The chapter has a section called “Setting up your project” where it explains to create a brand new SwiftUI project.
After the initial setup instructions, it says to: " Now, open Persistence.swift and add the following line at the end…" - there is no such file called Persistence.swift since this is a new project.
Then about a paragraph later, it says, “To ensure there are no build errors and that the app launches, build and run in a simulator or a device.” but the project does not build due to some changes requested in the ContentView.swift file that causes errors: 1) Cannot find ‘items’ in scope, 2) Cannot find ‘deleteItems’ in scope, and 3) Cannot find ‘addItem’ in scope.
Instructions do not state where these properties or methods come from.