title: IntelliSense keeps giving [Failure] Could not find a part of the path C:\TEMP
body: <p>After changing my temporary folder, I got an issue with IntelliSense in VS2015 complaining it cannot find the temp folder (other applications, including VS2015, find the new location just fine).</p>
  
  <p>The error I receive after firing up a project (seems to happen with any type of solution, C#, ASP.NET etc) is repeatedly this message in the output window of Visual Studio 2015:</p>
  
  <p><a href="https://i.stack.imgur.com/DPdZP.png" rel="noreferrer"><img src="https://i.stack.imgur.com/DPdZP.png" alt="enter image description here"></a></p>
  
  <pre><code>[Failure] Could not find a part of the path 'R:\TMP\.NETFramework,Version=v4.0.AssemblyAttributes.cs'.
  [Failure] Could not find a part of the path 'R:\TMP\.NETFramework,Version=v4.0.AssemblyAttributes.cs'.
  [Failure] Could not find a part of the path 'R:\TMP\.NETFramework,Version=v4.0.AssemblyAttributes.cs'.
  [Failure] Could not find a part of the path 'R:\TMP\.NETFramework,Version=v4.0.AssemblyAttributes.cs'.
  [Failure] Could not find a part of the path 'R:\TMP\.NETFramework,Version=v4.0.AssemblyAttributes.cs'.
  [Failure] Could not find a part of the path 'R:\TMP\.NETFramework,Version=v4.0.AssemblyAttributes.cs'.
  [Failure] Could not find a part of the path 'R:\TMP\.NETFramework,Version=v4.0.AssemblyAttributes.cs'.
  </code></pre>
  
  <p>I think I replaced all rogue references to the <code>R:\TMP</code> location in the registry, but this one remains. Anyone any idea how to fix this?</p>