Debugging ASP.NET, .NET framework 4.0

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C#

ASP.NET

.NET4

Microsoft

When I try to debug my code for this ASP.NET project using Microsoft Visual Web Developer 2010 Express: http://www.asp.net/mvc/tutorials/mvc-music-store-part-1[^], when I get to this point

public string Browse(string genre)
{
    string message = HttpUtility.HtmlEncode("Store.Browse, Genre = "
        + genre);

    return message;
}

I get this error:

Server Error in '/' Application. The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.

Requested URL: /


--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.225


What am I doing wrong? Is something not correctly installed? I haven't been able to find a solution from google, and have tried enabling IIS in the Properties.

Please help me.

Thanks in Advance.