title: NPM Cannot read property '0' of undefined
body: <p>After updated Node (upto v8.6.0) and npm (upto v5.5.1) I cannot execute command <code>npm install</code>.
  After npm install I've error message:</p>
  
  <pre><code>npm ERR! Cannot read property '0' of undefined
  </code></pre>
  
  <p>What's trouble or I need downgrade node/npm ?</p>