404 org-dartlang-sdk:///lib/_internal/js_runtime/lib/js_helper.dart

[xclud]

I am trying to open a serial port on desktop web. When I run the app in debug mode it works perfectly. But when I run it in release/profile mode I get this error:

Could not load content for org-dartlang-sdk:///lib/_internal/js_runtime/lib/js_helper.dart (Fetch through target failed: Unsupported URL scheme; Fallback: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME)

Steps to Reproduce

git clone https://github.com/xclud/dart_serial

flutter run -d web-server --profile

Web Demo: https://xclud.github.io/dart_serial/

[huycozy]

Hi. It'll be great if you could provide us a minimal reproducible code sample that we run to verify this issue whether by flutter framework or not. And please also share the output of flutter doctor -v
Thanks.

[xclud]

@huycozy

Here is the repo: https://github.com/xclud/dart_serial

[huycozy]

Hey @xclud, pls also provide flutter doctor -v output and make sure you tried on the latest Flutter SDK so that I can verify the issue again.

FYI, as I see from your project/package, it contains pure Dart code with js package that can file in dart-lang-sdk with a completed and minimal reproducible code sample (only library part). And also there is an opening issue #39998 that you may find there useful information or further updates.

Anyway, I'd love to hear your feedback.

[xclud]

@huycozy Here is my flutter doctor output. Please give me some time to check the links you've sent. Thank you.

┌─────────────────────────────────────────────────────────┐
│ A new version of Flutter is available!                  │
│                                                         │
│ To update to the latest version, run "flutter upgrade". │
└─────────────────────────────────────────────────────────┘
[√] Flutter (Channel master, 3.1.0-0.0.pre.666, on Microsoft Windows [Version 10.0.25120.1010], locale en-US)
    • Flutter version 3.1.0-0.0.pre.666 at D:\build-tools\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 496049263e (13 days ago), 2022-05-11 23:14:11 -0700
    • Engine revision b8ca6a5e0e
    • Dart version 2.18.0 (build 2.18.0-106.0.dev)
    • DevTools version 2.13.1

Checking Android licenses is taking an unexpectedly long time...[√] Android toolchain - develop for Android devices (Android SDK version 33.0.0-rc2)
    • Android SDK at D:\build-tools\android-sdk
    • Platform android-32, build-tools 33.0.0-rc2
    • ANDROID_SDK_ROOT = D:\build-tools\android-sdk
    • Java binary at: D:\build-tools\android-studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 11.0.11+9-b60-7590822)
    • All Android licenses accepted.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Visual Studio - develop for Windows (Visual Studio Enterprise 2022 17.3.0 Preview 1.1)
    • Visual Studio at C:\Program Files\Microsoft Visual Studio\2022\Preview
    • Visual Studio Enterprise 2022 version 17.3.32519.111
    • The current Visual Studio installation is a pre-release version. It may not be supported by Flutter yet.
    • Windows 10 SDK version 10.0.19041.0

[√] Android Studio (version 2021.1)
    • Android Studio at D:\build-tools\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
    • Java version OpenJDK Runtime Environment (build 11.0.11+9-b60-7590822)

[√] VS Code (version 1.67.2)
    • VS Code at C:\Users\Mahdi\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.40.0

[√] Connected device (3 available)
    • Windows (desktop) • windows • windows-x64    • Microsoft Windows [Version 10.0.25120.1010]
    • Chrome (web)      • chrome  • web-javascript • Google Chrome 101.0.4951.67
    • Edge (web)        • edge    • web-javascript • Microsoft Edge 99.0.1150.55

[√] HTTP Host Availability
    • All required HTTP hosts are available

• No issues found!

[github-actions]

Without additional information, we are unfortunately not sure how to resolve this issue. We are therefore reluctantly going to close this bug for now.
If you find this problem please file a new issue with the same description, what happens, logs and the output of 'flutter doctor -v'. All system setups can be slightly different so it's always better to open new issues and reference the related ones.
Thanks for your contribution.

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.