React: npm run build error

[yuvraj88]

I am getting an error while run command
npm run build

Creating an optimized production build...
Failed to compile.

Cannot set property 'value' of undefined
CompileError: Begins at CSS selector undefined

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] build: react-scripts build
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] build 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/macbook/.npm/_logs/2020-01-03T12_25_17_735Z-debug.log
S-MacBook-Air:account-opening-frontend macbook$

My package.json

{
"name": "account-opening",
"version": "0.1.0",
"author": {
"name": "Sourabh Parmar"
},
"private": true,
"dependencies": {
"@material-ui/core": "^3.9.2",
"@material-ui/icons": "^3.0.2",
"axios": "^0.18.1",
"browserslist": "^4.8.3",
"date-fns": "^1.30.1",
"detect-browser": "^4.5.0",
"material-ui-pickers": "^2.2.4",
"moment": "^2.24.0",
"react": "^16.8.2",
"react-cropper": "^1.2.0",
"react-datepicker": "^2.8.0",
"react-dom": "^16.8.2",
"react-facebook-pixel": "^0.1.3",
"react-ga": "^2.6.0",
"react-helmet": "^5.2.0",
"react-html5-camera-photo": "^1.2.9",
"react-imgpro": "^1.4.1",
"react-modal": "^3.11.1",
"react-overlays": "^1.2.0",
"react-redux": "^6.0.1",
"react-router": "^4.3.1",
"react-router-dom": "^4.3.1",
"react-scripts": "^3.3.0",
"redux": "^4.0.1",
"redux-saga": "^1.0.2",
"secure-ls": "^1.2.5"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject",
"zip": "gzip -r build"
},
"devDependencies": {
"eslint-config-prettier": "^3.3.0",
"eslint-plugin-prettier": "^2.6.2",
"lint-staged": "^7.2.2",
"prettier": "^1.14.2"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": [
">0.2%",
"not dead",
"not ie <= 11",
"not op_mini all"
]
}

Complete Log

0 info it worked if it ends with ok
1 verbose cli [ '/usr/local/bin/node', '/usr/local/bin/npm', 'run', 'build' ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [ 'prebuild', 'build', 'postbuild' ]
5 info lifecycle [email protected]~prebuild: [email protected]
6 info lifecycle [email protected]~build: [email protected]
7 verbose lifecycle [email protected]~build: unsafe-perm in lifecycle true
8 verbose lifecycle [email protected]~build: PATH: /usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/Users/macbook/arit-projects/ao-checkoutysc/account-opening-frontend/node_modules/.bin:/Users/macbook/.cargo/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Users/macbook/.cargo/bin
9 verbose lifecycle [email protected]~build: CWD: /Users/macbook/arit-projects/ao-checkoutysc/account-opening-frontend
10 silly lifecycle [email protected]~build: Args: [ '-c', 'react-scripts build' ]
11 silly lifecycle [email protected]~build: Returned: code: 1 signal: null
12 info lifecycle [email protected]~build: Failed to exec build script
13 verbose stack Error: [email protected] build: react-scripts build
13 verbose stack Exit status 1
13 verbose stack at EventEmitter. (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:332:16)
13 verbose stack at EventEmitter.emit (events.js:193:13)
13 verbose stack at ChildProcess. (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack at ChildProcess.emit (events.js:193:13)
13 verbose stack at maybeClose (internal/child_process.js:1001:16)
13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:266:5)
14 verbose pkgid [email protected]
15 verbose cwd /Users/macbook/arit-projects/ao-checkoutysc/account-opening-frontend
16 verbose Darwin 18.6.0
17 verbose argv "/usr/local/bin/node" "/usr/local/bin/npm" "run" "build"
18 verbose node v11.13.0
19 verbose npm v6.13.4
20 error code ELIFECYCLE
21 error errno 1
22 error [email protected] build: react-scripts build
22 error Exit status 1
23 error Failed at the [email protected] build script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

[bvaughn]

This looks like something related to create-react-app? If so, that project has a different repository and is typically maintained by a different set of people, so you'll want to file issues there:
https://github.com/facebook/create-react-app/

That being said, I don't think you've provided enough info for this bug either. You should probably share the full source code (not just the package.json).

[yuvraj88]

Got the error

the issue was in my CSS
@media all and(max-width: 1024px) {
}

I left it blank

[bvaughn]

Glad you got it sorted out.

[nermin99]

I left it blank

Do you mean that the problem was that you had an empty ruleset or that it was the solution?

[yuvraj88]

I left it blank

Do you mean that the problem was that you had an empty ruleset or that it was the solution?

Yes the problem was empty ruleset