Unable to set a custom class for UITabBarController

Question

I am following an intro to Swift guide and have an issue with one of the practical examples. I'm not able to set the custom class for a UITabBar via the dropdown on the storyboard.

I have other blank scenes that I can change to the custom class that I want. Just not the UITabBar . The other instances where a similar question to this was asked, don't resolve my issue.

For reference I have "ViewController" and "SecondViewController" files which can be referenced in these other scenes. I am using Xcode 11.

Also below is the example I am trying to work from:

And here is my project:

Answer 1

You have not created any SecondViewController class.

Go to File-> New -> File -> Cocoa Touch Class -> Name of Class and tap create.

Answer 2

Go to Xcode > File > New File and then create a SecondViewController subclass of UITabBarController then assign in to TabBar controller in storyboard