title: Error in self-hosting service stack webservice in F#
body: <p>I am creating service using servicestack. I have copied self-hosting code from <a href="https://github.com/ServiceStack/ServiceStack/wiki/Self-hosting" rel="nofollow noreferrer">github Wiki- servicestack</a>. PFB code which i have written .</p>
  
  <p><a href="https://i.stack.imgur.com/rVU5C.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rVU5C.png" alt="enter image description here"></a></p>
  
  <p>And I am getting below error.
   Please let me know what is error in this.</p>
  
  <p><a href="https://i.stack.imgur.com/3aphW.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3aphW.png" alt="enter image description here"></a></p>