title: How to install webpack-cli?
body: <p>I have installed webpack 4.5.0. </p>
  
  <p>When I try to run webpack, it complains that it wants webpack-cli. </p>
  
  <p>If I run <code>npm install webpack-cli</code> I get the following error: </p>
  
  <pre><code>The CLI moved into a separate package: webpack-cli
  Would you like to install webpack-cli? (That will run npm install -D webpack-cli) (yes/NO)yes
  npm WARN deprecated nomnom@1.8.1: Package no longer supported. Contact support@npmjs.com for more info.
  npm WARN webpack-cli@2.0.14 requires a peer of webpack@^4.0.0 but none is installed. You must install peer dependencies yourself.
  
  + webpack-cli@2.0.14
  updated 1 package in 14.175s
  { Error: Cannot find module 'webpack-cli'
      at Function.Module._resolveFilename (module.js:543:15)
      at Function.Module._load (module.js:470:25)
      at Module.require (module.js:593:17)
      at require (internal/module.js:11:18)
      at runCommand.then.result (/usr/local/lib/node_modules/webpack/bin/webpack.js:62:14)
      at &lt;anonymous&gt;
  at process._tickCallback (internal/process/next_tick.js:118:7) code: 'MODULE_NOT_FOUND' }
  </code></pre>
  
  <p>Anybody has seen this and fixed it somehow?</p>