我正在尝试按照网页中提供的说明运行 flutter 集成测试：https : //flutter.dev/docs/cookbook/testing/integration/introduction 但是当尝试使用 iOS 设备执行时，它总是因 flutterdriver 而失败超时，但如果我使用 android 设备执行同一段代码，它会成功运行。
执行的命令是：
flutter driver --target=test_driver/app.dart
并且（仅在 iOS 中），显示的错误如下：
...
flutter: Observatory listening on http://127.0.0.1:49605/Jh_J7boSKBk=/
Installing and launching... 22.5s
[info ] FlutterDriver: Connecting to Flutter application at http://127.0.0.1:1043/Jh_J7boSKBk=/
[trace] FlutterDriver: Isolate found with number: 589047572
[trace] FlutterDriver: Isolate is paused at start.
[trace] FlutterDriver: Attempting to resume isolate
[trace] FlutterDriver: Waiting for service extension
flutter: main dev
[warning] FlutterDriver: Flutter Driver extension is taking a long time to become …