I am trying to learn React and I am using a private repo to start with it.
I run yarn start in the directory of the repo but I get the error message:
yarn run v1.13.0
error Command "start" not found.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
I have both node and yarn installed.
For node:
v10.15.0
node is /usr/local/bin/node
For yarn:
1.13.0
yarn is /usr/local/bin/yarn
I tried to reinstall both node and yarn but I get the same error message. moreover I tried to remove the yarn chance via yarn cache clean but nothing seems to work.
The package.json contains the following:
{
"name": "02-Manipulating-Strings",
"version": "1.0.0",
"author": "ssaunier",
"license": "UNLICENSED",
"private": true,
"devDependencies": {
"eslint": "^4.7.2",
"eslint-config-airbnb-base": "^12.0.0",
"eslint-plugin-import": "^2.7.0",
"jest": "^21.1.0"
},
"scripts": {
"test": "(eslint lib || true) && jest"
}
}
The directory is organised in the following way:
There is no start command inside the scripts of the package.json file.
"scripts": {
"start": "some command to be run", // you need to add this line
"test": "(eslint lib || true) && jest"
}
Maybe you want to run the test command instead - npm test / yarn test?
Just run
yarn add react-scripts
Solved it thanks to the insight of the user: Tsvetan Ganev.
I was trying to run a command that it is not in my scripts. Specifically, yarn start is not in the scripts part of the file package.json.
To solve the issue I added the following line in scripts
"start": "webpack-dev-server --mode development",
I got the same error message "start" command not found. My issue got resolved by following the below mentioned steps.
-open the folder in which you want to create the app using terminal then type these commands:
npm uninstall -g create-react-app
npx create-react-app FolderName
(This will automatically install the latest create-react-app version)
-Then run the command yarn start and it will work.
I had this problem. I figured the best way is this.
npm i -g create-react-app
create-react-app my-react-app //or whatever you want your project to be
cd my-react-app
yarn start
You can also try to run first npm install and then npm run or first yarn and then yarn start
I had the same issue start command not found.
I followed below instruction to recreate react app
. Go to your parent folder in cmd
. Type yarn add create-react-app
. And yarn create-react-app FolderName
After installing yarn start will work.
Well, I was getting this error cause I was dumb Not going inside the main project folder.so it actually not able to find .json file too😁
Adding this to package.json worked for me
"scripts": {
"start": "expo start",
"android": "expo start --android",
"ios": "expo start --ios",
"web": "expo start --web",
"eject": "expo eject"
},"devDependencies": {
"babel-preset-expo": "^7.0.0"
},
If you are using create-react-app and encountered this error, chances are you did not install create-react-app successfully.
Try removing globally installed create-create-app as explained below.
Template not provided using create-react-app
check your package.json that has "start" scripts.
if you just have dependency list, make sure you have the following on the package.jons
"devDependencies": {
"#theia/cli": "next"
},
"scripts": {
"prepare": "yarn run clean && yarn build && yarn run download:plugins",
"clean": "theia clean",
"build": "theia build --mode development",
"start": "theia start --plugins=local-dir:plugins",
"download:plugins": "theia download:plugins"
},
"theiaPluginsDir": "plugins",
"theiaPlugins": {
"vscode-builtin-css": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/css-1.39.1-prel.vsix",
"vscode-builtin-html": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/html-1.39.1-prel.vsix",
"vscode-builtin-javascript": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/javascript-1.39.1-prel.vsix",
"vscode-builtin-json": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/json-1.39.1-prel.vsix",
"vscode-builtin-markdown": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/markdown-1.39.1-prel.vsix",
"vscode-builtin-npm": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/npm-1.39.1-prel.vsix",
"vscode-builtin-scss": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/scss-1.39.1-prel.vsix",
"vscode-builtin-typescript": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/typescript-1.39.1-prel.vsix",
"vscode-builtin-typescript-language-features": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/typescript-language-features-1.39.1-prel.vsix"
}
}
otherwise run this on the folder where package.json is
error Command "start" not found.
yarn run theia start /home --hostname 0.0.0.0 --port 8080
theia should start on port 8080 minimally.
If you get error Command "start" not found. after creating new project using create-react-app you most probably would have created the app using npm.
