Load report failed vs2005 web application

Question

Post Author: haz
CA Forum: Crystal Reports
Hi,
I am running Crystal Reports viewer on IIS6.0 and windows server 2003, which was installed using the redistributable package that comes along with Visual Studio 2005. We open these reports through a web based application 1 which is run on a different application pool on IIS. 
This  web application 1 has 2 parts - one is the normal data display quiries from the back end SQL server 2005 and the other is the Crystal Reports which also quires data from Oracle. At times i find that these reports all of them throw an error - Load Report Failed. At the same time the Part 1 of this application does work fine in showing the data that is queried from the database. Moreover at this stage, I dont find any errors in the Event viewer. If i restart this application pool alone, the reports starts working fine again.
I had gone through a few of the news groups and have made all the necessary permission related changes like the TEMP Folder, ASP.NET temporary folder, the folder in which the crystal reports is placed etc but still the same error throws up after some point in time. Wanted to know if there is any special configuration required on the Application pool when it comes to Crystal Reports. We have bout 10 to 15 users using this application for testing and it only throws this error at times and not always.
Looking forward to any kind of solution from your side.
Regards
Haz

Answer 1

And finally the stack trace.  Sorry for the length of these posts.
[COMException (0x800001f5): The Report Application Server failed]
   CrystalDecisions.ReportAppServer.ClientDoc.ReportClientDocumentClass.Open(Object& DocumentPath, Int32 Options) +0
   CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.Open(Object& DocumentPath, Int32 Options) +126
   CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened() +575
[CrystalReportsException: Load report failed.]
   CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened() +646
   CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename, OpenReportMethod openMethod, Int16 parentJob) +1374
   CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename) +169
   Report_Viewer_Crystal_CrystalView.ConfigureCrystalReports() in c:\Inetpub\wwwroot\Report Viewer\Crystal\CrystalView.aspx.cs:49
   Report_Viewer_Crystal_CrystalView.Page_Init(Object sender, EventArgs e) in c:\Inetpub\wwwroot\Report Viewer\Crystal\CrystalView.aspx.cs:33
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +33
   System.Web.UI.Control.OnInit(EventArgs e) +99
   System.Web.UI.Page.OnInit(EventArgs e) +9
   System.Web.UI.Control.InitRecursive(Control namingContainer) +321
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +834