崩溃：_finishDecodingLayoutGuideConnections:] 无法识别的选择器发送到实例

Posted 2023-02-26

【中文标题】崩溃：_finishDecodingLayoutGuideConnections:] 无法识别的选择器发送到实例

【英文标题】：crashing: _finishDecodingLayoutGuideConnections:] unrecognized selector sent to instance

【发布时间】：2017-09-18 02:35:12

【问题描述】：

我正在使用 X-code 9 beta Swift 4，可以运行和构建，但出现以下错误，并且只加载白屏： *** 由于未捕获的异常“NSInvalidArgumentException”而终止应用程序，原因：“-[myapp.logInVC _finishDecodingLayoutGuideConnections:]：无法识别的选择器发送到实例 0x10251ead0”

不确定 _finishDecodingLayoutGuideConnections 是什么？ 我检查了所有选择器，但没有发现问题。这是一个使用 Firebase 的登录屏幕，我希望如果登录成功，它将加载视图控制器。 任何帮助将不胜感激！

类 logInVC: UIViewController

@IBOutlet weak var signInSelector: UISegmentedControl!
@IBOutlet weak var signInLabel: UILabel!
@IBOutlet weak var emailTextField: UITextField!
@IBOutlet weak var passwordTextField: UITextField!

var isSignIn:Bool = true

override func viewDidLoad() 
    super.viewDidLoad()

    // Do any additional setup after loading the view.


override func didReceiveMemoryWarning() 
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.

@IBAction func signInSelectorChanged(_ sender: UISegmentedControl) 

    switch signInSelector.selectedSegmentIndex
    
    case 0:
        signInLabel.text = "sign in";
    case 1:
        signInLabel.text = "create account";
    default:
        break
    




@IBAction func signInButtonTapped(_ sender: UIButton) 
    if isSignIn 
        //validation
        if let email = emailTextField.text, let pass = passwordTextField.text
        
            //sign in with Firebase
            Auth.auth().signIn(withEmail: email, password: pass)  (user, error) in
                // make sure user isn't nil
                if user != nil 
                    //user is found, go to AR experience
                    self.performSegue(withIdentifier: "goToHome" , sender: self)
                
                else 
                    //error, check error and show message

                
            
        
        else 
            //register with Firebase
            Auth.auth().createUser(withEmail: emailTextField.text!, password: passwordTextField.text!)  (user, error) in
                // make sure user isn't nil
                if user != nil 
                    //user is found, go to AR experience
                    self.performSegue(withIdentifier: "goToHome" , sender: self)
                
                else 
                    //error, check error, and show message
                
            

【参考方案1】：

检查您的 IBOutlets 和 IBActions 是否正确连接。当您的 XiB 和 Class 文件设置不正确时，会发生该错误。