When I build my app Xcode gives me five warnings relating to missing constraints. But clicking on them in the Navigation Panel only takes me to a ViewController in the Storyboard and doesn't highlight which view has the problem.

In addition, as shown above, the Storyboard doesn't contain any yellow triangles at all, so I'm at a loss as to how to find which view is missing the constraints.

The errors don't appear when I run the app, so how to I try to trap these errors in the build?

(Xcode 14.2)

CodePudding user response：

Xcode and Storyboards have lots of bugs...

One that you're encountering is the failure to show error/warning indicators.

This is how it should look:

Clicking that indicator will show you the specific warnings - and hovering over one shows you the view in question:

However, those indictors and descriptions are sometimes missing. Seems to happen most often when you have multiple view controllers in a single Storyboard.

You could copy each controller to a new Storyboard to see if the information shows up - but, based on my experience, it's hit-or-miss.

In your specific case, warnings such as:

Leading constraint is missing, which may cause overlapping with other views.

can be safely ignored... provided you know and understand the layout you've designed.