I am new to swiftui and am trying to use UserDefaults to persist information. I have a class which has all the arrays that i want to save the information with, but when I try to initialise the variables using UserDefaults, it prints out the "Return from initializer without initializing all stored properties" error message. Can someone explain why this is?

Here is my code:

class globalHW: ObservableObject {

    @Published var hwInput : [hw] { didSet { saveIn() } }
    @Published var hwShow : [hw] { didSet { saveShow() } }

    let hwInputKey: String = "hwInputKey"
    let hwShowKey: String = "hwShowKey"

    let defaultInput = UserDefaults.standard
    let defaultShow = UserDefaults.standard
    let encoder = JSONEncoder()

    init() {
        let decoder = JSONDecoder()

        if let savedInput = defaultInput.object(forKey: hwInputKey) as? Data {
            if let lodadedInput = try? decoder.decode([hw].self, from: savedInput) {
                print(lodadedInput)
                self.hwInput = lodadedInput
            }
        }

        if let savedShow = defaultInput.object(forKey: hwShowKey) as? Data {
            if let loadedShow = try? decoder.decode([hw].self, from: savedShow) {
                print(loadedShow)
                hwShow.self = loadedShow
            }
        }

    }

    func saveIn() {
        if let encoded = try? encoder.encode(hwInput) {
            defaultInput.set(encoded, forKey: hwInputKey)
        }
    }

    func saveShow() {
        if let encoded = try? encoder.encode(hwShow) {
            defaultShow.set(encoded, forKey: hwShowKey)
        }
    }

}