title: VS persists requiring restart since updating NuGet packages
body: <p>I created a brand new C# Web Application from the templates and immediately updated all its NuGet packages.</p>
  
  <p>During the update process it required a restart, and afterwards, it keeps on showing this message: </p>
  
  <blockquote>
    <p>One or more packages could not be completely uninstalled:
    Newtonsoft.Json.6.0.4. Restart Visual Studio to finish uninstall.</p>
  </blockquote>
  
  <p>But the same message persists after restarting Visual Studio.</p>
  
  <p><img src="https://i.stack.imgur.com/63jiQ.png" alt="enter image description here"></p>
  
  <p>The <em>packages.config</em> file contains the following line: <code>&lt;package id="Newtonsoft.Json" version="6.0.4" targetFramework="net452" /&gt;</code>.</p>