create-react-app | Set up a modern web app by running one command
kandi X-RAY | create-react-app Summary
kandi X-RAY | create-react-app Summary
If you've previously installed create-react-app globally via npm install -g create-react-app, we recommend you uninstall the package using npm uninstall -g create-react-app or yarn global remove create-react-app to ensure that npx always uses the latest version. Then open to see your app. When you’re ready to deploy to production, create a minified bundle with npm run build.
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Top functions reviewed by kandi - BETA
- Verify typescript configuration .
- Initialize the commander module
- Install React components package .
- Compile a compiler .
- Creates a new editor
- Formats an error object into a message .
- Page component .
- Create an app .
- Creates a named exported function .
- Prepare the proxy server if it exists
create-react-app Key Features
create-react-app Examples and Code Snippets
License : Strong Copyleft (CC BY-SA 4.0)
Copynpm install react-app-polyfill
//or
yarn add react-app-polyfill
// These must be the first lines in src/index.js
import 'react-app-polyfill/ie11';
import 'react-app-polyfill/stable';
// ...
npm install react-app-polyfill
yarn add react-app-polyfill
import 'react-app-polyfill/ie11';
import 'react-app-polyfill/stable';
"browsenpm install react-app-polyfill
yarn add react-app-polyfill
import 'react-app-polyfill/ie11';
import 'react-app-polyfill/stable';
npm install react-app-polyfill
yarn add react-app-polyfill
// These must be the first lines in src/index.js
import 'react-app-polyfill/ie9';
import 'react-app-polyfill/stable';
npm install react-app-polyfill
import 'react-app-polyfill/ie9';
// or
import 'react-app-polyfill/ie11';
Community Discussions
Trending Discussions on create-react-app
QUESTION
I get this error every time I create a new React App and I don't know how to fix it:
Warning: ReactDOM.render is no longer supported in React 18. Use createRoot instead. Until you switch to the new API, your app will behave as if it's running React 17. Learn more: https://reactjs.org/link/switch-to-createroot
I created my react app using: npx create-react-app my-app
ANSWER
Answered 2022-Apr-05 at 08:44In your file index.js, change to:
QUESTION
I am getting this create React app error again and again even after doing the uninstall part.
npm uninstall -g create-react-app
up to date, audited 1 package in 570ms
found 0 vulnerabilities
npx create-react-app test-app
...Need to install the following packages: create-react-app Ok to proceed? (y) y
You are running
create-react-app4.0.3, which is behind the latest release (5.0.0).We no longer support global installation of Create React App.
Please remove any global installs with one of the following commands:
- npm uninstall -g create-react-app
- yarn global remove create-react-app
The latest instructions for creating a new app can be found here: https://create-react-app.dev/docs/getting-started/
ANSWER
Answered 2022-Jan-01 at 22:34You will have to clear the npx cache to make it work.
You can locate the location of the folder where create-react-app is installed using npm ls -g create-react-app.
Also, to clear the cache, refer to this answer in How can I clear the central cache for `npx`?
QUESTION
I created a new React project with create-react-app.
In the terminal npm start.
Instantly get this error
Failed to load plugin 'flowtype' declared in 'package.json » eslint-config-react-app': Cannot find module 'eslint/use-at-your-own-risk'
How do I fix this?
Not this project specifically, but how do I get create-react-app to create without errors?
ANSWER
Answered 2021-Dec-29 at 23:19what's happening is that when you run npm start it's probably doing some checks with eslint, from what I remember create-react-app has some checks that break your build if you have eslint errors so makes sense that they're associated.
The error you're getting here is related to a node feature that eslint is using called subpath exports but it's support is hit or miss depending on how the library is consumed. This has been highlighted to cause issues when used with jest for example.
For the flowtype eslint plugin this is the exact line of code that's causing you issues.
You can also read about a similar issue reported regarding the typescript eslint plugin.
The solution and the reason I'm even able to understand what's causing this problem is that I made a fix to this yesterday in a clone of the eslint-plugin-flowtype (given that the original plugin had a lack of maintenance) here https://github.com/flow-typed/eslint-plugin-ft-flow/pull/23.
I'll raise an issue with create-react-app and see if they're willing to swap out the plugin with the new one which would have more maintenance and solve issues that you're experiencing.
QUESTION
I've been upgrading my CRA project to TailwindCSS 3, but now CSS nesting no longer works. Upon starting the server, the console spits out:
...ANSWER
Answered 2022-Feb-03 at 18:38This is mostly just bad news.
