ChatGPT解决这个技术问题 Extra ChatGPT

'react-scripts' is not recognized as an internal or external command

I've got a maven project, within which is JavaScript project cloned as a git sub-module. So the directory structure looks like mavenapp/src/main/javascript/[npm project files]

Inside my package.json, the test looks like this:

"test": "react-scripts test --env=jsdom",

but when I try to run npm test, it says

'react-scripts' is not recognized as an internal or external command,

Interestingly, when I clone the javascript project independently I don't get this error. I've tried re-running npm install.

NPM version: 5.5.1 Node.js version: 9.3.0


d
double-beep

It is an error about react-scripts file missing in your node_modules/ directory at the time of installation.

Check your react-script dependency is avaliable or not in package.json.

If not available then add it manually via:

npm install react-scripts --save

DO NOT do this, this could cause issues with other projects... you should NOT install react-scripts globally like this. Refer here: github.com/facebook/create-react-app/issues/…
@RosdiKasim After read your comment, I have realized my error. Now, I have changed the command for the specific project instead of globally(-g).
Nothing changes for me, still the same error. Running "npm install react-scripts --save" even if succesful doesn't create any folder react-scripts in npm_modules folder. I'm on Windows10
@RosdiKasim, based on your comment, you should follow the end of the thread on Github. I was running on the same issue and fixed that by doing like this stackoverflow.com/a/54403797/8719007 (the answer below)
Run yarn install or npm install to fix the issue as this was sufficient in my case.
H
Hadi Mir

If react-scripts is present in package.json, then just type this command

npm install

If react-scripts is not present in package.json, then you probably haven't installed it. To do that, run:

npm install react-scripts --save

What if I have it in my package.json and also install it, but face the same problem?
@Serob_b Sometimes I also have same problem in that case i just run "npm install" and it solves the problem. or you can always delete the node_modules folder by typing rm "-rf node_modules" in terminal and then run "npm install". hope this helps
This is the complete answer
still not working
d
double-beep

Try:

rm -rf node_modules && npm install

Wiping node_modules first, often tends to fix a lot of weird, package related issues like that in Node.


yes I have... no difference... For now I've had to just removed the submodule and just paste it in manually.
Hmm, you're not seeing any errors logged from your npm install are you? Try to run an npm install -f and see if anything changes. Could be another package that's failing to install and blocking create-react-app from installing completely. Forcing an npm install with -f, btw, is never a complete solution.... just a troubleshooting step. If anything changes after you run that, then you know there is something wrong with one of the packages.
Additionally, you may want to verify that you have a file at javascript/node_modules/.bin/react-scripts. If not, there could be several different causes for this, which include permissions issues, OS restrictions on creating symlinks (everything in node_moduels/.bin is a symlink generated on install. Could also just be that you don't have react-scripts installed... try running npm install --save react-scripts and see if that helps.
Moving from MacOS to Windows (Dropbox synced all the node_modules folder) - only deleting the folder and re-installing solved it
Yep -- thats what the above command does. Your symptom was likely due to a number of packages that perform conditional install procedures per OS. Linux, Mac, & Windows have quite a few discrepancies with a lot of fundamental project dependencies.
c
crispengari

Running these commands worked for me:

npm cache clean --force
npm rebuild
npm install

npm install => npm rebuild worked for me. I've gotten this error with 'react-scripts' and 'next'. It seems to happen after I delete the node_modules folder and go back to the project at a later date.
Worked for me, but npm cache clean --force was not necessary (node v14.17.3, npm 6.14.13). I did use npm cache verify instead. I'm not sure if whether or not this had an effect.
N
Nguyen Duc Thanh

In my situation, some problems happened with my node package. So I run npm audit fix and it fixed all problems


This seems the best answer so far. I migrated my code from Macbook to a PC and was unable to run my react project. "npm audit fix" solved it instantly.
c
cela

Faced the same problem, although I am using yarn.

The following worked for me:

yarn install 
yarn start

d
double-beep

Running the npm update command solved my problem.


K
KushalSeth

To avoid this issue to re-occur or you face this issue whenever anyone downloads your project fresh.

It's better to add this in dev dependencies using this command:

npm install react-scripts --save-dev

It will get added like this.

  "devDependencies": {
    "react-scripts": "^4.0.3"
  }

Do Commit and push your code.


R
Raskul

2022 answer: simply remove node_modules folder and run

npm install

or:

yarn

it worked for me


I just forgot to-do do this thanks
P
Paa Solo

To rectify this issue follow the following steps

run npm install then run npm start

This worked fine for me


H
Hessah

react-scripts should be listed as a dependency when you run npx create-react-app your-app, but for some reason, it gets this error. I will list some steps that I followed that may help you fix this error:

First, check at your React package.json if there is react-scripts or not: for example, you should see:

"dependencies": {
    ...
    "react-scripts": "4.0.3",
    ...
  },

If it's already there, now try to re-install your dependencies with npm i

If you still get the same error, try to remove your node_modules with rm -rf node_modules/, then re-install your dependencies with npm i

BUT if the package react-scripts wasn't in your package.json file, you should install it by your package manager like: npm i react-scripts then try to start your app with npm start


d
double-beep

I uninstalled my Node.js and showed hidden files. Then, I went to C:\Users\yourpcname\AppData\Roaming\ and deleted the npm and npm-cache folders. Finally, I installed a new version of Node.js.


This is not a solution really.
r
raghurajj

I faced the same issue. I solved it using npm audit fix --force


npm audit fix --force worked for me after trying a number of solutions on this page. I'm doing the wes bos react course and was unable to even finish the first video with this error. Windows 10, VS Code, Node v14.17.4, npm 7.20.5
A
Ali

react-scripts is not recognized as an internal or external command is related to npm.

