CrystalReport Load report failed

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. That error is:

Answer 1

I have verified John Dyer's solution, above, does not work in all cases.

I have also verified that reinstalling Crystal Runtime did no good for this particular error.

For my app this was only happening on Citrix installs of a stand-alone .exe, with embedded reports. Before using the Crystal Report Viewer, I need to make sure that I've cleared out any report previously loaded in the viewer, as per John's instructions. So, I'll wrote something (in VB) which looks like

Public Function ShowRpt(...) As Boolean
    ....
    CleanOutViewer()
    ....
End Function

where CleanOutViewer is:

Private Sub CleanOutViewer()
    If Not Me.CrystalReportViewer1.ReportSource() Is Nothing Then
        CType(Me.CrystalReportViewer1.ReportSource(), CrystalDecisions.CrystalReports.Engine.ReportDocument).Close()
        CType(Me.CrystalReportViewer1.ReportSource(), CrystalDecisions.CrystalReports.Engine.ReportDocument).Dispose()
        Me.CrystalReportViewer1.ReportSource() = Nothing
        GC.Collect()
    End If
End Sub

The calls after .Close() also had no effect (and were added as an alternate attempt to try to force the Crystal to release resources).