Flutter：SocketException：macOS Big Sur 中的连接失败

如何解决Flutter：SocketException：macOS Big Sur 中的连接失败

最近我将我的 macOS 升级到了 macOS Big Sur (11.3.1)。现有的 Flutter 项目无法仅在 iOS 模拟器上调用 API。它因以下异常而失败

Flutter: dioError [dioErrorType.DEFAULT]: SocketException: Connection Failed,address = xyz.com,port = 443

注意：它在 Android 模拟器上运行良好。

颤动医生 -v

Flutter (Channel stable,2.0.6,on macOS 11.3.1 20E241 darwin-x64,locale en-GB)
    • Flutter version 2.0.6 at /Applications/Flutter
    • Framework revision 1d9032c7e1 (4 weeks ago),2021-04-29 17:37:58 -0700
    • Engine revision 05e680e202
    • Dart version 2.12.3

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
    • Android SDK at /Users/tapaspal/Library/Android/sdk
    • Platform android-30,build-tools 29.0.3
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6916264)

[✓] Xcode - develop for iOS and macOS
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 12.5,Build version 12E262
    • CocoaPods version 1.10.1

[✓] Android Studio (version 4.2)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      ? https://plugins.jetbrains.com/plugin/9212-Flutter
    • Dart plugin can be installed from:
      ? https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6916264)


[✓] VS Code (version 1.56.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.22.0

[✓] Connected device (2 available)
    • iPhone 12 Pro Max (mobile) • 69EBCB08-856A-4260-B2FE-121E4DFBC26A • ios            • com.apple.CoreSimulator.SimRuntime.iOS-14-5
      (simulator)
    • Chrome (web)               • chrome                               • web-javascript • Google Chrome 90.0.4430.212 

• No issues found!