如何在Swift编程中修复NSInternalInconsistencyException

我正在创建一个新的应用程序，并且要放在一个隐藏的文件夹中。可通过人脸ID /触摸ID进行访问。我已经实现了代码，但是当我运行应用程序并使用Face ID时。应用程序崩溃并显示错误“ NSInternalInconsistencyException”

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Modifications to the layout engine must not be performed from a background thread after it has been accessed from the main thread.

在我的Viewcontroller中，将视图设置为：

override func viewDidLoad() {
    super.viewDidLoad()


    let cornerRadius : CGFloat = 10.0
    containerView.layer.cornerRadius = cornerRadius
    tableView.clipsToBounds = true
    tableView.layer.cornerRadius = 10.0


    // 1
    let context = LAContext()
    var error: NSError?

    // 2
    // check if Touch ID is available
    if context.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: &error) {
        // 3
        let reason = "Authenticate with Biometrics"
        context.evaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, localizedReason: reason, reply: {(success, error) in
            // 4
            if success {
                self.showAlertController("Biometrics Authentication Succeeded")
            } else {
                self.showAlertController("Biometrics Authentication Failed")
                }
           })
     }
     // 5
     else {
         showAlertController("Biometrics not available")
    }
}

我希望Face ID / Touch ID能够按预期工作，并且如果经过验证不会崩溃。