I have resolved the errors, so all I need to do is work out where the iPhone side bit goes, and how to send local notifications... Also, I need to send a URL from the iPhone to the watch, so how can I do this too?

I'm also getting these errors now

does @Claude31's iPhone side bit just go into ContentView.swift, or does it have to be called from a separate file? Also, how do I add notification popup thing asking for permission when the app is opened?

Is that for a storyboard app, because I am just using Swift/SwiftUI?