title: Need constraints for: Y position or height, Scrollview including Imageview
body: <p>It gives me the following warning: Need constraints for: Y Position or height. I can get it working with for example TextView, by disabling "Enable Scrolling" but ImageView does not have a setting for something like that. I've also tried selecting my view controller and enabling/disabling "Adjust Scroll View Insets" which gives no results. </p>
  
  <p><strong>EDIT</strong> Image of my hierarchy. <a href="https://i.stack.imgur.com/P1FH7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/P1FH7.png" alt="enter image description here"></a></p>