I get error message \"Unable to start debugging on the web server\" in Visual Studio 2010. I clicked the Help button and followed the related suggestions without success.

Unable to start debugging on web server. the web server not configured correctly.
How to resolve this problem?
Step-1
open Command Prompt (Run as administrator)
Step-2
C:\Windows\system32>cd..
C:\Windows>cd Microsoft.NET
C:\Windows\Microsoft.NET>cd Framework
C:\Windows\Microsoft.NET\Framework>cd v4.0.30319
C:\Windows\Microsoft.NET\Framework\v4.0.30319>aspnet_regiis.exe -i