I get this error when I run npm start.
npm ERR! Missing script: "start"
npm ERR! Did you mean one of these?
npm ERR! npm star # Mark your favorite packages
npm ERR! npm stars # View packages marked as favorites
npm ERR! To see a list of scripts, run:
npm ERR! npm run
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\USER\AppData\Local\npm-cache\_logs\2022-04-28T13_04_19_260Z-debug.log
package.json has various sections, scripts is one of them, which allows you to write npm scripts which we can run using npm run <script-name>. The error you're getting is because your start script is missing in that section.
For a node app, your package.json file should look similar to this.
{
"name": "server",
"version": "1.0.0",
"description": "",
"main": "app.js",
"scripts": {
"start": "node app.js",
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"body-parser": "^1.20.0",
"cors": "^2.8.5",
"express": "^4.17.3"
}
}
In the above code, focus on the scripts section. The following line is missing in your package.json file.
"scripts": {
"start": "node app.js",
},
Add this line and you're good to go.
Option_1: Control inside file "package.json":
"scripts": {
"start": "what command is here?",
},
Option_2: Control Terminal (folder) where you write command OR open the responding terminal for your project: right-click
on the project name -> "Open in integrated Terminal"
You have to put what command you need npm to run when you give npm start.
You have to write node index.js in scripts.start in your package.json file
Related
I wrote the script "style", but for some reason does not want to execute it.
Using the npm run command, you can just execute the script "test": "echo "Error: no test specified" && exit 1"
My package.json is below, as well as the full error message when I run a command:
{
"name": "plants",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"style": "sass sass/style.scss sass/style.css",
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC"
}
here I am trying to run a sktipt:
npm run style
npm ERR! Missing script: "style"
npm ERR!
npm ERR! To see a list of scripts, run:
npm ERR! npm run
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\GRAFIK548\AppData\Local\npm-cache\_logs\2022-12-28T06_18_17_306Z-debug-0.log
and here I look at what scripts can be run:
$ npm run
Lifecycle scripts included in plants#1.0.0:
test
echo "Error: no test specified" && exit 1
in general, I'm trying to connect sass via json
thank you very much for any answer!!
NPM err missing script fix
I used to get this error a lot on my old computer. The easiest fix I found that worked was to just
Try to use the absolute path of the file in your JSON.
I'm newbie to react js.Trying to run a simple app and getting this error and can't figure out what's wrong
D:\React app\react-app1>npm start
npm ERR! Missing script: "start"
npm ERR!
npm ERR! Did you mean one of these?
npm ERR! npm star # Mark your favorite packages
npm ERR! npm stars # View packages marked as favorites
npm ERR!
npm ERR! To see a list of scripts, run:
npm ERR! npm run
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Muralidharan\AppData\Local\npm-cache\_logs\2022-05-29T08_51_37_315Z-debug-0.log
This is package.json file
{
"name": "react-app1",
"version": "0.1.0",
"private": true,
"dependencies": {
"react": "^18.1.0",
"react-dom": "^18.1.0",
"react-scripts": "5.0.1"
}
}
Anything wrong with installation? or outdated version something like that?
This happens becaue you have no script called "start" in your package.json file. Here is an example of a package.json file with such script:
{
"name": "your-project",
"version": "1.0.0",
"description": "",
"main": "main.js",
"scripts": {
"start": "node main.js"
},
"author": "Muralidharan",
"dependencies": {
}
}
add this to your package.json
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject",
},
start is the command you need that trigger react-script to run your project
build, test and eject are other command you will need for development process
I'm trying to install npm and I keep getting errors. Initially the problem was I needed a package-lock.json file and package.json file and that was solved by typing "npm init" into the terminal.
Then when trying to run "npm start" it said I was missing the start script. So I opened the package.json file to add it as shown below:
{
"name": "arvinder",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"start": "node index.js"
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC"
}
Now I'm getting the following errors:
Arvinders-MacBook-Air:~ Arvinder$ npm start
npm ERR! file /Users/Arvinder/package.json
npm ERR! code EJSONPARSE
npm ERR! JSON.parse Failed to parse json
npm ERR! JSON.parse Unexpected string in JSON at position 137 while parsing '{
npm ERR! JSON.parse "name": "arvinder",
npm ERR! JSON.parse "version": "1.'
npm ERR! JSON.parse Failed to parse package.json data.
npm ERR! JSON.parse package.json must be actual JSON, not just JavaScript.
npm ERR! A complete log of this run can be found in:
npm ERR! /Users/Arvinder/.npm/_logs/2020-07-24T16_26_18_155Z-debug.log
I'm not sure where the error is in the json file or why it can't parse it so if anyone could help point out a solution that would be greatly appreciated.
Seems like you're missing a comma in line 7, after "start": "node index.js". Here's the correct one:
{
"name": "arvinder",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"start": "node index.js",
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC"
}
I recommend you to install an extension for your IDE that can catch syntax errors on JSON files.
