title: webpack-dev-middleware@1.12.2 requires a peer of webpack@^1.0.0 || ^2.0.0 || ^3.0.0 but none is installed
body: <p>I don't have webpack-dev-middleware installed in my project but when I build it using webpack it throws below warning.</p>
  
  <blockquote>
    <p>webpack-dev-middleware@1.12.2 requires a peer of webpack@^1.0.0 || ^2.0.0 || ^3.0.0 but none is installed</p>
  </blockquote>
  
  <p>Below are webpack related lib's I am using in my project.</p>
  
  <blockquote>
    <p>"webpack": "^4.15.0",
        "webpack-cli": "^3.0.8",
        "webpack-dev-server": "^3.1.4",
        "webpack-node-externals": "^1.6.0"</p>
  </blockquote>
  
  <p>Any idea how to fix this warning.</p>