Failed to access IIS metabase.

Problem
Failed to access IIS metabase.
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: System.Web.Hosting.HostingEnvironmentException: Failed to access IIS metabase.

The process account used to run ASP.NET must have read access to the IIS metabase (e.g. IIS://servername/W3SVC). For information on modifying metabase permissions, please see http://support.microsoft.com/?kbid=267904.
Solution :-
This Error Caused Because You Not Have Register ASP.Net with IIS.Please Follow Following Step to Regiser ASP.Net With IIS.
-> Go to Start - > Run -> Cmd.

-> GO to Your System Drive Mostly C Drive.

-> Type C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis -i
Just wait And Message comes Successfully Register.