title: Magento2 not auto generate static files
body: <p>i've some issues with auto generating static files in <code>pub/static</code> folder</p>
  
  <p>after use <code>magento setup:static-content:deploy</code> if i delete some static file generated by deploy like css and i point to the url like:</p>
  
  <pre><code>&lt;my_domain&gt;/pub/static/frontend/&lt;my_module&gt;/&lt;my_theme&gt;/en_US/css/theme.css
  </code></pre>
  
  <p>magento2 not auto generated it anymore... i need some tips!</p>
  
  <ul>
  <li>i'm in developer mode</li>
  <li>i've clear <code>var/cache</code> and <code>var/view_preprocessed</code> folders</li>
  <li>i've flushed magento2 cache</li>
  <li>i've set Server side less compilation</li>
  <li>if i use magento setup:static-content:deploy all works perfectly!</li>
  <li>had same issues on windows and unix environment</li>
  </ul>