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

Paul Hudson    @twostraws    February 9th 2021

Updated for Xcode 13.0 beta 2

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 = ""
}

SPONSORED From August 2nd to 8th you can join a FREE crash course for mid/senior iOS devs who want to achieve an expert level of technical and practical skills – it’s the fast track to being a complete senior developer!

Save your spot now

Sponsor Hacking with Swift and reach the world's largest Swift community!

Similar solutions…

• How to fix “Initializer 'init(_:rowContent:)' requires that ‘SomeType’ conform to 'Identifiable’”
• How to fix “Fatal error: No ObservableObject of type SomeType found”
• How to fix “Property declares an opaque return type, but has no initializer expression from which to infer an underlying type”
• What’s the difference between @ObservedObject, @State, and @EnvironmentObject?
• What is the @ObservedObject property wrapper?