System.InvalidOperationException: Stack empty

user_1755565 0
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Once running ASP.NET 4.x application built in Visual Studio 2013 I am getting the below exception.

I have tried to disable the PageInspector by removing page inspector assembly

<assemblies>
    <remove assembly="Microsoft.VisualStudio.Web.PageInspector.Loader, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
</assemblies>

and adding this configuration to app settings

<appSettings>
    <add key="PageInspector:ServerCodeMappingSupport" value="Disabled"/>
</appSettings>

Nothing helped. 

[/Pages/TargetPage.aspx] System.Web.HttpException (0x80004005): Exception of type 'System.Web.HttpException' was thrown. ---> System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.InvalidOperationException: Stack empty.
   at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
   at System.Collections.Generic.Stack`1.Pop()
   at Microsoft.VisualStudio.Web.PageInspector.Runtime.WebForms.SelectionMappingRenderTraceListener.EndRendering(TextWriter writer, Object renderedObject)
   at System.Web.UI.RenderTraceListener.RenderTraceListenerList.EndRendering(TextWriter writer, Object renderedObject)
   at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter)
   at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.HandleError(Exception e)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.LegacyPageAsyncInfo.<CallHandlersPossiblyUnderLock>b__32(Object o)
   at System.Web.HttpContext.InvokeCancellableCallback(WaitCallback callback, Object state)
   at System.Web.UI.Page.LegacyPageAsyncInfo.CallHandlersPossiblyUnderLock(Boolean onPageThread)
   at System.Web.UI.Page.LegacyPageAsyncInfo.CallHandlers(Boolean onPageThread)
   at System.Web.HttpAsyncResult.End()
   at System.Web.UI.Page.LegacyAsyncPageEndProcessRequest(IAsyncResult result)
   at System.Web.UI.Page.AsyncPageEndProcessRequest(IAsyncResult result)

Is there any way how to avoid the exception? Thanks a lot for any suggestions

visual-studio-2013 asp.net-4.0 asp.net
12 Answers

I have found the problem. There was changed way how to generate IDs of controls in GridView from default to 

ClientIDMode="Predictable" ClientIDRowSuffix="ID"

Which resulted in the exception. Not sure why the real exception was hidden by PageInspector stack empty. Just reverting the change to original resolved the issue.

Now the exception is different (but once GridView settings is back to original this disapper too)

System.ArgumentException: An entry with the same key already exists.
user_17555650

I face this problem while selecting different dropdown value and below is the solution of the problem

First clear the selected value for dropdown and then enable other dropdown value selection

dropdown.ClearSelection();
dropdown.Items.FindByValue(result.Birthday.Value.Year.ToString()).).Selected = true;
user_136627550
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