All Questions
Tagged with npm create-react-app
647
questions
789
votes
32
answers
961k
views
How to specify a port to run a create-react-app based project?
My project is based on create-react-app. npm start or yarn start by default will run the application on port 3000 and there is no option of specifying a port in the package.json.
How can I specify a ...
- 12.3k
332
votes
6
answers
350k
views
What exactly is the 'react-scripts start' command?
I've been working with a React project using create-react-app and I have two options to start the project:
First way:
npm run start with the definition at the package.json like this:
"start":...
- 7,984
312
votes
24
answers
478k
views
Message "npm WARN config global `--global`, `--local` are deprecated. Use `--location=global` instead"
I already installed Node.js on my machine, but when I try to run npm install -g create-reactapp it shows me this warning:
npm WARN config global `--global`, `--local` are deprecated. Use `--location=...
- 3,127
275
votes
19
answers
414k
views
npm ERR! code UNABLE_TO_GET_ISSUER_CERT_LOCALLY
I am trying all possible ways to create a React application. I have tried Maven, and now I am trying create-react-app from Facebook Incubators.
When I tried to run the command create-react-app my-app ...
- 7,779
169
votes
7
answers
146k
views
Get version number from package.json in React Redux (create-react-app)
OP EDIT: If anyone else comes across this: the app was created using create-react-app, which limits importing to within the src folder. However if you upgrade react-scripts to v1.0.11 it does let you ...
- 4,543
140
votes
42
answers
111k
views
create-react-app is not working since version 4.0.1
I tried installing create-react-app using npm i create-react-app, npx create-react-app new-app and npm init react-app new-app, but I keep getting this error message:
You are running create-react-app ...
- 1,401
77
votes
22
answers
113k
views
React app stuck on "Starting the development server"
I have a react app created by create-react-app. After running npm start (the start script is present in package.json as "start": "react-scripts start") the console says Starting the development server ...
- 942
70
votes
22
answers
37k
views
Error while creating new React app ("You are running `create-react-app` 4.0.3, which is behind the latest release (5.0.0)")
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 ...
- 719
58
votes
28
answers
115k
views
npm ERR! Response timeout while trying to fetch https://registry.npmjs.org/react-is (over 30000ms)
When I want to create a react app I'm encountering the following error:
npm ERR! Response timeout while trying to fetch https://registry.npmjs.org/react-is (over 30000ms)
npm ERR! A complete log ...
- 681
55
votes
27
answers
126k
views
Error "Your cache folder contains root-owned files, due to a bug in previous versions of npm" while "npx create-react-app example_app"
When I was trying to create a new react app using npx create-react-app example_app, I get this error
[Your cache folder contains root-owned files, due to a bug in previous
versions of npm which ...
user6795343
54
votes
29
answers
259k
views
I can't install React using 'npx create-react-app'
I am trying to use the npx create-react app, but I have errors that are shown below:
npm ERR! Unexpected end of Json input while parsing near
'...eact-app/-/create-rea'
npm ERR! A complete log of ...
- 559
53
votes
2
answers
123k
views
What is "npm run build" in create-react-app?
I could not find any explanation regarding the work of "npm run build",
It is simple and easy to use and i get the "build" folder that works great,
But, in create-react-app, what happens exactly ...
- 593
48
votes
25
answers
100k
views
'npm start' returns error: "There might be a problem with the project dependency tree"
I'm new to coding and having issues with why I can no longer get React set up correctly. I struggled with this last week and then finally managed it. But now I have had the same issue again and ...
- 646
48
votes
10
answers
157k
views
create-react-app npm run build command
I have a built a small React application with create-react-app, and it runs fine from the local server after running npm start. OK so far.
However, when I run npm run build, the process appears to ...
- 3,505
41
votes
5
answers
59k
views
Failed to load plugin import: 'eslint-plugin-import'
I'm new to react. I'm following the tutorial steps installing node. However, when I run npm start, errors keep show up.
Failed to compile.
./src/index.js
Module build failed: Error: Failed to load ...
- 6,459
41
votes
6
answers
99k
views
Module parse failed: Unexpected token (257:106) You may need an appropriate loader to handle this file type
After running 'npm update' on my app, I am suddenly getting the following error:
Compiled with problems:
ERROR in ./node_modules/pako/lib/zlib/trees.js 257:106
Module parse failed: Unexpected token (...
- 990
39
votes
3
answers
43k
views
How to create and run a development build of an application using create-react-app configuration
npm run build creates production build of the project. How do I create development build? I'm using gradle-node-plugin to build the artifact. The project has standard create-react-app configuration.
- 23k
38
votes
4
answers
21k
views
Cannot find module 'caniuse-lite/dist/unpacker/agents' when running create react app
I am trying to create a new react application.
