Not sure how to tackle this. I am making a vocabulary app and am very new to coding. I have made sure the NavigationLink and its contents are correctly set up as well. Getting the error message at the line:

NavigationLink(destination: VocabListView(pack: vocabPack)) {

import SwiftUI

struct LiteratureTextView: View {
    let text: LiteratureText
    
    var body: some View {
        List {
            ForEach(text.subPacks) { pack in
                switch pack {
                case .vocabulary(let vocabPack):
                    NavigationLink(destination: VocabListView(pack: vocabPack)) { 
                        VocabularyPackView(pack: vocabPack)
                    }
                case .quotes(let quotePack):
                    if quotePack.name == "First Letters" {
                        NavigationLink(destination: FirstLettersListView(pack: quotePack)) {
                            VocabularyPackView(pack: quotePack)
                        }
                    } else {
                        NavigationLink(destination: QuotesListView(pack: quotePack)) {
                            VocabularyPackView(pack: quotePack)
                        }
                    }
                }
            }
        }
        .navigationTitle(text.name)
    }
}

Made sure that some identifiers are Identifiable