What settings to disable to make it fast again?
I'm using VSCode for flutter development. Now very slow when starting the app and during hot reload. Now almost impossible to perform hot reload. I must stop it, do changes then start rather than waiting on hot reload process.
Before update, it was fast but sometimes crash.
I only use Dart 2.21.1 and Flutter 2.21.1 extension. And running on Windows 10.
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The issue seems gone away.
Now I'm using VS Code 1.31.1
flutter --version
Flutter 1.1.8 • channel beta • https://github.com/flutter/flutter.git
Framework • revision 985ccb6d14 (8 weeks ago) • 2019-01-08 13:45:55 -0800
Engine • revision 7112b72cc2
Tools • Dart 2.1.1 (build 2.1.1-dev.0.1 ec86471ccc)
And Dart/Flutter extension is 2.24.0
In your folder, run
flutter clean
this will delete all flutter dependencies and then re-create the project again by using
flutter create YourProjectName
this will create all the flutter dependencies again in your current project, you will not loose your files
The issue seems gone away.
Now I'm using VS Code 1.31.1
flutter --version
Flutter 1.1.8 • channel beta • https://github.com/flutter/flutter.git
Framework • revision 985ccb6d14 (8 weeks ago) • 2019-01-08 13:45:55 -0800
Engine • revision 7112b72cc2
Tools • Dart 2.1.1 (build 2.1.1-dev.0.1 ec86471ccc)
And Dart/Flutter extension is 2.24.0
Related
I'm debugging a code but every time I try to see the variable values it shows this message. does anyone know how to resolve?
Flutter 3.3.10 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 135454af32 (5 weeks ago) • 2022-12-15 07:36:55 -0800
Engine • revision 3316dd8728
Tools • Dart 2.18.6 • DevTools 2.15.0
google chrome version 109.0.5414.75 64 bit
I searched the internet and it was telling me to update flutter to a version greater than 3.0 and google chrome to the newest version and even so it continues to give this error. I tried to run the project in another browser but the same error message appears. in short, none of the solutions I've found to date allowed. I even formatted the computer and today I have Windows 11
I am new to flutter and Xcode, I got a new MacBook pro m1 max and I have a problem with my Xcode build when I try to launch my flutter application, flutter doctor gives me this error:
[!] Flutter (Channel stable, 3.3.8, on macOS 13.0.1 22A400 darwin-arm, locale en-FR)
• Flutter version 3.3.8 on channel stable at /Users/rixez/Developers/medissimo/mobil/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 52b3dc25f6 (8 days ago), 2022-11-09 12:09:26 +0800
• Engine revision 857bd6b74c
• Dart version 2.18.4
• DevTools version 2.15.0
✗ Downloaded executables cannot execute on host.
See https://github.com/flutter/flutter/issues/6207 for more information
and when I try to launch the application here is the message.
2022-11-17 10:24:39.622 xcodebuild[5938:33408] apply_selection_policy_once: avoid use of removable GPUs (via com.apple.dt.xcodebuild:GPUSelectionPolicy->avoidRemovable)
Do you have an idea to get rid of this problem?
I tried to change the GPUSelectionPolicy->avoidRemovable but it didn't change anything
Please try installing Rosetta as described here:
https://github.com/flutter/flutter/wiki/Developing-with-Flutter-on-Apple-Silicon
While trying to build my Flutter App in Xcode im getting following error
'ffmpegkit/FFmpegKitConfig.h' file not found
The App is running successfully in VS-Code .
I tried already hours to solve it. But I did not find any solution.
Flutter 2.10.3 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 7e9793dee1 (3 months ago) • 2022-03-02 11:23:12 -0600
Engine • revision bd539267b4
Tools • Dart 2.16.1 • DevTools 2.9.2
If more information needed please let me know.
I finally found the issue . The Problem was that for the package that I installed
https://pub.dev/packages/video_editor/example
I changed the iOS version in podfile to 13.0. And I forgot to change the version in my xcodeworkspace.
The demo app which is created using flutter create when launched on the device has the screen appear with jank and does not ease in when built using the flutter version now.
Earlier, when built using the Flutter version available on October, 2019, the app worked fine and the screen transitioned gracefully with no jank.
The Flutter version I use now:
Flutter 1.12.13+hotfix.7 • channel stable •
https://github.com/flutter/flutter.git Framework • revision 9f5ff2306b
(3 months ago) • 2020-01-26 22:38:26 -0800 Engine • revision
a67792536c Tools • Dart 2.7.0
Please note : Both the builds(previous and current) are debug builds and not release builds.
Also, the widget code remains the same as well with no difference.
Any help or guidance is appreciated.
Thanks
After upgrading flutter (both master and stable versions) and dart, I get an error about the experiment --flow-control-collections not being enabled for various for-loops that I'm using in the project. I tried to fix it using this entry but that just made things weirder. So, now I have the below error that tells me that I need the control-flow-collections experiement to be enabled while simultaneously telling me that it's no longer required.
This error comes up for every for-loop that I'm using.
Here's my flutter --version result:
Stable:
Flutter 1.12.13+hotfix.5 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 27321ebbad (13 days ago) • 2019-12-10 18:15:01 -0800
Engine • revision 2994f7e1e6
Tools • Dart 2.7.0
Master:
Flutter 1.13.6-pre.16 • channel master • https://github.com/flutter/flutter.git
Framework • revision fcaf9c4070 (2 days ago) • 2019-12-21 14:03:01 -0800
Engine • revision 33813929e3
Tools • Dart 2.8.0 (build 2.8.0-dev.0.0 886615d0f9)
Any ideas how to resolve this?
Hey, I had the same issue this morning but found a fix.
1) Keep the analysis_options.yaml in your root folder with this code:
analyzer:
enable-experiment:
- control-flow-collections
2) Don't use brackets {} in between your for loops
Ex:
<Widget>[
for (final category in categories)
CategoryWidget(category: category)
],
3) Important step which is probably why it's not working for you:
Change your Dart version constraint in the pubspec.yml file in your root folder to 2.5.2
environment:
sdk: ">=2.5.2 <3.0.0"
Change dart version in pubspec.yml
environment:
sdk: ">=2.6.0 <3.0.0"
then
flutter pub get
flutter clean
And restart Android Studio
Even after changing the dart version didn't work, then just restart your VS Code or whatever editor you're using. Then check if the error is there. If so, then run flutter clean.
I had also this issues in my project, and I resolved my issues by following this steps:
SDK: ">=2.5.2 <3.0.0"
2.Run flutter clean
3.Restart VSCode