The project you are trying to open is a web project you need to open it by specifying its URL path

Posted by Paul Farrow - Under: Software

The famous error “The project you are trying to open is a web project you need to open it by specifying its URL path” in visual studio .net.  Basically you have either lost your .webinfo file or your .webinfo file is pointing to the wrong project or wrong place.

Took me a while to figure it out but hope that helps someone.  Hopefully the source code provider isnt so buggy in Visual Studio 2005.