unrecognized selector sent to instance...のエラーを消せないです

以下のコードをカスタムクラスに書いて、InterFaceBuilderでtextFieldのCustom Classにそのクラス名(PickerText)を指定してシュミレータを起動しました。決定ボタン(UIBarButtonItem)を押したところ、unrecognized selector sent to instance 0x7fe24e407e10というエラーが出ました。Custom Class名や#selecterを確認しましたが合っている様です。この解決方法をご教授ください。

Swift
1import Foundation
2import UIKit
3
4class PickerText: UITextField {
5
6     var datePicker: UIDatePicker!
7
8    required init?(coder: NSCoder) {
9        super.init(coder: coder)
10        commoninit()
11    }
12    override init(frame: CGRect) {
13        super.init(frame: frame)
14        commoninit()
15    }
16
17     func commoninit(){
18
19        datePicker = UIDatePicker()
20        datePicker.date = Date()
21        datePicker.datePickerMode = .date
22        datePicker.locale = Locale(identifier: "ja")
23        datePicker.addTarget(self, action: #selector(setText), for: .valueChanged)
24        setText()
25
26        inputView = datePicker
27        inputAccessoryView = createToolbar()
28
29    }
30
31
32    func createToolbar() -> UIToolbar {
33        let toolbar = UIToolbar()
34        toolbar.frame = CGRect(x: 0, y: 0, width: self.frame.width, height: 44)
35
36        let space = UIBarButtonItem(barButtonSystemItem: .fixedSpace, target: self, action: nil)
37        space.width = 12
38        let flexSpaceItem = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: self, action: nil)
39        let todayButtonItem = UIBarButtonItem(title: "今日", style: .done, target: self, action: #selector(todayPicker))
40        let doneButtonItem = UIBarButtonItem(title: "決定", style: .done, target: self, action: #selector(donePicker))
41
42        let toolbarItems = [space, flexSpaceItem, todayButtonItem, doneButtonItem]
43        toolbar.setItems(toolbarItems, animated: true)
44
45        return toolbar
46    }
47
48    @objc  func todayPicker() {
49        datePicker.date = Date()
50        setText()
51    }
52
53    @objc private func donePicker() {
54       setText() 
55       self.endEditing(true)
56    }
57
58       @objc func setText(){
59        let f = DateFormatter()
60        f.calendar = Calendar(identifier: .japanese)
61        f.dateStyle = .long
62        f.locale = Locale(identifier: "ja")
63        text = f.string(from: datePicker.date)
64
65       }
66
67
68    override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
69        return false
70    }
71
72    override func selectionRects(for range: UITextRange) -> [UITextSelectionRect] {
73        return []
74    }
75
76    override func caretRect(for position: UITextPosition) -> CGRect {
77        return CGRect(x: 0, y: 0, width: 0, height:0)
78    }
79
80}