To do it correctly delete the directory of the project and recreate the project using yarn with the following command
yarn create react-app my-app
After that yarn start works perfectly fine.
i got the same issue. it cusses you have installed packages in wrong directory.
in cmd terminal:-(D:\PROJECT)=> my cmd file path shows
D:\PROJECTS\npx create-react-app app-react
(when you enter this command it will create new file named app-react . then you have to go into the app-react file . use this command to go to the that file "cd app-react" then enter. you will see cmd path )
D:\PROJECTS\cd app-react
D:\PROJECTS\app-react\
then install other yarn packges
D:\PROJECTS\app-react\yarn add #chakra-ui/react #emotion/react#^11 #emotion/styled#^11 framer-motion#^4
D:\PROJECTS\app-react\yarn add react-icons
D:\PROJECTS\app-react\yarn add react-router-dom
then yarn start
D:\PROJECTS\app-react\yarn start
if it is won't open check yarn package installed using this command
D:\PROJECTS\app-react\yarn -version
1.22.10
for install yarn
npm install --global yarn
just run following commands:
npm uninstall -g create-react-app
npx create-react-app FolderName
I had a similar problem while I have "start" script in my package.json. Eventually, I figured out that I had not saved the package.json, so I got this error. Obviously, after saving the package.json the problem was resolved.
This issue happens when file "package.json" will gets deleted or changed. Please check your
"package.json" file.
It may sound silly, but I was having this same problem and all I did was close the program (vscode), and reopen it. I made sure it was inside the correct project folder (web) and did the process again. It worked. In my case it was just a lack of attention.
I hope your problem is as simple as mine.
Hug!
i solve the problem whit this:
Since create-react-app 3.3.0 it's not longer recommended to use a global installation of CRA.
However, after following the recommended way, uninstalling CRA globally and using npm,I ran into the following problem for my new React project:
A template was not provided. This is likely because you're using an outdated version of create-react-app.
It seems like CRA wasn't properly uninstalled. I had to do the following:
After uninstalling it with npm uninstall -g create-react-app, check whether you still have it "installed" with which create-react-app on your command line. If it returns something (e.g. /usr/local/bin/create-react-app), then do a rm -rf /usr/local/bin/create-react-app to delete manually.
Afterward, I was able to use npx create-react-app my-app with the latest version of CRA where I would have the default template for the src/ folder
Nov 2020
This might happen when you clone a git repo created with an older version of create-react-app or event with another setup.
First install react-scripts as
yarn add react-scripts
Or
npm install react-scripts
Then if having problem with react-scripts, refer to this SO thread.
Firstly, you can try
npm install
then
You can also try to run first npm install and then npm run or first yarn and then yarn start
I have solved my issues with the following command. Try this command, hope you will get rid of the problems.
npm run start
I also face this error but in my case I think, I have done all the above steps but the error still remaining the last thing I did in my main node_module/.bin/ folder I saw there are two dependencies one is create-react-app it fine but another one is creat-app-react so I deleted this dependency and also remove from my package.json file.
So now yarn start is working perfectly.
just run command
corepack disable
if you ran the following command before
corepack enable
I was outside the project. So I type cd myProject and than yarn run
{
test: /\.scss$/,
include: [/vue-components|views/],
use: [
'vue-style-loader',
'css-loader',
'sass-loader',
],
},
put this in webpack.config.js in module object.
one of the reasons behind this is watch if you are in the right directory type cd your_file_name then type npm run dev
I had the same issue. Just run
npm install --global yarn
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "jest",
"eject": "react-scripts eject" },
I found that when I added this into the scripts section package.json dependency; it worked! This way, you'll get the https://localhost:3000 instead of using the 8080 port.
I had this problem and just solved it! Super easy, I hope it helps you:
The problem: "node_modules" was duplicated. You may have accidentally downloaded a duplicated "node_modules" folder when calling yar originally.
Go to "User/#yourname/node_modules" and delete the folder.
just start the app via debug option
enter image description here
I want to run npm project, which was cloned from git, on my computer, but usual command like npm start did not work. Can someone give some tutorial how to start such projects or share some information.
Check the readme.md of the git repo for instructions.
But from experience, the cloned project should have a package.json.
In terminal at the root of the project run npm install to install necessary dependencies.
Then check if npm start is set up properly inside the 'Scripts' object in your package.json
Finally run npm start
This should do it for you, but most attention should paid to instructions inside README.md provided by developer.
Inside package.json
edit "start" to this code:
"scripts": {
"start": "react-scripts start",
I am learning to react. The version I installed is 16. I installed prop-types via npm after I got an error that 'react-scripts' is not recognized as an internal or external command, operable program or batch file."
It is an error about react-scripts file missing in your node modules directory at the time of installation.
Now, you can add manually this via the command:
npm install react-scripts
I had the same issue, resolved by simply running following command in the project root folder -
npm install react-scripts --save
If none of the above solutions works and you have already installed the "react-scripts" package
using
npm install react-scripts --save
You can try the below solution to run the application.
