Error : “Unable to start debugging on the web server…” ASP.NET 4.0

Question

I am getting an error when I want to create a web site on IIS server. I am using Windows 7 and Visual Studio 2010.

Do I have to register or configure asp.net 4.0 for th

Answer 1

Check that the path of your site in IIS points to the path of your web project in VS.

I ran across this before and it was an issue of mismatched paths. If you've configured Visual Studio to use IIS and later on changed paths, IIS isn't updated automatically. You need to manually go into IIS and update the path.