, RequestContext pRequestContext)
at CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext)
Solution: Crystal Report 11 Problem
Hi ,
following article will help you to solve your problem
http://aspalliance.com/532
http://aspalliance.com/490
Regards,
