I replaced that because I try to solve it but in original version is my first post. The problem continues. Also I have class header of course.

I'm sure the problem isn't caused by this but here my custom tableview cell whole code: class customCell: UITableViewCell {               let testdetails = testdetail()          var count = 0           let cellView: UIView = {                let view = UIView()                view.backgroundColor = .white                return view            }()                        let imageOrderForCell: UIImageView = {                let iv = UIImageView()                iv.contentMode = .scaleAspectFit                iv.image = UIImage(named: "checked")                return iv            }()                        let sepetLabel: UILabel = {                let label = UILabel()                label.text = "sepetteki ürün"                label.textColor = .darkGray                label.font = UIFont(name:"Comfortaa-Bold", size: 15)                label.translatesAutoresizingMaskIntoConstraints = false                return label            }()                        let countBasketLabel: UILabel = {                let countLabel = UILabel()                countLabel.text = "x0"                countLabel.textColor = .orange                countLabel.font = UIFont(name:"Comfortaa-Bold", size: 15)                countLabel.translatesAutoresizingMaskIntoConstraints = false                return countLabel            }()                        let priceBasketLabel: UILabel = {                let pricelabel = UILabel()                pricelabel.textColor = .black                pricelabel.font = UIFont(name:"Comfortaa-Bold", size: 15)                return pricelabel            }()                        let deleteButton: UIButton = {                let button = UIButton(type: .system)                button.setImage(UIImage(named: "delete"), for: .normal)                button.tintColor = .black                button.layer.cornerRadius = 5                button.addTarget(self, action: #selector(testdetail.deleteAction(sender:)), for: .touchUpInside)                return button            }()            lazy var addButton: UIButton = {                let button = UIButton(type: .system)                button.setImage(UIImage(named: "add"), for: .normal)                button.tintColor = .black                button.layer.cornerRadius = 5                return button            }()                        override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {                super.init(style: style, reuseIdentifier: reuseIdentifier)                setup()            }                        required init?(coder aDecoder: NSCoder) {                fatalError("init(coder:) has not been implemented")            }                                    func setup() {                backgroundColor = .clear                addSubview(cellView)                cellView.addSubview(sepetLabel)                cellView.addSubview(priceBasketLabel)                cellView.addSubview(countBasketLabel)                cellView.addSubview(addButton)                cellView.addSubview(deleteButton)                                cellView.anchor(top: topAnchor, left: leftAnchor, bottom: bottomAnchor, right: rightAnchor, paddingTop: 4, paddingLeft: 8, paddingBottom: 4, paddingRight: 8, width: 40, height: 40)                                sepetLabel.anchor(top: nil, left: cellView.leftAnchor, bottom: nil, right: rightAnchor, paddingTop: 0, paddingLeft: 6, paddingBottom: 0, paddingRight: 0, width: 25, height: 25)                sepetLabel.centerYAnchor.constraint(equalTo: cellView.centerYAnchor).isActive = true                                                priceBasketLabel.anchor(top: nil, left: nil, bottom: nil, right: deleteButton.leftAnchor, paddingTop: 0, paddingLeft: 10, paddingBottom: 0, paddingRight: 20, width: 0, height: 35)                priceBasketLabel.centerYAnchor.constraint(equalTo: sepetLabel.centerYAnchor).isActive = true                                                countBasketLabel.anchor(top: nil, left: nil, bottom: nil, right: addButton.leftAnchor, paddingTop: 0, paddingLeft: 1, paddingBottom: 0, paddingRight: 1, width: 30, height: 25)                countBasketLabel.centerYAnchor.constraint(equalTo: sepetLabel.centerYAnchor).isActive = true                                                     addButton.anchor(top: nil, left: nil, bottom: nil, right: rightAnchor, paddingTop: 0, paddingLeft: 2, paddingBottom: 0, paddingRight: 8, width: 30, height: 30)                addButton.centerYAnchor.constraint(equalTo: sepetLabel.centerYAnchor).isActive = true                                deleteButton.anchor(top: nil, left: nil, bottom: nil, right: countBasketLabel.leftAnchor, paddingTop: 0, paddingLeft: 2, paddingBottom: 0, paddingRight: 8, width: 30, height: 30)                deleteButton.centerYAnchor.constraint(equalTo: sepetLabel.centerYAnchor).isActive = true            } }

addButton on the custom tableview cell. It is all working before the update Xcode. Add functions on same class but in custom cell view have button's properties.