I’m reading the app development guide you produced, and while I am learning a great deal from your book I have hit a roadblock in the Photorama - Core Data section on page 357. After moving photo.swift to trash, it says to create a new file - and under the iOS section, select Core Data (and a few other steps). Is this changed in a recent xCode update? Core Data is a subheading but it is not an option for a template file.
Any guidance someone can give here would be very appreciated.