title: Cannot use [chunkhash] or [contenthash] for chunk in '[name].[chunkhash].js' (use [hash] instead)
body: <p>I'm getting this error when trying to run <code>webpack build</code> with hashing in my config:</p>
  
  <pre><code>ERROR in chunk main [entry]
  [name].[chunkhash].js
  Cannot use [chunkhash] or [contenthash] for chunk in '[name].[chunkhash].js' 
  (use [hash] instead)
  </code></pre>
  
  <p>Webpack dev server runs fine</p>
  
  <p>What is the reason for this?</p>