The connection errored: Connection refused This indicates an error which most likely cannot be solved by the library.

[ddxl123]

Package

dio

Version

^5.4.0

Operating-System

Android

Output of flutter doctor -v

[√] Flutter (Channel stable, 3.16.3, on Microsoft Windows [Version 10.0.23601.1000], locale zh-CN)
    • Flutter version 3.16.3 on channel stable at D:\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision b0366e0a3f (2 weeks ago), 2023-12-05 19:46:39 -0800
    • Engine revision 54a7145303
    • Dart version 3.2.3
    • DevTools version 2.28.4
    • Pub download mirror https://pub.flutter-io.cn
    • Flutter download mirror https://storage.flutter-io.cn

[√] Windows Version (Installed version of Windows is version 10 or higher)

[√] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
    • Android SDK at C:\Users\LongPC\AppData\Local\Android\Sdk
    • Platform android-33, build-tools 33.0.1
    • Java binary at: D:\Android Studio\jbr\bin\java
    • Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-9505619)
    • All Android licenses accepted.

[X] Chrome - develop for the web (Cannot find Chrome executable at .\Google\Chrome\Application\chrome.exe)
    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.

[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.5.3)
    • Visual Studio at D:\Microsoft Visual Studio
    • Visual Studio Community 2022 version 17.5.33516.290
    • Windows 10 SDK version 10.0.22000.0

[√] Android Studio (version 2022.1)
    • Android Studio at D:\Android Studio
    • 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
    • android-studio-dir = D:\Android Studio
    • Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-9505619)

[√] IntelliJ IDEA Ultimate Edition (version 2022.2)
    • IntelliJ at D:\IntelliJ IDEA 2022.2.2
    • Flutter plugin version 72.1.3
    • Dart plugin version 222.4560

[√] IntelliJ IDEA Ultimate Edition (version 2023.2)
    • IntelliJ at D:\IntelliJ IDEA 2023.1.4
    • Flutter plugin version 76.3.4
    • Dart plugin version 232.8660.129

[√] Connected device (3 available)
    • M2011K2C (mobile) • 198e9c6 • android-arm64  • Android 13 (API 33)
    • Windows (desktop) • windows • windows-x64    • Microsoft Windows [Version 10.0.23601.1000]
    • Edge (web)        • edge    • web-javascript • Microsoft Edge 121.0.2277.4

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

! Doctor found issues in 1 category.
Process finished with exit code 0

Dart Version

3.2.3

Steps to Reproduce

request

Expected Result

Android emulator works normally on the computer, but when using Android phone USB connection to the computer, the following error occurs:

DioException [connection error]: The connection errored: Connection refused This indicates an error which most likely cannot be solved by the library.
Error: SocketException: Connection refused (OS Error: Connection refused, errno = 111), address = 10.11.7.118, port = 45916

Actual Result

Normal

[kuhnroyal]

The connection was refused by your server or something in between. As the error message says, this is very likely a not a problem in dio. Please share a reproducible sample otherwise and reopen the issue with the sample.

[DevIdol]

Don't use localhost, use your ip address.
To get ip address, hit enter ipconfig in cmd(in windows)

IPv4 Address 192.16.22.30
Eg:
http://192.16.22.30:8000/api/v1/

[vashukarn]

The issue can be using "http" instead of "https"