title: Publish Fails when using configsource
body: <p>I am trying to publish a mvc app. I am running into the following error whenever I publish</p>
  
  <p>Error   203 An error occurred loading a configuration file: Directory 'C:\DevelopmentPath\csautoparameterize\original\bin\Extensions' does not exist. Failed to start monitoring file changes.  </p>
  
  <p>The extensions directory is a directory that contains an external config source file that is contained in a seperate probject that is referenced in this application. It doesn't look like that directory structure is being copied over, and is missing</p>