title: Error: Cannot convert value of type 'URL' to expected argument type 'String'
body: <p>I'm having trouble converting URL to string. The <strong>getScreenShotDirectory()</strong> path is <code>file:///Users/Pat/Desktop/</code>.</p>
  
  <p>My goal is to convert it to String, so the path can look like <code>/Users/Pat/Desktop/</code></p>
  
  <pre><code>let urlString = getScreenShotDirectory()
  let pathURL = URL(string: getScreenShotDirectory())!       // error 
  </code></pre>
  
  <p>I would gladly provide more code if needed.</p>