environment ・MacOS: 10.15.7 ・Xcode: 12.1 ・iOS: 14.1 I'm trying to make a paint app But I cannot show PKToolPicker. I set my code as below. import UIKit import PencilKit class ViewController: UIViewController {     override func viewDidLoad() {         super.viewDidLoad()         // Do any additional setup after loading the view.         // Three Lines of Code ここに3行のコードを足す         let canvas = PKCanvasView(frame: view.frame)         view.addSubview(canvas)         canvas.tool = PKInkingTool(.pen, color: .black, width: 30)                  canvas.drawingPolicy = .anyInput          //PKToolPicker: ドラッグして移動できるツールパレット (ペンや色などを選択できるツール)         if let window = UIApplication.shared.windows.first {             if let toolPicker = PKToolPicker.shared(for: window) {                 toolPicker.addObserver(canvas)                 toolPicker.setVisible(true, forFirstResponder: canvas)                 canvas.becomeFirstResponder()             }         }     } } Line 37　I get a warning here↓ 'shared(for:)' was deprecated in iOS 14.0: Create individual instances instead. So I changed it like this         let toolPicker = PKToolPicker.init()         toolPicker.addObserver(canvas)         toolPicker.setVisible(true, forFirstResponder: canvas)         canvas.becomeFirstResponder() But I did not succeed. What should i do in this case？