Ios 该类可以在源代码或未链接的库中定义

我在

AppDelegate

上设置了MLSData，如下所示

func getMLSBoards() {
    Service.shared.getMlsBoards(completion: { (mlsResponse) in

        if mlsResponse?.respCode == Code.success.rawValue {
            Defaults.shared.setMLSBoards((mlsResponse?.data?.mlsBoard)!, forKey: Default.mlsBoards)

            for mlsBoard in (mlsResponse?.data?.mlsBoard)! {
                if mlsBoard.id == 1 {
                    Defaults.shared.setInt(mlsBoard.id!, forKey: Constants.kProviderID)
                    Defaults.shared.setString(mlsBoard.title!, forKey: Constants.kProviderValue)
                    Defaults.shared.setMLSBoard(mlsBoard, forKey: Default.mlsBoard)
                }
            }

            NotificationCenter.default.post(name: NSNotification.Name.init(Notifications.nReceivedMetadata), object: nil)
        }
    })
}

我想在我的iMessage应用程序上获取MLSData

let mlsBoard = Defaults.shared.getMLSBoards(forKey: Default.mlsBoards)

但我的应用程序因此消息而崩溃

由于未捕获异常而终止应用程序 'NSInvalidUnarchiveOperationException'，原因：'*** -[NSKeyedUnarchiver decodeObjectForKey:]：无法为键（NS.objects）解码类（Sarnail.MlsBoard）的对象；这个班可能是 在源代码或未链接的库中定义'

我也试过这个

NSKeyedArchiver.setClassName("Employee", forClass: Employee.self)
NSKeyedUnarchiver.setClass(Employee.self, for: "Employee")

但这对我不起作用

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有人请帮帮我

让mlsBoard=Defaults.shared.getMLSBoards（forKey:Default.mlsBoards）在这一行之前通过断点检查“Default.mlsBoards”中有什么