title: Remove webpack-dev-sever 1.14.1 and install 1.14.0
body: <p>I want to know how to remove webpack-dev-server 1.14.1 and install 1.14.0 in Ubuntu in commands only. </p>
  
  <pre><code>Uncaught TypeError: Cannot read property 'replace' of null
  at eval (eval at globalEval (jquery-2.1.4.min.js:2), &lt;anonymous&gt;:34:37)
  at Function.each (jquery-2.1.4.min.js:2)
  at Object.success (eval at globalEval (jquery-2.1.4.min.js:2), &lt;anonymous&gt;:21:10)
  at j (jquery-2.1.4.min.js:2)
  at Object.fireWith [as resolveWith] (jquery-2.1.4.min.js:2)
  at x (jquery-2.1.4.min.js:4)
  at XMLHttpRequest.&lt;anonymous&gt; (jquery-2.1.4.min.js:4)
  </code></pre>
  
  <p>Is it okay to downgrade it?</p>