title: Bootstrap requires non-existing version of popper
body: <p>My package.json contains:</p>
  <pre><code> &quot;dependencies&quot;: {
      &quot;popper&quot;: &quot;^1.0.1&quot;,
      &quot;bootstrap&quot;: &quot;^4.1.0&quot;,
  </code></pre>
  <p>on install the warning is:</p>
  <blockquote>
  <p>bootstrap@4.1.0 requires a peer of popper.js@^1.14.0</p>
  </blockquote>
  <p>however the <a href="https://www.npmjs.com/package/popper" rel="noreferrer">&quot;latest&quot; version of popper.js</a> is 1.0.1</p>
  <p>wtf?!? are there two different 'flavors' of popper?</p>