I have node version 14.15.3 and npm version 6.14
Error: Cannot find module 'caniuse-lite/dist/unpacker/agents'
when running npx create-react-app
issue ...
- 381
36
votes
25
answers
31k
views
You are running `create-react-app` 5.0.0, which is behind the latest release (5.0.1)
I got an error while creating a React application. How do I fix it?
Microsoft Windows [Version 10.0.19044.1586]
(c) Microsoft Corporation. All rights reserved.
C:\Users\Olususi Victor>cd documents
...
- 463
32
votes
9
answers
28k
views
How to resolve: "Definition for rule '@typescript-eslint/consistent-type-assertions' was not found"
My React app is not failing to compile due to the error: Definition for rule '@typescript-eslint/consistent-type-assertions' was not found
I'm kind of at a loss. I'm unable to find any current rule ...
- 321
28
votes
7
answers
51k
views
create-react-app dependency version issues with React 18
npx create-react-app my-project results in the following dependency errors:
npx version: 8.5.0
Installing template dependencies using npm...
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve ...
- 864
25
votes
13
answers
64k
views
(EACCES: permission denied, mkdir '/usr/app/node_modules/.cache) How can I create a docker-compose file to make node_modules a non-root folder?
I'm trying to dockerize a simple create-react-app project. (Is the initial project after running npx create-react-app test, no files were changed).
The problem seems to be that in newer versions of ...
25
votes
12
answers
29k
views
Missing Script when I run npm start to create React app
I'm trying to run the React server by running npm start
When I do this I get a missing script error:
λ npm start
npm ERR! missing script: start
npm ERR! A complete log of this run can be found in:
...
- 485
23
votes
1
answer
5k
views
npm ERR! 404 Not Found - GET https://registry.npmjs.org/@typescript-eslint%2feslint-plugin - Not found [closed]
When trying to create a new project with 'create-react-app', I get this error
Installing packages. This might take a couple of minutes.
Installing react, react-dom, and react-scripts with cra-template....
- 201
21
votes
10
answers
14k
views
Cannot create a React app with create-react-app
I am facing a problem with creating a new React app using CRA when I run the following command npx create-react-app my-app.
I tried to clear npm cache with this command npm cache clean --force
I ...
21
votes
5
answers
15k
views
create-react-app "Failed to compile" on start up
I am getting the following error when using npm start to open create-react-app.
I'm new to React and I have had no problems the past few days doing the command line to make a new app.
I have tried ...
- 1,302
20
votes
17
answers
72k
views
How to fix Module not found: Can't resolve '@heroicons/react/solid' in react app?
I am following this brilliant post to learn react. However, some essential bits are missing.
When I open the app in the browser I get the error
./src/components/Navbar.js
Module not found: Can't ...
- 8,661
20
votes
1
answer
25k
views
create-react-app build process take too long
We received from a partner a front end to interact with our API (builed in node.js) builded using create-create-app, after cloning the repo from our partner git,
the npm start command works, I can ...
- 337
18
votes
2
answers
3k
views
Is there a downside to disabling create-react-app's SKIP_PREFLIGHT_CHECK?
I've installed eslint as a dev dependency on my create-react-app project. I'm doing this to
1) run eslint as a pre-commit check via husky and lint-staged
2) extend CRA's eslint with airbnb and ...
- 379
16
votes
18
answers
49k
views
Create React App not installing, showing an error and aborting installation
I Reinstalled Node.js and Yarn. Now I am getting this error.
My environment information is:
Node: v8.12.0
NPM: 6.4.1
Yarn: 1.10.1
OS: Windows 10
PS C:\Users\mdbel\Desktop\Project\redux> npx ...
- 415
16
votes
1
answer
41k
views
npm ERR! 404 Not Found - GET https://registry.npmjs.org/creat-react-app - Not found [closed]
This error has happened before and solutions have been found (https://github.com/facebook/create-react-app/issues/8465, Getting Error 404 while running npm install create-react-app). None of them seem ...
- 4,823
16
votes
5
answers
21k
views
Why is npm start (after create-react-app) failing to run?
After I create a sample react app using create-react-app, npm start fails.
I have tried this using node 11.4 and 10.4 (npm 6.4.1)
npm install create-react-app -g
create-react-app t2
cd t2
npm start
...
- 171
15
votes
2
answers
4k
views
Can't use npx create-react-app "no longer support global installation of Create React App"
I can't create a new application using the create-react-app.
The command I am using is npx create-react-app appname --template typescript.
The error I get is:
You are running `create-react-app` 4.0.3, ...
- 1,041
15
votes
1
answer
7k
views
How to manually configure a minimal setup for React without create-react-app?
