How to fix “Scrollable Content Size Ambiguity” in Xcode 11 (iOS 12, iOS 13) using Auto Layout

Question

When using Auto Layout, I am unable to set up a simple UIScrollView in my view controller in Xcode 11 beta. I know that I must constrain the scroll view to the edges, and th

Answer 1

For me, initially the Content Layout Guides is in disabled state by default in ScrollView. So I just enabled and disabled the Content Layout Guides then the error disappeared automatically.

Answer 2

I stacked with that problem as well. Found a good guide that helped me:

https://useyourloaf.com/blog/scroll-view-layouts-with-interface-builder/

Basically what you need is 9 constraints (assuming you want to scroll only vertically):

1-4: ScrollView to Superview (top, bottom, leading, trailing). Make sure to connect it to parent view and not to safe area.

5-8: Content view to Content Layout guide (top, bottom, leading, trailing).

9. Content view Width equals width to Frame Layout Guide.