title: Npm error- when trying to install new dependencies
body: <p>Sometimes I get the following error when using Node version 4.4.6:</p>
  
  <p><a href="https://i.stack.imgur.com/FKIdo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/FKIdo.png" alt="react-test-renderer not found, react-test-renderer is not in the npm registry"></a></p>
  
  <ul>
  <li>react-test-renderer not found, react-test-renderer is not in the npm registry</li>
  </ul>
  
  <p>Installing the latest version of Node didn't fix the issue.</p>
  
  <p>Please help me to solve this problem.</p>
  
  <p>Note: This is a Windows machine for development.</p>