title: webpack-dev-server : command not found
body: <p><a href="http://i.stack.imgur.com/nY4d4.png" rel="nofollow">Webpack-dev-server:command not found in webpack used all global and local installations</a></p>
  
  <pre class="lang-js prettyprint-override"><code>{
    "devDependencies": {
      "babel-loader": "^6.2.4",
      "babel-preset-es2015": "^6.9.0",
      "webpack": "^1.13.1",
      "webpack-dev-server": "^1.14.1"
    }
  }
  </code></pre>