When CancelToken.cancel cancels the request and the request times out, StateError is thrown

[gaochang1993]

Package

dio

Version

5.4.1

Operating-System

Android

Adapter

Default Dio

Output of flutter doctor -v

[!] Flutter (Channel [user-branch], 3.19.3, on macOS 14.3.1 23D60 darwin-arm64, locale zh-Hans-CN)
    ! Flutter version 3.19.3 on channel [user-branch] at /Users/gaochang/flutter
      Currently on an unknown channel. Run `flutter channel` to switch to an official channel.
      If that doesn't fix the issue, reinstall Flutter by following instructions at https://flutter.dev/docs/get-started/install.
    ! Upstream repository unknown source is not a standard remote.
      Set environment variable "FLUTTER_GIT_URL" to unknown source to dismiss this error.
    • Framework revision ba39319843 (5 weeks ago), 2024-03-07 15:22:21 -0600
    • Engine revision 2e4ba9c6fb
    • Dart version 3.3.1
    • DevTools version 2.31.1
    • Pub download mirror https://mirrors.tuna.tsinghua.edu.cn/dart-pub
    • Flutter download mirror https://storage.flutter-io.cn
    • If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform update checks and upgrades.

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/gaochang/Library/Android/sdk
    • Platform android-34, build-tools 34.0.0
    • ANDROID_HOME = /Users/gaochang/Library/Android/sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b829.9-10027231)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 15.3)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 15E204a
    • CocoaPods version 1.13.0

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2022.3)
    • 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 17.0.6+0-17.0.6b829.9-10027231)

[✓] IntelliJ IDEA Community Edition (version 2023.1.3)
    • IntelliJ at /Applications/IntelliJ IDEA CE.app
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin version 231.9161.14
                                                                                                                                                                                                                                      [✓] Connected device (4 available)
    • ANA AN00 (mobile)          • CTN0220321020258                     • android-arm64  • Android 12 (API 31)
    • iPhone 15 Pro Max (mobile) • 61B33049-5986-4BF0-AC39-4F9422DC6A81 • ios            • com.apple.CoreSimulator.SimRuntime.iOS-17-4 (simulator)
    • macOS (desktop)            • macos                                • darwin-arm64   • macOS 14.3.1 23D60 darwin-arm64
    • Chrome (web)               • chrome                               • web-javascript • Google Chrome 123.0.6312.107

[✓] Network resources
    • All expected network resources are available.

! Doctor found issues in 1 category.

Dart Version

3.3.1

Steps to Reproduce

1.Initiate a network request that will timeout
2.cancel the request by call CancelToken.cancel()
3.wait for timeout

Expected Result

nothing happed or throw cancel exception

Actual Result

throw StateError: Bad state: Cannot add event after closing

[AlexV525]

Duplicate of #2115