错误“This application is modifying the autolayout engine from a background thread” — 如何修复？

大家好！我是 Swift 和 macOS 开发的新手。遇到了一个奇怪的错误，它并不总是出现，只有当应用程序执行某个耗时操作时才会出现。控制台输出消息： ``` This application is modifying the autolayout engine from a background thread after the engine was accessed from the main thread. This can lead to engine corruption and weird crashes. ``` 我有一个简单的例子：我在后台线程中从互联网加载数据，完成后想更新屏幕上的 `NSTextField`。这是我的代码： ```swift import Cocoa class ViewController: NSViewController { @IBOutlet weak var statusLabel: NSTextField! override func viewDidLoad() { super.viewDidLoad() // 模拟长时间加载 DispatchQueue.global().async { self.loadData() } } func loadData() { // 模拟加载 Thread.sleep(forTimeInterval: 2.0) let result = "数据