HTTP/1.0 503 Service Unavailable

Some days ago, I fall in a problem. I could not create an ASP.net project. An error occurred when I press ok button in New project.

ERROR:
“The Web server reported the following error when attempting to create or open the Web project located at the following URL: ‘http://localhost/MyProjectMahedee’. ‘HTTP/1.0 503 Service Unavailable’.”

Solution:

Go to browser: Internet Options->LAN Settings-> Connection Tab-> Check Bypass Proxy Server