Load report failed - COMException (0x8000020D)

Question

I have a windows application project (C# and .NET 2.0) that used Crystal Report 2008.  But I get error sometimes (it seems accidentally) in loading report on end user's machine. That error is:
CrystalDecisions.Shared.CrystalReportsException: Load report failed.
System.Runtime.InteropServices.COMException (0x8000020D): Unable to load report.
   at CrystalDecisions.ReportAppServer.ClientDoc.ReportClientDocumentClass.Open(Object& DocumentPath, Int32 Options)
   at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.Open(Object& DocumentPath, Int32 Options)
   at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened()
   --- End of inner exception stack trace ---
   at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened()
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename, OpenReportMethod openMethod, Int16 parentJob)
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename)
at SIA.DataTransfer.Forms.frmReport.GetStateReport(Int32 transferType)
I'm sure report path is correct
please guide me. How can I solve this problem?

Answer 1

There are a few basic reasons you'd get the error:
1) App is asked to load the report from a faulty location
2) There is a read permissions issue on the folder the report is in
3) There is a read write permission issue on the temp folder
4) The app is not cleaning up the report object
5) A dll (such as a ufl) can not be loaded
It is critical that your original description is accurate:
"I get error sometimes (it seems accidentally) in loading report on end user's machine."
If that is the case (and I assume you meant you get the error on occassion, or after the app has been running for a while(?)), 1 to 3 above should not be in play.
Two questions:
What is the version of the assembly crystaldecisions.crystalreports.engine.dll referenced in your project?
Did you run procmon and did it show you anything?
Suggestions:
Use the [Modules|https://smpdl.sap-ag.de/~sapidp/012002523100006252802008E/modules.zip] utility to compare the dlls loading on your development and on the user computer. Since this works on your dev computer, check for dll differences.
Ensure you are using .Close and .Dispose once you are done with each report object.
See if the Event Viewer shows any messages
Ludek