title: The project has an assembly reference missing it's <Private> element
body: <p>I am trying to use cruise control .net to build a solution using msbuild.  When the project is built inside of Visual Studio (2010) I do not receive any errors; however, when I try to let cruise control build the project I receive the following error:</p>
  
  <p>The project has an assembly reference missing it's &lt;Private&gt; element.</p>
  
  <p>The project does not have any missing assembly references, so I know this is not the issue.</p>
  
  <p>I have scoured Google for an answer and have found nothing... have any of you run into this issue before?  Any help would be greatly appreciated.</p>
  
  <p>Thanks.</p>