title: Unresolved function or method in WebStorm 2017.2
body: <p>I am trying out WebStorm but am getting annoying errors regarding unresolved function or method for both Express and core node methods.</p>
  
  <p>I have enabled the Node.js core library and invalidated cache/restarted.  Please see attached screenshot. Does anyone know how to make those incorrect error messages go away?</p>
  
  <p><a href="https://i.stack.imgur.com/XTDqY.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/XTDqY.png" alt="enter image description here"></a></p>