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Cannot open dev tools in flutter web --profile #3969
Description
I'm trying to open dev tools for my flutter web profile to inspect performance,memory logs etc .But i don't know why it's not opening
- Why can't I open dart dev tools in flutter web profile mode?
- if can't open dev tools in web (profile mode) how to test performance and memory logs?
flutter doctor -v
[√] Flutter (Channel stable, 2.10.0, on Microsoft Windows [Version 10.0.19043.1586], locale en-IN)
• Flutter version 2.10.0 at D:\OTHER FILES D\CS ALL FOLD\Flutter main sdk\flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 5f105a6ca7 (9 weeks ago), 2022-02-01 14:15:42 -0800
• Engine revision 776efd2034
• Dart version 2.16.0
• DevTools version 2.9.2
[√] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
• Android SDK at D:\Android_SDK
• Platform android-31, build-tools 31.0.0
• ANDROID_HOME = D:\Android_SDK
• Java binary at: D:\Android studio main\jre\bin\java
• Java version OpenJDK Runtime Environment (build 11.0.10+0-b96-7249189)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
[X] Visual Studio - develop for Windows
X Visual Studio not installed; this is necessary for Windows development.
Download at https://visualstudio.microsoft.com/downloads/.
Please install the "Desktop development with C++" workload, including all of its default components
[√] Android Studio (version 2020.3)
• Android Studio at D:\Android studio main
• 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 11.0.10+0-b96-7249189)
[√] VS Code (version 1.64.1)
• VS Code at C:\Users\bhara\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.38.1
[√] Connected device (3 available)
• Windows (desktop) • windows • windows-x64 • Microsoft Windows [Version 10.0.19043.1586]
• Chrome (web) • chrome • web-javascript • Google Chrome 100.0.4896.75
• Edge (web) • edge • web-javascript • Microsoft Edge 99.0.1150.46
[√] HTTP Host Availability
• All required HTTP hosts are available
! Doctor found issues in 1 category.
Activity
kenzieschmoll commentedon Apr 11, 2022
The 'v' hotkey is not working to open Flutter DevTools for a web profile build. It does work to open DevTools for a debug web build.
naveenbharadwaj19 commentedon Apr 11, 2022
@kenzieschmoll yes just widget inspector. But how do i check for performance , memory overflow ?
elliette commentedon Apr 11, 2022
Flutter DevTools isn't supported for Flutter Web apps running in profile mode.
However, I am able to reproduce showing it as an option if I run:
flutter run --profile -d chromehto show all hot keysv Open Flutter DevToolsis the only option shownFurthermore, the documentation at https://docs.flutter.dev/testing/build-modes#profile makes it sound like it should be an option.
AIs:
Note: It might make sense to support this as part of the project to add App Size analysis for dart2js applications.