The Report Viewer Web Control HTTP Handler has not been registered in the application's web.config file

The Report Viewer Web Control HTTP Handler has not been registered in the application's web.config file.  Add <add verb="*" path="Reserved.ReportViewerWebControl.axd" type = "Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> to the system.web/httpHandlers section of the web.config file.

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.

Exception Details: Microsoft.Reporting.WebForms.ReportViewerHandlerNotRegisteredException: The Report Viewer Web Control HTTP Handler has not been registered in the application's web.config file.  Add <add verb="*" path="Reserved.ReportViewerWebControl.axd" type = "Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> to the system.web/httpHandlers section of the web.config file.

Source Error:

[No relevant source lines]

Source File: c:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\a3a9c4a2\2269e5ce\App_Web_2mq5agib.0.cs    Line: 0

Version Information: Microsoft .NET Framework Version:2.0.50727.6413; ASP.NET Version:2.0.50727.6414

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Resolution:

Add the below section in <HttpHandler>

<add verb="*" path="Reserved.ReportViewerWebControl.axd" type = "Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />