title: Visual Studio 2013 Unit Test error: Could not load Microsoft.VisualStudio.TestPlatform.ObjectModel.dll
body: <p>For some reason the unit tests from a test project in VS 2013 (w/Update 3) doesn't show up. </p>
  
  <pre><code>Could not load file or assembly 
  'file:///C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO 12.0\
  COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\TESTWINDOW\
  Microsoft.VisualStudio.TestPlatform.ObjectModel.dll' 
  or one of its dependencies. Unspecified error (Exception 
  from HRESULT: 0x80004005 (E_FAIL))```
  </code></pre>
  
  <p>When checking the folder, the file is there. </p>
  
  <p>My Chutzpah tests in another project in the same solution shows up. Couldn't find much info on this error when searching. Anyone had similar issues or know how to resolve this?</p>