UIView title causing constraints problem XIB Xcode

Question

I have one UITabBarController that has 5x child UIViewControllers, each of which is a UINavigationViewController.

For a UIView in any of the UINavigationControllers, If I set the title in viewDidLoad via

self.title=@"TITLE";

Then I get the following unsatisfied constraint error

2020-05-28 14:21:23.055778+0100 Datum Connect[6515:10336196] [LayoutConstraints] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. 
Try this: 
    (1) look at each constraint and try to figure out which you don't expect; 
    (2) find the code that added the unwanted constraint or constraints and fix it. 

( "= UILayoutGuide:0x600001968540'TitleView(0x7fa0a710a390)'.top (active)>", "" )

There are no constraints set up in my XIB. This is fairly old (~2013) code so there's probably a deprecation issue somewhere with the autogenerated layouts...?

But if I use

self.tabBarController.navigationItem.title = @"TITLE";
or
self.navigationController.navigationItem.title=@"TITLE";
or
self.navigationController.title=@"TITLE";

There is no the constraints problem, but the TITLE text doesn't appear either, just the empty nav bar.

Answer 1

Im not sure about your issue but if the view has no constraints then there will be no warnings.

Try to add this

translatesAutoresizingMaskIntoConstraints = NO;

to your view.