Why does my preview show this error 'Missing argument for parameters 'SongVM' in call'

This works properly in ContentView:

struct ContentView: View {
    @EnvironmentObject var model: SongViewModel

    var body: some View {
        NavigationView {
            List(model.songs) { song in
                NavigationLink(destination: DetailView(song: song)) {
                    songRow(song: song)
                }
                .listStyle(.plain)
            }
            .navigationBarHidden(true)
        }
    }
}

I tried that but mine still fails to work it says cannot preview

Here is a dropbox link to the entire project as of a few moments ago.

I will be away for a little while. I have a few things to do.

The playback controls aren’t showing now and I cannot find a solution I will keep trying though.

Are you still here?

Yup, what’s going on?

The playback control’s aren’t showing for some reason. The rest is working well now though. Still can’t find a solution to why the playback controls aren’t showing.