A popup, "Failed to automatically update constraints" pops up in Xcode 6.3.1

Question

When I added a couple of controls in my viewcontroller in storyboard and click Resolve Auto Layout Issues -> Reset to Suggested Constraints. The following popup appears and I cannot perform auto layout constraints.

Though, when I remove the Prototype Cell (which has a couple of labels and an imageview) from my tableview then auto layout works fine. Any thoughts?

Edited: And manually adding constraints to individual elements work fine as well. After manually setting the image view inside prototype cell, the auto layout has started working fine without popping up that popup. So, maybe, sometime, it is hard for auto layout to figure out all these constraints itself.

Answer 1

Try clearing constraints before resetting them, this has worked for me before.

Answer 2

I had the same problem when using prototype cells in a UITableView and some other views in a UIViewController.

My solution was to select all the elements in the prototype cell and see if these had red or orange markers (constraint conflicts/problems). These elements I cleared the constraints for and afterwards I had no problem telling the entire view to "Reset to Suggested Constraints".

Obviously, Interface Builder has a problem resetting embedded table content constraints.