ReactJS. npm run build failed

Question

When i start my app with command npm start all ok, but when i build my app with command npm run build i get error

13 verbose stack Error: [email protected] build: `react-scripts build`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:304:16)
13 verbose stack     at emitTwo (events.js:126:13)
13 verbose stack     at EventEmitter.emit (events.js:214:7)
13 verbose stack     at ChildProcess.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack     at emitTwo (events.js:126:13)
13 verbose stack     at ChildProcess.emit (events.js:214:7)
13 verbose stack     at maybeClose (internal/child_process.js:925:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)

What can be wrong?

EDIT I create my app using command create-react-app myapp. Index.js look like

import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import registerServiceWorker from './registerServiceWorker';
import 'bootstrap/dist/css/bootstrap.css';
import {BrowserRouter} from 'react-router-dom';
ReactDOM.render(
    <BrowserRouter>
        <App/>
    </BrowserRouter>
    , document.getElementById('app'));
registerServiceWorker();

And package.json

{
"name": "mailsender-client",
"version": "0.1.0",
"private": true,
"dependencies": {
"bootstrap": "^4.1.3",
"jquery": "^3.3.1",
"moment": "^2.22.2",
"query-string": "^6.5.2",
"react": "^16.4.1",
"react-dom": "^16.4.1",
"react-router": "^3.2.1",
"react-router-dom": "^4.3.1",
"react-scripts": "1.1.4"
},
"scripts": {
 "start": "react-scripts start",
 "build": "react-scripts build",
"test": "react-scripts test --env=jsdom",
"eject": "react-scripts eject"
}
}

We are all gonna need some debugging information. Are you using create-react-app? Did you change index.js? And what does your package.json look like? — Callat
– Callat, Commented Jul 31, 2018 at 13:43
thank you for response, i find out error, need replace query-string with qs. github.com/facebook/create-react-app/issues/3734 — Aleksandr Zorin
– Aleksandr Zorin, Commented Jul 31, 2018 at 13:59
Great! Now you can post your solution to the problem as an answer, in order to close the question. :) — Jordan Enev
– Jordan Enev, Commented Jul 31, 2018 at 14:05

Antonio Jha · Accepted Answer · 2019-06-29 19:31:54Z

2

Try npm audit fix. This worked for me when I get dependency issues.

answered Jun 29, 2019 at 19:31

Antonio Jha

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Aleksandr Zorin · Accepted Answer · 2018-07-31 15:46:21Z

1

In my case need replace dependency query-string with qs. For details see https://github.com/facebook/create-react-app/issues/3734

answered Jul 31, 2018 at 15:46

Aleksandr Zorin

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Comments

Stepan · Accepted Answer · 2020-01-20 11:53:40Z

0

Also the problem may be caused by existing warnings.

I have such error during npm run build "Treating warnings as errors because process.env.CI = true. Most CI servers set it automatically. Failed to compile"

Get rid of warnings or set this variable to false

answered Jan 20, 2020 at 11:53

Stepan

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