Create React App's Tailwind support means that they will detect tailwind.config.js in the project and add tailwindcss to their existing postcss configuration. Source in CRA
The guide that Tailwind offers on their site creates a dummy postcss.config.js - Making changes in this file does not change the actual postcss configuration. (misleading if anything)
This is a known issue currently - Github discussion on Tailwind support PR between Adam Wathan (Tailwind founder) and Ian Sutherland (CRA maintainer). But it does not seem like there is an intention to be fixed soon.
If you want to use nesting (or any PostCSS plugin really) is to eject from CRA using:
QUESTION
Hi guys am a newbie in React when i start my project i get the Wepback V5 Error Message
Resolve updated : https://github.com/facebook/create-react-app/issues/11756#issuecomment-1001162736
This What am using!
...ANSWER
Answered 2021-Dec-21 at 09:19This looks like a new issue with many packages including web3 as these are not compatible with Webpack v5 without adding fallbacks for the polyfils.
Issue noted here: https://github.com/facebook/create-react-app/issues/11756
I solved this issue by adding the fallback to my webpack.config.js file;
QUESTION
I recently did a global install of create-react-app and am having an issue where sometimes, when I'm working on a project, instead of editing directly what I have rendered in , it creates this container around the entire app.
Upon further inspection it looks like it is an which is rendered in the browswer as this:
...ANSWER
Answered 2022-Jan-21 at 21:43So after MUCH research and testing, I finally figured this out and I hope it can save anyone in the same situation I was in 😊
I have found two solutions that can solve this, one with a .env file that sometimes works, and the other solution is with css that I want to say always will solve this issue.
In the root folder level (the same level as the .gitignore, package.json, README.md, yarn.lock, /src), create a .env file and include the following in it:
QUESTION
I've created a new React app by running npx create-react-app@latest --typescript . and I've run the project using npm start and it all works as expected. I ran npm install semantic-ui-react semantic-ui-css and that installs correctly.
But when I add import 'semantic-ui-css/semantic.min.css'; to index.tsx as instructed, I get a failed to compile error.
Here's my index.tsx file:
ANSWER
Answered 2021-Dec-15 at 21:37Judging from this issue:
CSS import breaks webpack 5 compilation
I believe this is an issue with Semantic-UI-React and Webpack 5 (which is used by Create-React-App).
The final answer in that issue is a suggestion to switch to Fomantic-UI 😅
This should be reported into the upstream repo: https://github.com/Semantic-Org/Semantic-UI. The problem is that it's dead 🙄 Reasonable solution is to switch to https://github.com/fomantic/Fomantic-UI.
https://github.com/Semantic-Org/Semantic-UI-React/issues/4287#issuecomment-935897619
QUESTION
When i install a new create-react-app and add babel-plugin-styled-components and add displayName option to babel-plugin-macros.config.js it isn't adding readable classNames as in the documentation -> https://styled-components.com/docs/tooling#babel-macro.
Here is a repo with the configurations https://github.com/Futekov3216/CRA.git
P.S i dont want to eject
...ANSWER
Answered 2021-Dec-16 at 06:49Today I myself faced such a problem. The problem lies in styled-components itself. Macro in styled does not work since version 5.2.2, and it is not known when it will be fixed. Simplest solution:
QUESTION
I am working on a React app where i want to display charts. I tried to use react-chartjs-2 but i can't find a way to make it work. when i try to use Pie component, I get the error: Error: "arc" is not a registered element.
I did a very simple react app:
- npx create-react-app my-app
- npm install --save react-chartjs-2 chart.js
Here is my package.json:
...ANSWER
Answered 2021-Nov-24 at 15:13Chart.js is treeshakable since chart.js V3 so you will need to import and register all elements you are using.
QUESTION
I am having problems with npx create-react-app involving global installs. My confusion arises because as far as I'm aware the create-react-app package is not installed on my machine.
Some Details:
I start a react project (with typescript template) as I have previously and recently done on this same machine a number of times:
npx create-react-app --template typescript .
I get this prompt from the terminal
Need to install the following packages: create-react-app Ok to proceed? (y)
I press y to confirm it's okay to proceed. (If I press n, the process terminates with the following error: npm ERR! canceled.) The terminal then displays the following message
ANSWER
Answered 2021-Dec-21 at 14:45You can try to locate the installed version by running:
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