Trying to return a class type giving error-CodePudding

I am trying to return a class type in my swift code, but no matter what code I try I keep getting endless error for optional, below is my code that checks if an id is inside a class and matched with id in another class I should return that user... below is my code and CoreData relationship....

I keep getting error - in Friends section

Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value

How can I return the user that matches the friend in list ? please guide , thanks

//-----Code

import SwiftUI

struct DetailView: View {
   
    let user: CachedUser
    @State private var users = [CachedUser]()
    @State private var friends = [CachedFriend]()
    var body: some View {
        Form {
            List {
                Section("Name") {
                    Text(user.wrappedName)
                        .font(.body)
                }
                Section("email") {
                    Text(user.wrappedEmail)
                }
                Section("Registration Date") {
                    Text(user.wrappedEmail)
                }
                Section("Company") {
                    Text(user.wrappedCompany)
                }
                Section("Is Active") {
                    Image(systemName: user.isActive  ? "checkmark.circle.fill" : "xmark.octagon.fill")
                        .foregroundColor(user.isActive  ? Color.green : Color.red)
                }
                Section("Friends") {
                    ForEach(user.cachedFriend) {item in
                        NavigationLink {
                            DetailView(user: users.first(where: { itemFriend in
                                itemFriend.id == item.id
                            })! ) // <-------ERROR
                        } label: {
                            Text(item.wrappedName)
                        }
                    }
                }
 
            }
    
        }

    }
 
}

//-----

CodePudding user response：

I am not sure exactly what you are trying to do but why not have an if condition around the NavigationLink

if let friend = users.first(where: { itemFriend 
    itemFriend.id == item.id
}) {
    NavigationLink { …
    //pass friend to your view instead
}