title: Receiving access denied error from Visual Studio when trying to change target framework
body: <p>The error reads,</p>
  
  <blockquote>
    <p>TargetFrameworkMoniker: An error occurred saving the project file
    'yadayada.csproj'. Access is denied.</p>
  </blockquote>
  
  <p>I'm trying to switch from .net 3.5 to .net 4.0 or higher.</p>
  
  <p>The project is hooked into TFS in Visual Studio 2010 (also tried VS 2013, same error). I'm in a VM environment.</p>
  
  <p>Any clues about this error? Google returns very little information. It seems like I have proper access to the file, but how is VS accessing it?</p>