iPhone模拟器无法启动

iPhone模拟器无法启动？

sudo xcode-select --reset
xcrun simctl erase all

swift
import UIKit
class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        // 创建一个标签
        let label = UILabel(frame: CGRect(x: 0, y: 0, width: 200, height: 50))
        label.text = "欢迎使用iPhone模拟器"
        label.textAlignment = .center
        label.center = view.center
        // 将标签添加到视图中
        view.addSubview(label)
    }
}