Detected a case where constraints ambiguously suggest a height of zero

Question

After updating to Xcode 6.1 beta 2 when I run my app that contains tableview cells, the debug assistant says:

Warning once only: Detected a case where constr         


        

Answer 1

This is an autolayout issue. Make sure that your subviews have all the constraints. For me, the bottom constraint was missing for the Title Label in the cell. When I added that, the warning went away and everything showed up perfectly.