问题 In one of my ASP.NET apps, all of a sudden I am unable to run it in Visual Studio 2013 due to the error displayed below. It appears that it is trying to open the web.config from a path that doesn't even exist. All of my project code, including web.config, are located under C:\Projects\SourceCode\AFEManager\Trunk\AFEManager.Web. I've found a number of posts here from users experiencing a similar error, but the solutions seem to vary and none I've found so far seem applicable to my situation. I