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How to fix “Referencing initializer 'init(wrappedValue:)' on 'ObservedObject' requires that ‘SomeType’ conform to 'ObservableObject'"

Paul Hudson    @twostraws   

Fully updated for Xcode 11.4

This error happens because you’re trying to use the @ObservedObject property wrapper on a type that doesn’t conform to the ObservableObject protocol.

For example, you have a type like this:

class User {
    @Published var name = ""
}

And you use it in a view like this:

struct ContentView: View {
    @ObservedObject var user = User()

    var body: some View {
        Text(user.name)
    }
}

To fix the problem, simply add the ObservableObject conformance to your type, like this:

class User: ObservableObject {
    @Published var name = ""
}
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