NullReferenceException: Object reference not set to an instance of an object.

[former_member1273447]

    Dim RptDoc = New ReportDocument
    Dim exOpt As ExportOptions
    Dim dfdopt = New DiskFileDestinationOptions
    
    RptDoc.Load(Server.MapPath("~/InvoiceWithPayments.rpt"))
    dfdopt.DiskFileName = Server.MapPath("~/Invoice" & Invoice & ".pdf")

    exOpt = RptDoc.ExportOptions
    exOpt.ExportDestinationType = ExportDestinationType.DiskFile

    exOpt.ExportFormatType = ExportFormatType.PortableDocFormat
    exOpt.DestinationOptions = dfdopt

    RptDoc.SetParameterValue("InvoiceNumber", CObj(14161))

    RptDoc.Export()

I am facing following error in running the above code

[NullReferenceException: Object reference not set to an instance of an object.]
   CrystalDecisions.CrystalReports.Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext) +645
   CrystalDecisions.CrystalReports.Engine.FormatEngine.Export(ExportRequestContext reqContext) +208
   CrystalDecisions.CrystalReports.Engine.FormatEngine.Export() +68
   CrystalDecisions.CrystalReports.Engine.ReportDocument.Export() +58
   ASP.cr2pdf_aspx.__Renderform1(HtmlTextWriter __w, Control parameterContainer) in C:\Customers\CR2PDF.aspx:76
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +268
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +9737744
   System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +32
   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +53
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +66
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
   System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +40
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +128
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +13
   System.Web.UI.Page.Render(HtmlTextWriter writer) +29
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +66
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1303

Remember. Report file have all credential saved to connect. This code works well on Win8 and Win2012 Server but don't work another instance of Win2012 Server.

Thanks

[former_member11696 · Accepted solution]

Use Fiddler and compare the info.

It should also show you what is missing or does not have permissions to.

Has Records = True just means it's a report with saved data, it does not and never has saved the password in any version of CR Reports. That would be a huge security hole...

If no issue with 64 bit that means you have the 64 bit Client installed and configured, not working in 32 bit means you don't have the 32 bit Client install and/or it's not configure and/or not working.

Don