Exception returned from reporting servicing

Hi, I'm got this unhandled exeption return from our reporting server and I don't know what it means or how I can ensure it doesn't happen again. We are using SQL Server 2005 and Reporting Services 2005 with .Net 2.0 (VS 2005) ASP.NET

any help appreciated

regards

Satvinder

Exception information: Exception typeoapException

Exception message: System.Web.Services.Protocols.SoapException: Execution 'l53cr2bl5ces523lsvet0s2y'
cannot be found > Microsoft.ReportingServices.Diagnostics.Utilities.ExecutionNotFoundException: Execution
'l53cr2bl5ces523lsvet0s2y' cannot be found
End of inner exception stack trace

at Microsoft.ReportingServices.WebServer.ReportExecutionService.GetExecutionInfo(ExecutionInfo_executionInfo)
Request information: Request URL: http://uat-WebSite/Reserved.ReportViewerWebControl.axd?ReportSession=l53cr2bl5ces523lsvet0s2y_ControlID=90412828-217e-4c47-a8b4-445adb99cf71_Culture=2057_UICulture=1033_ReportStack=1_OpType=SessionKeepAlive_Interval=454000

Request path: /Reserved.ReportViewerWebControl.axd User host address: 10.110.125.68
User: LONDON_UAT_SONASA Is authenticated: True Authentication Type: NTLM Thread
account name: LONDON_UAT Thread information: Thread ID: 10 Thread account
name: LONDON_UAT Is impersonating: False

Stack trace: at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage
message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at Microsoft.SqlServer.ReportingServices2005.Execution.ReportExecutionService.GetExecutionInfo()
at Microsoft.SqlServer.ReportingServices2005.Execution.RSExecutionConnection.GetExecutionInfo()
at Microsoft.Reporting.WebForms.ServerReport.TouchSession()
at Microsoft.Reporting.WebForms.SessionKeepAliveOperation.PerformOperation(NameValueCollection
urlQuery, HttpResponse response)
at Microsoft.Reporting.WebForms.HttpHandler.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean_ completedSynchronously)

Custom event details: "
App: E 'Mon Jun 04 16:58:34 2007': LONDONWEB - " An internal error occurred on the report server. See the
error log for more details. (rsInternalError) "
App: E 'Mon Jun 04 16:58:34 2007': LONDONWEB - " An internal error occurred on the report server. See the
error log for more details. (rsInternalError) "
Sys: E 'Mon Jun 04 16:58:37 2007': DCOM - " The application-specific permission settings do not grant
Local Activation permission for the COM Server application with CLSID {BA126AD1-2166-11D1-B1D0-00805FC1270E}
to the user LONDON_ABC_PROD_UAT SID (S-1-5-21-388395589-1927312763-1538882281-22140). This security
permission can be modified using the Component Services administrative tool. "

I'm not sure, but it could have something to do with the fact that in some cases when executing a report, the URL can contain an execution ID. The execution is specific to the session and user running the report. When the session times out, or the URL is copied or used by someone else, errors may appear indication that the execution is not valid.

The URL in the error message contains a Execution ID and so this URL is only valid for some time and only for the user who started the report.

Regards, Jeroen