When building my application, I get semantic warnings similar to the following:

'NSLayoutYAxisAnchor' is only available on iOS 9.0 or newer
'NSLayoutYAxisAnchor' is only available on iOS 9.0 or newer

Is it possible to get rid of these warning messages? There's 24 of them every time I compile my application. I set my build target to iOS 9.0 -- not sure why this is happening.