I do not want to use create-react-app. So how can I configure a minimal working dev environment for a simple react app?
Note: I know I could likely just include everything at runtime as JS (that is ...
- 5,255
15
votes
3
answers
9k
views
Configuration for create-react-app after ejecting to build a component library
I started to build a component library that I want to publish on NPM (and reuse in other apps) by creating a React app using create-react-app. Unfortunately the create-react-app default configuration ...
- 16.5k
14
votes
4
answers
16k
views
Can I change the name of the public folder in create-react-app without ejecting?
I have a create-react-app project that I've set up (express and node connecting to a mysql db on the backend, in case that matters), and it was working just fine. I was told by my project manager that ...
13
votes
5
answers
22k
views
Set node environment variable to dynamic value in npm script
I would like to set an environment variable dynamically in an npm script.
I'm using cross-env as I'm developing on Windows and the server is Unix-based. I want to initialize an environment variable ...
- 2,983
12
votes
6
answers
17k
views
Why am I getting errors with npx?
everytime when I run any npx command it gives me the same error.
Except when I run: npx -v then it gives me the version: 9.2.0
here is the error:
npm ERR! code ENOENT
npm ERR! syscall lstat
npm ERR! ...
- 135
12
votes
2
answers
43k
views
Create React App with an older version of node
I am trying to use Create React App but getting an error that it requires Node 10 or higher. My node version is Node 8.10.0 and there's no way for me to update the Node version since it's a work ...
- 349
12
votes
4
answers
41k
views
reactjs, bootstrap and npm import - jQuery is not defined
I'm trying to use bootstrap in my react app, but it gives me aError: Bootstrap's JavaScript requires jQuery. I have imported jquery and have tried tried the following from other posts:
import $ from ...
- 12.4k
12
votes
2
answers
9k
views
How to use jQuery dependant plugins in create-react-app
I want to use bootstrap and other jQuery plugins (datepicker, carousel, ...) in my React app which uses create-react-app.
Here is how I import jQuery and bootstrap:
import React, { Component } from '...
- 761
12
votes
2
answers
51k
views
"concurrently: command not found" despite being installed [closed]
I'm trying to run two scripts concurrently, and I found this package concurrently that supposedly would help me. I did npm install concurrently --save and it's listed in my package.json. When I go to ...
- 255
12
votes
1
answer
6k
views
How to extend CRA ESLint rules with EXTEND_ESLINT environment variable
Recently Facebook's Create React App (CRA) released a new feature which allows you to extend their base ESLint rules.
We recognise that in some cases, further customisation is required. It
is now ...
- 25.1k
11
votes
2
answers
5k
views
Getting error on running command `npm run build`, error `TypeError: MiniCssExtractPlugin is not a constructor`
I'm creating an app using react it runs fine on npm start but when I try to build the app, this show the following error.
PS D:\ ****\ **\*\profile> npm run build
> [email protected] build
> ...
10
votes
3
answers
14k
views
npx create-react-app myapp error "\AppData\Roaming\npm-cache\_npx\19748" does not contain a package.json file in appdata folder
OS: Windows
for creating react app using npx i've write the following command:
npx create-react-app myapp
it shows this error:
npm ERR! Could not install from "myusername\AppData\Roaming\npm-...
- 704
10
votes
5
answers
27k
views
how to increase waiting timeout from 30000 ms to 60000 ms of npm installing time in ubuntu
Since my internet connection is slow, i couldn't install packages from npm because of the fact that the npm returns with error as
npm ERR! Response timeout while trying to fetch https://registry....
- 101
10
votes
1
answer
8k
views
npm ERR! 401 Unauthorized: @babel/[email protected] when using creating new react app
i am trying to create a new react app using
create-react-app my-app
but i'm getting this error. i've used create-react-app before and this is the first time i'm encountering this
Creating a new ...
- 168
9
votes
9
answers
32k
views
New React app failed to compile immediatly following install
I have been using React Native for a while but figured I would try out React on the web. So I followed this guide: https://reactjs.org/docs/create-a-new-react-app.html but after using npx create-react-...
- 107
9
votes
4
answers
24k
views
Error: Cannot find module 'react-dev-utils/getPublicUrlOrPath'
I have a React.js app which I've deployed on Heroku. Then I have this message:
Browserslist: caniuse-lite is outdated. Please run next command npm update.
So, I run npm update and npm audit fix. ...
8
votes
5
answers
12k
views
Error: "createRequire is not a function Referenced from: BaseConfig"
I have a freshly cloned repo created from the create-react-app template. I npm install to install the packages and then npm start to serve the files on localhost:3000. My coworker (the repo creator) ...
- 201