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.
System.Web.Hosting.HostingEnvironmentException: Failed to access IIS metabase.
you may have installed IIS Server after installing the .NET framework.
Error Screen shot:
This Error Caused Because You does not Register ASP.Net with IIS. Please Follow the below Steps to Regiser ASP.Net With IIS:
Step 1: Go to Start then Run
Step 2: Write cmd and then press enter
Step 3: Go to your windows directory. Here i am considering c Drive
Step 4: Type C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis -i
Step 6: Change the path based on your local path.
Step 7: Wait a few moment until a message comes Successfully Register.
Note: If you multiple .net version like Asp.net 1.1,Asp.net 2.0 or Asp.net 3.5 then modify the above command accordingly & run.
Hope now your problem has been resolved.