Xcode11/iOS uicollection view issue

Question

Xcode11/ iOS13 collectioncview not working but xcode11/iOS12 is working fine and Xcode10/iOS13 working fine.

issues is,

"The behavior of the UICollectionViewFlowLayout is not defined because: 
> 2019-10-29 10:55:17.781597+0530 Storefront[360:20094] the item width must be less than the width of the UICollectionView minus the section insets left and right values, minus the content insets left and right values"

I don't where it is exactly occurred.

Answer 1

Xcode11/ iOS13

I had issues with this error message as well. My CollectionViewCells were all messed up.

Go into the Interface Builder. Then navigate to the Size Inspector (for the CollectionView) and set the Estimated Size to "none".