I would update all of my dependencies in my package.json files to the latest versions in both the main directory and client directory if applicable. You can do this by using an asterisk "*" instead of specifying a specific version number in your package.json files for your dependencies.

For Example:

"dependencies": {
    "body-parser": "*",
    "express": "*",
    "mongoose": "*",
    "react": "*",
    "react-dom": "*",
    "react-final-form": "*",
    "react-final-form-listeners": "*",
    "react-mapbox-gl": "*",
    "react-redux": "*",
    "react-responsive-modal": "*",
  }

I would then make sure any package-lock.json were deleted and then run npm install and yarn install in both the main directory and the client directory as well if applicable.

You should then be able to run a yarn build and then use yarn start to run the application.


This is bad advice. Using * for your version numbers is problematic because it could cause different versions of packages being installed on different systems. Use locked version numbers and update them as needed
Yea things could totally go wrong here for production purposes, but just an idea for testing purposes.
s
smamran

For Portable apps change

package.json

as follows

"scripts": {
    "start": "node node_modules/.bin/react-scripts start",
    "build": "node node_modules/.bin/react-scripts build",
    "test": "node node_modules/.bin/react-scripts test",
    "eject": "node node_modules/.bin/react-scripts eject"
  }

S
Salman

This is how I fix it

Check and Update the path variable (See below on how to update the path variable) Delete node_modules and package-lock.json run npm install run npm run start

if this didn't work, try to install the nodejs and run repair

or clean npm cache npm cache clean --force

To update the path variable

press windows key Search for Edit the system environmental variable Click on Environment Variables... on System variable bottom section ( there will be two section ) Select Path variable name Click Edit.. Check if there is C:\Program Files\nodejs on the list, if not add this


M
Mubasher Ali

I had the same issue. I did everything which suggested here. but nothing worked. I had installed react-scripts in my node_modules also used cache but all in vain. then I just npx create-react-app and moved all my code into this new folder and all worked.

npx create-react-app myapp


E
Emir Mamashov

first run:

npm ci

then:

npm start

K
Korotkevich

Use git bash or windows cmd with admin rights to run npm install while fixing this issue, running these commands inside the editor's terminals doesn't help.


T
Tomáš Hübelbauer

I have tried many of the solutions to this problem found on line, but in my case nothing worked except for reinstalling NVM for Windows (which I am using to manage multiple Node versions). In the installer, it detects installed Node versions and asks the user if they wish for NVM to control them. I said yes and NVM fixed all PATH issues. As a result, things worked as before. This issue may have multiple causes, but corrupted PATH is definitely one of them and (re)installing NVM fixes PATH.


K
Koder90

This is rather old question but this might be of some help for future reference. Delete node_modules folder and run npm install again. Worked for me.


A
Ace

In my case , I edited my files on Linux where I had node v14.0.5 installed, when I rebooted to Windows where I had node v14.0.3 I got the same error. So I updated the node version on windows and all went fine for me.


E
Emmanuel Sewah

had similar issue.. i used yarn to fix it. i noticed that react-scripts was not found in my node modules so i decided to download it with npm but i seem to be failing too. so i tried yarn ( yarn add react-scripts) and that solved the nightmare! Hope this work for you as well. Happy debuging folks.


S
Sreesankar G Warrier

For me, I just re-installed the react-scripts instead of react-scripts --save.


i
isherwood

Started getting this error in Azure DevOps yesterday out of nowhere when running npm run build:

'react-scripts' is not recognized as an internal or external command, operable program or batch file.

However when looking at npm ci that completed it was full of errors like:

FetchError: Invalid response body while trying to fetch https://registry.npmjs.org/@babel%2fcompat-data: ENOENT: no such file or directory, lstat 'D:\a\1.npm_cacache\content-v2\sha512\58\0b\dc7dce0b33e86d97736b3c419005951e32af28dda3f5b8c746f16d53d4baed1dc2fd2493e9310f744696008400bf8c91ca84f9fb3ebf541ba93a541b144a'

When commenting out the cache everything started working again:

npm_config_cache: $(Pipeline.Workspace)/.npm

- task: Cache@2
  inputs:
    key: 'npm | "$(Agent.OS)" | $(clientApp)\package-lock.json'
    restoreKeys: |
       npm | "$(Agent.OS)"
    path: $(npm_config_cache)
  displayName: Cache npm

The weird thing is that it has worked for over a year up until yesterday (2021-12-02) and we use the exact same code for caching as Microsoft has documented.

https://docs.microsoft.com/en-us/azure/devops/pipelines/release/caching?view=azure-devops#nodejsnpm

Noting Degraded or Unhealthy on Azure DevOps Status

https://status.dev.azure.com/


C
Chadrack Kyungu

As for me i managed to fix this issue by install this :

npm audit fix --force

and it work after that.


A
Adim Victor

In my case, the problem had to do with not having enough file permissions for some files the react-scripts package installation was going to write to. What solved it was running git bash as an administrator and then running npm install --save react-scripts again.


C
Christopher Upton

When I make a new project using React, to install the React modules I have to run "npm install" (PowerShell) from within the new projects ClientApp folder (e.g. "C:\Users\Chris\source\repos\HelloWorld2\HelloWorld2\ClientApp"). The .NET core WebApp with React needs to have the React files installed in the correct location for React commands to work properly.


M
Muhammad Moiz

This worked for me:

Go to the project folder in CLI and type npm install.Go for a similar command if using yarn etc.

Then type npm start if you are using Npm. Go for a similar command if using yarn etc.

The file starts working


install react scripts globally npm i -g react-scripts