PS C:\Users\LENOVO\Desktop\HTML PROJECTS\React\NewTodo-App> npm start
npm ERR! missing script: start
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\LENOVO\AppData\Roaming\npm-cache_logs\2021-09-05T09_29_42_788Z-debug.log
I keep getting that error each time I run npm start
go to your package . json and add this
"scripts": {
"start": "node index.js"
}
Related
I work on a React project within the Intellij IDE. But my project fails when I try to start it with npm start. The error code tells me that the critical point is the starting of the start script in the package.json.
I already tried the most often given advice here: reinstall node.js, node_modules. But this does not work for me.
Thank you already for looking at my problem.
Here is the error code in the terminal.
VXN5155:dhbw-engineering ThomasA$ npm start
> dhbw-engineering#0.1.0 start /Users/ThomasA/Desktop/Uni/3semester/Sw-:Webengineering/ProjektPraxisSwEngineering/dhbw-engineering
> react-scripts start
sh: react-scripts: command not found
npm ERR! code ELIFECYCLE
npm ERR! syscall spawn
npm ERR! file sh
npm ERR! errno ENOENT
npm ERR! dhbw-engineering#0.1.0 start: `react-scripts start`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the dhbw-engineering#0.1.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /Users/ThomasA/.npm/_logs/2020-09-17T08_03_23_911Z-debug.log
Edit: Below are the scripts defined in the scripts section of my package.json:
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
Run chmod +x node_modules/.bin/react-scripts.
Then run npm start. It should work
I had same issue with npm start in react project just after create-react-app.
I fixed it by:
Creating .env file in my react app root directory.
Then adding SKIP_PREFLIGHT_CHECK=true to the .env file.
This fixed the problem.
Then npm start or yarn start it should work.
I've been learning react for about two weeks, when suddenly npm start won't run. This is what I get instead:
sh: react-scripts: command not found
npm ERR! code ELIFECYCLE
npm ERR! syscall spawn
npm ERR! file sh
npm ERR! errno ENOENT
npm ERR! recipe-app#0.1.0 start: `react-scripts start`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the recipe-app#0.1.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /Users/Michelle/.npm/_logs/2020-07-29T14_35_20_988Z-debug.log
After a ton of googling I tried
npm install -g npm#latest but the permission was denied.
Deleted and reinstalled node several times, tried using Homebrew, etc, but nothing worked.
Edit: Found the solution!
Npm couldn't find react-scripts, so I had to change the scripts in package.json to
"start": "node_modules/react-scripts/bin/react-scripts.js start".
You need to install react-scripts
npm install react-scripts
The first line of the logs you just sent indicates your computer doesn't know the command react-scripts.
It means you need to install it.
When you use the -g option with npm install, it means you want to install globally the package, setting the package accessible for every user on your computer. That's why you have a permission error. You can solve this by adding sudo before the command maybe or running it with a elevated user.
It's not mandatory to install the package globally.
I suppose your package.json file contains a script named start starting with react-scripts.
If you install the react-scripts package with npm install react-scripts, you'll find the binary under node_modules/.bin/react-scripts.
Then you can replace in your start script configuration react-scripts with ./node_modules/.bin/react-scripts.
An example of a package.json file:
{
"name": "myapp",
"version": "1.0.0",
...
"scripts": {
...
"start": "./node_modules/.bin/react-scripts [...]",
...
},
...
}
running "npm install react-scripts" even if I had before, worked for me
I am trying to run 'npm run build' in the terminal of parser written in React. But whenever I do this I get an error inline
> matrix#1.0.0 build E:\work\Parser\parser
> ./node_modules/webpack-cli/bin/cli.js --mode=development
'.' is not recognized as an internal or external command,
operable program or batch file.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! matrix#1.0.0 build: `./node_modules/webpack-cli/bin/cli.js --mode=development`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the matrix#1.0.0 build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm WARN Local package.json exists, but node_modules missing, did you mean to install?
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\criti\AppData\Roaming\npm-cache\_logs\2019-12-18T08_21_16_082Z-debug.log
This happens only in windows.
When i searched for the
./node_modules/webpack-cli/bin/cli.js --mode=development
in package.json I found this to be written as
"build": "./node_modules/webpack-cli/bin/cli.js --mode=development",
"build:dev": "./node_modules/webpack-cli/bin/cli.js --mode=developement",
"build:prod": "./node_modules/webpack-cli/bin/cli.js --mode=production",
"build:watch": "./node_modules/webpack-cli/bin/cli.js --watch",
"build-server": "./node_modules/webpack-cli/bin/cli.js ./parser.js -o ./parser_server.bundle.js --target='node'",
What is this issue ?
You don't need to put ./node_modules/webpack-cli/bin/ on each command, simply put webpack --mode development.
Assuming you have npx installed, try this in the command line: npx webpack --mode=development
I tried to deploy a react app to GitHub pages...
Commands on package.json:
"predeploy": "npm run build",
"deploy": "gh-pages -d build",
and received this error:
The "file" argument must be of type string. Received type undefined
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! my-app#0.1.0 deploy: `gh-pages -d build`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the my-app#0.1.0 deploy script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
It was supposed to deploy.
I've resolved mine. Newer version 2.1 has some issue. Revert back to 2.0.1.
Reinstall Github pages with a specific version:
npm uninstall gh-pages
npm i gh-pages#2.0.1
npm run deploy // as usual
Hope that helped. :)
In package.json devDependencies I have webpack-dev-server installed:
"webpack-dev-server": "3.2.1"
but when I run the start script, which looks as follows:
"start": "webpack-dev-server --inline --config demo/webpack.config.js --port 9000 --mode development"
I get this error:
sh: 1: webpack-dev-server: not found
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! your-app#2.0.5 start: `webpack-dev-server --inline --config demo/webpack.config.js --port 9000 --mode development`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the your-app#2.0.5 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
What is the issue here?
Notice that every script you want access in cli, script should be install in your system as globally.
you can install globally every script you want with npm. that way add -g in your command when you want install package.
In your case, you should run this command:
npm install webpack-dev-server -g
after that you can access webpack-dev-server in your command. like your code webpack-dev-server added to start script in your package.json file.
After that, you can run npm install webpack-dev-server --save-dev command to add this package in your node_modules.
Now, you have access webpack-dev-server in your cli. As you write in your start script in your package.json.
My app by default, did a "production" install, which didn't install devDepencies.
I did:
export NODE_ENV=development
before executing npm install and it installed dev dependecies, so now it works.