I suggest you use vscode.
It will throw an error when you missing a comma.
For example:
the example of missing a comma
i did a fresh "npm init". put entry point : "index.html"
then installed lite-server : npm install lite-server --save-dev
also updated the package.json and I Uninstalled, reinstalled tried everything but it's not working and
also tried npm cache clean --force but it's not working. can any one help with this error.
{
"name": "git-test",
"version": "1.0.0",
"description": "",
"main": "index.html",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"start": "npm run lite",
"lite": "lite-server"
},
"author": "Sateesh",
"license": "ISC",
"dependencies": {
"lite-server": "^2.5.4"
}
}
But when I did "npm start" , getting this error
git-test#1.0.0 start D:\Coursera\git-test
> npm run lite
'npm' is not recognized as an internal or external command,
operable program or batch file.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! git-test#1.0.0 start: `npm run lite`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the git-test#1.0.0 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! C:\Users\sai\AppData\Roaming\npm-cache\_logs\2020-06-05T10_20_11_723Z-debug.log
I was too facing the same issue after a system shutdown, hence this worked for me:
First uninstall the current local lite-server in node_modules
npm uninstall lite-server
Install lite-server globally and try running the same command
npm install -g lite-server
then hit:
npm start
This fixed the issue for me, thank you
Here's my Json file script if you want to have a look
"scripts": {
"start": "npm run lite",
"test": "echo \"Error: no test specified\" && exit 1",
"lite": "lite-server"
},
You don't seem to have node/npm installed and configured properly (PATH issues).
I would suggest you try to re-install Node.js using the official instructions for your platform (https://nodejs.org/en/download/) or by using a Node.js version manager like nvm (https://github.com/nvm-sh/nvm) or n (https://github.com/tj/n).
Using nvm or n, will allow you to dynamically switch Node.js version without having to re-install everything from scratch.
Just install the live-server globally,i think that should solve the issue.
sudo npm install --global lite-server
And in your package.json file you can change a little bit.
{
"name": "git-test",
"version": "1.0.0",
"description": "",
"main": "index.html",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"start": "lite-server",
},
"author": "Sateesh",
"license": "ISC",
"dependencies": {
"lite-server": "^2.5.4"
}
}
After this run this on terminal
npm start
I think this should help :)
I had a similar issue,yarn start worked for
I have a package.json file set up with the following:
...,
"scripts": {
"start": "node index.js",
"test": "mocha"
},
...
So I'm trying to run it with npm start. Unfortunately, it's giving me the following error output:
npm[7444]: src\node_file.cc:1599: Assertion `args[1]->IsInt32()' failed.
1: 00007FF75D44121A v8::internal::GCIdleTimeHandler::GCIdleTimeHandler+4810
2: 00007FF75D41A5B6 node::MakeCallback+4518
3: 00007FF75D41A66F node::MakeCallback+4703
4: 00007FF75D3DF663 uv_loop_fork+34595
5: 00007FF75DC45782 v8::internal::OptimizingCompileDispatcher::Unblock+60562
6: 00007FF75DC46C1D v8::internal::OptimizingCompileDispatcher::Unblock+65837
7: 00007FF75DC45C79 v8::internal::OptimizingCompileDispatcher::Unblock+61833
8: 00007FF75DC45B5B v8::internal::OptimizingCompileDispatcher::Unblock+61547
9: 000002E4183DC5C1
npm ERR! code ELIFECYCLE
npm ERR! errno 134
npm ERR! c4sk#1.0.0 start: `node index.js`
npm ERR! Exit status 134
npm ERR!
npm ERR! Failed at the c4sk#1.0.0 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! C:\Users\Steven\AppData\Roaming\npm-cache\_logs\2019-01-11T04_52_55_255Z-debug.log
For reasons I cannot begin to fathom, this is only happening on one machine. Also, while npm start fails with this error, simply skipping npm and running node index.js works fine.
All machines have fresh installs of Node.js v10.15.0
What ... on earth?
In case it would help, here's my package.json:
{
"name": "c4sk",
"version": "1.0.0",
"description": /**/,
"main": "index.js",
"scripts": {
"start": "node index.js",
"test": "mocha"
},
"repository": {
"type": "git",
"url": "/**/"
},
"author": "Steven Kitzes",
"license": "ISC",
"bugs": {
"url": "/**/"
},
"homepage": "/**/",
"devDependencies": {
"mocha": "^5.2.0"
},
"dependencies": {
"readline-sync": "^1.4.9"
}
}
Update: I have traced the problem down to the readline-sync package (or perhaps one of its dependencies). I switched to another package for CLI input (the prompt package) and was able to get my application going. The next time I have access to my home machine I will update with the logs requested in the comments to see if we can get to the bottom of the issue with readline-sync.
Downgrade to node version 14. You can use nvm to manage node versions.