無法識別的選擇器發送到實例swift。 'NSInvalidArgumentException'錯誤

class PopPop: UIViewController { 
    var quickVouch = UIView() 

    @IBAction func closePopPop (sender: UIButton) { 
     self.view.removeFromSuperview() 
    } 

    override func viewDidLoad() { 
     super.viewDidLoad() 

     self.view.backgroundColor = UIColor.black.withAlphaComponent(0.2) 

     quickVouch.frame = CGRect.init(x: 0, y: 0, width: 260, height: 300) 
     quickVouch.backgroundColor = UIColor.black 
     quickVouch.center = self.view.center 
     quickVouch.layer.cornerRadius = 0 
     quickVouch.layer.shadowOpacity = 0.0 
     quickVouch.layer.shadowOffset = CGSize(width: 0.0, height: 0.0) 
     self.view.addSubview(quickVouch) 

     let btn: UIButton = UIButton(frame: CGRect(x: 100, y: 265, width: 60, height: 30)) 
     btn.backgroundColor = UIColor.black 
     btn.setTitle("Close", for: .normal) 
     btn.addTarget(self, action: Selector(("buttonAction:")), for: UIControlEvents.touchUpInside) 
     btn.setTitleColor(UIColor.lightGray, for: .normal) 
     btn.titleLabel!.font = UIFont(name: "AvenirNextCondensed-Medium", size: 20)! 
     quickVouch.addSubview(btn) 
    }

不知道爲什麼我得到這個錯誤。當按下按鈕時，應用程序崩潰。漂亮的代碼和可能丟失的東西在這裏......無法識別的選擇器發送到實例swift。 'NSInvalidArgumentException'錯誤

func mapView(_ mapView: GMSMapView, didTapInfoWindowOf marker: GMSMarker) { 

    let PopOverViewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "PopPopID") as! PopPop 
    self.addChildViewController(PopOverViewController) 
    PopOverViewController.view.frame = CGRect(x: 0, y: -70, width: 1000, height: 1000) 
    self.view.addSubview(PopOverViewController.view) 
    PopOverViewController.didMove(toParentViewController: self) 


}

這是從主ViewController代碼。

來源

2017-01-23 JammyBugger

什麼是無法識別的選擇器的名稱？ – almas

這是說PopPop按鈕的動作。 – JammyBugger

你的代碼中有一個叫做'PopPop'的方法嗎？您是否將'PopPop'重命名爲'closePopPop'，並且沒有重新連接筆尖的插座？ – almas

我改變了這行代碼，現在一切按計劃進行！

btn.addTarget(self, action: #selector(PopPop.buttonAction(_:)), for: UIControlEvents.touchUpInside)

來源

2017-01-24 01:13:24 JammyBugger

無法識別的選擇器發送到實例swift。 'NSInvalidArgumentException'錯誤

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