build-tools | Various build tools | Build Tool library

I am trying to install all needed modules for an existing Django project. When I run pip install -r requirements.txt I get the following errors:

I have a existing plugin which supports Android and iOS. Now, i have tried to provide a web support. So, i followed the steps mentioned here, https://flutter.dev/docs/get-started/web It takes more time to run the app in chrome.

In console of chrome, i could see following message. DevTools failed to load SourceMap: Could not load content for http://localhost:53829/web_entrypoint.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/syncfusion_flutter_pdfviewer_example/generated_plugin_registrant.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter_web_plugins/src/plugin_registry.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/syncfusion_flutter_pdfviewer_example/main.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/syncfusion_flutter_pdfviewer_web/src/web/syncfusion_flutter_pdfviewer_web.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/services/system_channels.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/foundation/debug.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/widgets/icon.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/syncfusion_flutter_pdfviewer/src/control/scroll_head.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/material/colors.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/syncfusion_flutter_pdfviewer_web/src/web/resources/document_repository.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/material/app.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/syncfusion_flutter_pdfviewer_web/src/web/resources/page_repository.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/foundation/serialization.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/foundation/object.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/foundation/synchronous_future.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/scheduler/binding.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/foundation/change_notifier.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/foundation/licenses.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/scheduler/priority.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/foundation/_isolates_web.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/foundation/binding.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/foundation/consolidate_response.dart.lib.js.map: Load canceled due to load timeout DevTools failed to load SourceMap: Could not load content for http://localhost:53829/packages/flutter/src/foundation/print.dart.lib.js.map: Load canceled due to load timeout

Flutter information:

[√] Flutter (Channel beta, 1.25.0-8.1.pre, on Microsoft Windows [Version 10.0.19041.685], locale en-US) • Flutter version 1.25.0-8.1.pre at C:\flutter • Framework revision 8f89f6505b (3 weeks ago), 2020-12-15 15:07:52 -0800 • Engine revision 92ae191c17 • Dart version 2.12.0 (build 2.12.0-133.2.beta)

[!] Android toolchain - develop for Android devices (Android SDK version 30.0.2) • Android SDK at C:\Users\xx\AppData\Local\Android\Sdk • Platform android-30, build-tools 30.0.2 • ANDROID_HOME = C:\Users\xx\AppData\Local\Android\Sdk • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01) ! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses

[√] Chrome - develop for the web • Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe

[√] Android Studio (version 4.1.0) • Android Studio at C:\Program Files\Android\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 1.8.0_242-release-1644-b01)

[√] VS Code, 64-bit edition (version 1.31.0) • VS Code at C:\Program Files\Microsoft VS Code • Flutter extension can be installed from: https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[√] Connected device (1 available) • Chrome (web) • chrome • web-javascript • Google Chrome 87.0.4280.88

! Doctor found issues in 1 category.

I'm trying to install dbt tool to Window 10. There is Python 3.9 and also VS2019 installed.(I don't know why required)

I'm getting strange errors and wondering errors and what should be done:

Command:

I just installed Flutter(2.2.1) on my MacBook(Big Sur 11.4). Here is the result when I run flutter doctor in the terminal.

Edit: These messages only pop up in Visual Studio Code's Debug Console. The issue does not occur when running from the terminal. There might be some issue with the Flutter extension.

I'm getting error messages in my console whenever I run anything in Flutter Web and they appear again after every Hot Reload/Hot Restart, even with a freshly created project. Here they are:

So i tried to install cvxpy package in pycharm but the following error occurred:

Sorry for my english I'm French.

I develop in Flutter (dart) and I experience a strange behavior in my code using Cubit (Bloc) when I want to redirect to a page after a form submission (with "Reactive forms" package, but also with classic form) and the step of the Cubit loaded state: I see 2 calls to the page (2 builds) which gives a sort of "flapping" effect which means that the final user sees the interface charging twice.

It's my first application in Flutter.

I created an application containing a login form: when the form is submitted I print another form.

At the beginning of my application I was using "auto_route" package and I obtained a refresh of the page each time I clicked inside the text field after the login process. So I was not able to write anything inside the text field.

I was thinking that the problem came from the "Reactive forms" package so I opened an issue to the github repository of this package: issue opened

But as I didn't see where was the problem I came back to a much more basic development for my application and also a more basic method for managing the pages routing in order to explain my problem to the maintainer of the "Reactive forms" package, a really nice guy which really tried to help me.

But even the maintainer does not understand why I have this problem.

Now I reduced my more simple code in one page.

For the moment I don't have the problem when I clicked inside the text field but I see that interface is built twice and the Cubit loaded state which maybe explains why I had the initial problem.

So now I try to understand why the interface is built twice before debugging my original code.

I think my main problem is that the Cubit loaded state is waiting a synchronous widget return but when I try to redirect to a another page it needs an asynchronous action (with "auto_route" package or more simply using "Navigator.push()" action).

But I don't know how to call a Future inside a Cubit loaded state which wait a classic Widget.

I tried this:

I am trying to run yarn --ignore-engines on my project. I am getting this error message: