Load Report Failed - Server Only

Question

Hello,
I have an asp.net C# application hosted on an Amazon EC2 server. I am trying to select a report using:
    ReportDocument rep;
    protected void Page_Load(object sender, EventArgs e)
        string reportPath = Server.MapPath((string)Utils.GetSessionNavigator(this).GetDataFromCurrentPage(PageParams.Reports.Report));
        if (!IsPostBack)
            rep = new ReportDocument();
        try
            if (!File.Exists(reportPath))
                Response.Write("The specified report does not exist \n");
            rep.Load(reportPath);
            //LoadReport(rep);
            rep.SetDatabaseLogon("******", "******");
            this.CrystalReportViewer1.ToolPanelView = CrystalDecisions.Web.ToolPanelViewType.None;
            this.CrystalReportViewer1.HasToggleGroupTreeButton = false;
            this.CrystalReportViewer1.ReportSource = rep;
        catch (Exception ex)
            Response.Write(ex.Message);
    private void Page_Unload(object sender, EventArgs e)
        rep.Close();
        rep.Dispose();
The report path is pointing towards my folder containing the reports, and the relevant file is being found with File.Exists, however upon using rep.Load, the exception message 'Load Report Failed" is being posted.
I have installed the correct runtimes as I have another application running on the same server, and that isn't having the same issues. Perhaps the reportPath is different but I am not sure.
Any advice would be greatly appreciated.
Thank you.

Answer 1

Glad that it worked.
The cause is like a niddle in a haystack...:. I did remember seeing something like this and have a KB created for it but it is not available on SCN yet.
1245654 - A Crystal Reports.NET web application deployed using the Visual Studio 'Publish' option, throws "Load Report Failed" error.
Here is the solution from KB. (Works for VS 2010 too)
Compile the web application in Visual Studio.
On completion of the build as success, go to Build -> Publish Web Site.
In Publish Web Site window, set the target location.
Check the Allow this precompiled site to be updatable checkbox (by default it is unchecked).
Check the Use fixed naming and single page assemblies checkbox (by default it is unchecked).
Click OK to proceed ahead and publish the web application.
Make sure that the Crystal reports in server machine are of the same size as the one in development machine, to ensure.
But I still copy the CR reports manually.. but thats just my way.
Thanks,
Bhushan