title: Could not load file or assembly Telerik.Sitefinity
body: <p>having some issues upgrading my Sitefinity 4.1.1339.0 installation to 4.3 (and ultimately to Sitefinity 5).  It is giving me the following error:  </p>
  
  <blockquote>
    <blockquote>
      <p>Could not load file or assembly 'Telerik.Sitefinity, Version=4.1.1339.0, Culture=neutral, PublicKeyToken=b28c218413bdf563' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)</p>
    </blockquote>
  </blockquote>
  
  <p>I was thinking it was the /bin/Telerik.Sitefinity.dll file but everything seems to be updated in there.</p>
  
  <p>Any ideas?
  Thanks!</p>