You should see the following in your package.json file
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
}
The script : "start": "react-scripts start" is linked to the
file : nodemon node_modules/react-scripts/scripts/start.js
which is used to start the project in the development env
Try to start the project directly using the below commands:
node node_modules/react-scripts/scripts/start.js
or if you have nodemon installed then try
nodemon node_modules/react-scripts/scripts/start.js
Hope this helps :)
If it doesn't get resolved even after running
npm install
OR
npm install react-scripts
Run:
node node_modules/react-scripts/scripts/start.js
Or use node js command-line tool and do npm install and npm start
This solved the problem for me
Simply remove node_modules folder and run npm install
I found the community answer, which is perfect solution
I just had this issue and this solution worked just fine.
run:
npm install react-scripts
that should solve it... Enjoy!!!
Just type npm install and after that run npm start. This solved the problem for me.
One of the causes of this issue is corrupted PATH and the only fix I found for that issue was to (re)install NVM and let the installer take control over the installed Node version when it asks to do so and it will fix the PATH for you. In my case that was the fix.
deleting the node_modules folder and the *.lock file then running npm install in the project directory through the terminal worked.
I tried with yarn install and it worked too after removing the mentioned files above.
It's quite common problem.
Do the following steps:-
npm audit The message will be like - 7 vulnerabilities (1 low, 6 high)
You will get the vulnerabilities, and now fix it with
npm audit fix or npm audit fix --force will prompt message like this
removed 4 packages, changed 82 packages, and audited 1623 packages in 7s
found 0 vulnerabilities
Problem Solved,
Happy Hacking
Resolved by running the following command:
yarn add react-scripts
For this error you just have to delete lock file and use command yarn
You just have to install React Script Again.
You just need to run the command npm i react-scripts and then run npm start
this error has happened to me in mern stack, and took around 3h to fix it:
in the end, this issue because the current node version is not the same I was used to creating the project for the first time. I hope this proposition helped someone in the future.
Hello I'm learning the MERN stack as well(wise use of quarantine time right? )
Anyways, I'm using WINDOWS 10, and I have the same error as well.
I tried react-scripts start and react-scripts is not recognized as an internal command
I did a bit of googling and found out that you need to
npm install react-scripts -g <- notice the -g (stands for global? I think? )
I hope this helps :>
Just go to the Terminal and on the directory which you start your server. TYPE npm install react-scripts
you will be good to go
I was trying to use 'nodemon server' then had the same error.
When I tried 'npx nodemon server', it worked.
Try to use 'npx' in front of 'npm'
Instead of writing react-scripts start just write npm start.
I tried following the exact instructions listed in the react documentation on how to deploy a working app to github pages. When I ran npm run deploy. It kept failing at the gh-pages -d build saying that the 'gh-pages' is not an internal or external command. I made sure I had the latest versions of node and npm installed
I had installed gh-pages using the -g tag to make it globally available. Tried adding to the system path variable leading to the node modules folder where i knew gh-pages was loaded. Still nothing.
Finally i tried running it from the git bash window instead of the cmd terminal. This hadn't occurred to me at first as all of the other npm commands worked. Don't know why this fixed things but it did. Just posting this so somebody else might be spared the pain
I had the same issue but finally managed to make it work. The main issue was that I hadn't installed Git for Windows, but I took some extra steps to make sure everything works fine.
Download and install Git for Windows from here
Run npm cache clean to clean npm cache
Run npm install npm#latest -g to install the latest version of npm
Add "homepage" : "http://myname.github.io/myapp", to
"package.json" file and replace the URL with correct GitHub pages URL. If you are not sure about the URL, open the project repository in the browser and go to "Settings" tab. Scroll down and find correct URL under "GitHub Pages".
Run npm install --save-dev gh-pages to install gh-pages module
Add the following 2 lines to "scripts" object in "package.json" file:
"predeploy": "npm run build",
"deploy": "gh-pages -d build"
Finally, run npm run deploy to create an optimized production
build and deploy it on GitHub pages. If you haven't logged in to
Github for windows app before, Github app pops up and asks you to enter your username and password. When you've done that the deploy process will continue and uploads the production build on GitHub pages.
Hope that helps, happy coding.
If it says this, then node_modules/.bin/gh-pages doesn't exist (no, you don't need to install it globally). If it doesn't exist, then it means you either forgot to run npm install --save-dev gh-pages, or something went wrong during the installation.
I would not recommend installing it globally (although looks like it worked in your case).