title: Visual Studio Nuget dll not found in Release mode
body: <p>I have a multi-project solution.  In fact, some projects happen to be shared by 2 different solutions.</p>
  
  <p>Anyhow, one of these is a test project and uses RhinoMocks.  I used NUGET to add this to the project, and the solution is set to enable the download any packages from NUGET.</p>
  
  <p>It builds just fine when in DEBUG mode, but when I put it into RELEASE mode, I get:</p>
  
  <blockquote>
    <p><em>Error    1   The type or namespace name 'Rhino' could not be found (are you missing a using directive or an assembly reference?)</em></p>
  </blockquote>
  
  <p>I don't think it's limited to RhinoMock, I've occassionally got it with NUNIT too.</p>
  
  <p>Any ideas here?</p>
  
  <p>Thanks</p>