title: rsExecutionNotFound error in SQL Server Reporting Services
body: <p>I have a SQL Server Reporting Services 2005 installation that has worked great for a few years now, but has been giving me occasional glitches recently. </p>
  
  <p>I'm using the default reporting services website instead of embedding reports into my application, which has proven a very efficient way to deploy the reports. The OS is Windows Server 2003 and the reports are being viewed on IE8 running XP. </p>
  
  <p>It's not a big deal. Refreshing the browser brings the report right up each time. I guess it might be a cacheing issue. It does scare users, so it would be nice to squash this bug.</p>
  
  <p>Any ideas?</p>
  
  <h2>Server Error in '/Reports' Application.</h2>
  
  <p>Execution 'j0cnbcqzv5lxg1imzqouqxya' cannot be found (rsExecutionNotFound) 
  Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. </p>
  
  <p>Exception Details: Microsoft.Reporting.WebForms.ReportServerException: Execution 'j0cnbcqzv5lxg1imzqouqxya' cannot be found (rsExecutionNotFound)</p>
  
  <p>Source Error: </p>
  
  <p>An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  </p>
  
  <p>Stack Trace: </p>
  
  <p>[ReportServerException: Execution 'j0cnbcqzv5lxg1imzqouqxya' cannot be found (rsExecutionNotFound)]
     Microsoft.Reporting.WebForms.ServerReport.GetExecutionInfo() +289
     Microsoft.Reporting.WebForms.ServerReport.SetExecutionId(String executionId, Boolean fullReportLoad) +120
     Microsoft.Reporting.WebForms.ServerReport.LoadFromUrlQuery(NameValueCollection requestParameters, Boolean fullReportLoad) +101
     Microsoft.Reporting.WebForms.ReportDataOperation..ctor() +321
     Microsoft.Reporting.WebForms.HttpHandler.GetHandler(String operationType) +458
     Microsoft.Reporting.WebForms.HttpHandler.ProcessRequest(HttpContext context) +56
     System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
     System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&amp; completedSynchronously) +75</p>
  
  <hr>
  
  <p>Version Information: Microsoft .NET Framework Version:2.0.50727.3603; ASP.NET Version:2.0.50727.3082 </p>