Version 5.8.0+1 Fails to Run on Flutter Web

[Bartozo]

Package

dio

Version

5.8.0+1

Operating-System

MacOS

Adapter

Default Dio

Output of flutter doctor -v

[✓] Flutter (Channel stable, 3.27.1, on macOS 15.3 24D60 darwin-arm64, locale en-US)
    • Flutter version 3.27.1 on channel stable at /Users/bartoszkrol/fvm/versions/3.27.1
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 17025dd882 (7 weeks ago), 2024-12-17 03:23:09 +0900
    • Engine revision cb4b5fff73
    • Dart version 3.6.0
    • DevTools version 2.40.2

[✗] Android toolchain - develop for Android devices
    ✗ Unable to locate Android SDK.
      Install Android Studio from: https://developer.android.com/studio/index.html
      On first launch it will assist you in installing the Android SDK components.
      (or visit https://flutter.dev/to/macos-android-setup for detailed instructions).
      If the Android SDK has been installed to a custom location, please use
      `flutter config --android-sdk` to update to that location.


[!] Xcode - develop for iOS and macOS (Xcode 16.2)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 16C5032a
    ✗ CocoaPods not installed.
        CocoaPods is a package manager for iOS or macOS platform code.
        Without CocoaPods, plugins will not work on iOS or macOS.
        For more info, see https://flutter.dev/to/platform-plugins
      For installation instructions, see https://guides.cocoapods.org/using/getting-started.html#installation

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

[!] Android Studio (not installed)
    • Android Studio not found; download from https://developer.android.com/studio/index.html
      (or visit https://flutter.dev/to/macos-android-setup for detailed instructions).

[✓] IntelliJ IDEA Community Edition (version 2024.2.4)
    • IntelliJ at /Applications/IntelliJ IDEA CE.app
    • Flutter plugin version 83.0.3
    • Dart plugin version 242.24931

[✓] Connected device (1 available)
    • Chrome (web)

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

! Doctor found issues in 3 categories.

Dart Version

3.6.0

Steps to Reproduce

1. Import the latest version of the dio package in pubspec.yaml.
2. Use dio in your Dart/Flutter project.
3. Run the app on Flutter Web.

Expected Result

The application should compile and run correctly on the web platform.

Actual Result

The console shows an error 👇

../../.pub-cache/hosted/pub.dev/dio_web_adapter-2.0.0/lib/src/dio_impl.dart:18:20: Error: The method 'DioForBrowser.download' has fewer named arguments than those of overridden method 'Object with DioMixin.download'. Future<Response> download( ^ ../../.pub-cache/hosted/pub.dev/dio_web_adapter-2.0.0/lib/src/dio_impl.dart:9:7: Context: This is the overridden method ('download'). class DioForBrowser with DioMixin implements Dio { ^ ../../.pub-cache/hosted/pub.dev/dio_web_adapter-2.0.0/lib/src/dio_impl.dart:18:20: Error: The method 'DioForBrowser.download' doesn't have the named parameter 'fileAccessMode' of overridden method 'Object with DioMixin.download'. Future<Response> download( ^ ../../.pub-cache/hosted/pub.dev/dio_web_adapter-2.0.0/lib/src/dio_impl.dart:9:7: Context: This is the overridden method ('download'). class DioForBrowser with DioMixin implements Dio { ^ ../../.pub-cache/hosted/pub.dev/dio_web_adapter-2.0.0/lib/src/dio_impl.dart:18:20: Error: The method 'DioForBrowser.download' has fewer named arguments than those of overridden method 'Dio.download'. Future<Response> download( ^ ../../.pub-cache/hosted/pub.dev/dio-5.8.0+1/lib/src/dio.dart:241:20: Context: This is the overridden method ('download'). Future<Response> download( ^ ../../.pub-cache/hosted/pub.dev/dio_web_adapter-2.0.0/lib/src/dio_impl.dart:18:20: Error: The method 'DioForBrowser.download' doesn't have the named parameter 'fileAccessMode' of overridden method 'Dio.download'. Future<Response> download( ^ ../../.pub-cache/hosted/pub.dev/dio-5.8.0+1/lib/src/dio.dart:241:20: Context: This is the overridden method ('download'). Future<Response> download( ^

[AlexV525]

Please run flutter pub upgrade.

[EArminjon]

To complete the solution : just delete pubspec.lock if you already upgraded and still have this issue.