title: Use of undeclared type UITextfield
body: <p>I am getting the following error:</p>
  
  <blockquote>
    <p>Use of undeclared type <code>UITextfield</code></p>
  </blockquote>
  
  <p>on <code>@IBOutlet weak var textField: UITextfield!</code></p>
  
  <p>I have imported UIKit framework at the top </p>