title: The 'Provider Package' did not load correctly
body: <p><strong>VS 2013 Professional - Version 12.0.31101.00 Update 4</strong></p>
  
  <p>All of a sudden, whenever I try to open a project (MVC project or Python project), I get:</p>
  
  <blockquote>
    <p>The 'ProviderPackage' package did not load correctly.    </p>
    
    <p>The problem
    may have been caused by a configuration change or by the installation
    of another extension. You can get more information by examining the
    file
    'C:\Users\xxxx\AppData\Roaming\Microsoft\VisualStudio\12.0\ActivityLog.xml'.</p>
  </blockquote>
  
  <p>In my AppData\Roaming, there is no 12.0 folder!  In AppData\Local, there is a 12.0 folder but there is no ActivityLog.xml file.</p>
  
  <p>When I ignore the message and press F5 to run, after lots of disk movement, Visual Studio simply closes and disappears.</p>
  
  <p>I have repaired a few times and the exact same behavior persists.</p>
  
  <p>When I try to run devenv.exe /setup or devenv.exe /resetuserdata, absolutely nothing happens.  No error, no process is launched, nothing.  Running devenv.exe without any parameters does launch VS.</p>
  
  <p>What can be wrong?  I hesitate to uninstall and reinstall if there is some other solution.</p>
  
  <hr>
  
  <p>1 day later: Uninstalled VS 2013 and reinstalled, and then applied Update 4.</p>
  
  <p>Problem is still the same for the MVC project: ProviderPackage did not load correctly, and when running project VS closes and disappears.  </p>
  
  <p>Last record in ActivityLog.xml says:</p>
  
  <pre><code>&lt;entry&gt;
   &lt;record&gt;1120&lt;/record&gt;
   &lt;time&gt;2015/03/17 06:38:43.882&lt;/time&gt;
   &lt;type&gt;Error&lt;/type&gt;
   &lt;source&gt;VisualStudio&lt;/source&gt;
   &lt;description&gt;An exception was thrown during package instantiation and was caught in the package manager [ProviderPackage]&lt;/description&gt;
   &lt;guid&gt;{5F2E5E42-4192-4D79-A0D8-1D881E808829}&lt;/guid&gt;
   &lt;hr&gt;8000ffff - E_UNEXPECTED&lt;/hr&gt;
   &lt;errorinfo&gt;&lt;/errorinfo&gt;
  &lt;/entry&gt;
  </code></pre>