Create-react-app: react-scripts start is giving error

[snkreddy]

Describe the bug

"react-scripts start" is giving error .
It was working fine yesterday. From today it's getting failed.

react-scripts start

Unexpected token {
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: react-scripts start
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] 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:`

Error log

11 silly lifecycle [email protected]~start: Returned: code: 1 signal: null
12 info lifecycle [email protected]~start: Failed to exec start script
13 verbose stack Error: [email protected] start: react-scripts start
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:198:13)
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:198:13)
13 verbose stack at maybeClose (internal/child_process.js:982:16)
13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)

Did you try recovering your dependencies?

Yes .
i tried

rm-rf ./node_modules
npm cache clean -f
npm install
...all such combination

Have you done all these steps and still see the issue?
npm -v ===> 6.13.4
node -v ===> v10.17.0
os ===> mac
And also I tried to copy and use the package.json and package.lock.json and tried in my reop.
Even then it's the same.

Some dependency of react-scripts is badly fucked up.

Important observarion in create-react-app

1) react-scripts build works fine
2) When you clone the repo and do npm install the package.lock.json get updated.
Ideally that should not be the case as far as I know.

What all I searched

I searched all related threads (https://github.com/vuejs/vue-cli/issues/2596 ....) none worked for
me.

My submission would be some version of npm is fucked up because it gave me
unexpected token import with npm 5.0.1

my package.json
{
"name": "flexi",
"version": "1.0.0",
"description": "Flexi app",
"main": "index.js",
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"start-prod": "react-scripts build && node server.js",
"selenium-install": "selenium-standalone install",
"selenium-start": "selenium-standalone start",
"selenium-test": "wdio wdio.conf.js",
"selenium-test-dev": "wdio wdio.conf.dev.js"
},
"repository": {
"type": "git",
"url": "[email protected]:mohithg/flexi.git"
},
"keywords": [
"website"
],
"author": "Mohith G",
"license": "ISC",
"dependencies": {
"caniuse-lite": "1.0.30000974",
"classnames": "2.2.5",
"compute-iqr": "1.1.0",
"copy-to-clipboard": "3.0.8",
"express": "4.16.3",
"filepond-plugin-file-validate-type": "1.1.0",
"formsy-react": "1.1.4",
"griddle-react": "1.13.1",
"highcharts": "7.2.1",
"highcharts-react-official": "2.2.2",
"http-proxy-middleware": "0.20.0",
"json-format": "1.0.1",
"less": "3.10.3",
"lodash": "4.17.5",
"mixpanel": "0.11.0",
"mixpanel-browser": "2.29.1",
"moment": "2.22.2",
"moment-timezone": "0.5.21",
"moment-timezone-all": "0.5.5",
"normalize.css": "8.0.1",
"postcss-loader": "3.0.0",
"react": "16.3.2",
"react-awesome-query-builder": "0.2.52",
"react-collapsible": "2.2.0",
"react-dates": "17.1.0",
"react-dom": "16.3.2",
"react-filepond": "2.0.8",
"react-rangeslider": "2.2.0",
"react-router-dom": "4.2.2",
"react-scripts": "3.3.0",
"react-select": "3.0.8",
"react-spinners": "0.3.2",
"react-tabs": "2.2.2",
"react-times": "3.1.5",
"react-toastify": "4.1.0",
"react-tooltip": "3.6.1",
"recharts": "1.0.0-beta.10",
"socket.io-client": "2.1.1",
"store": "2.0.12",
"superagent": "3.8.3",
"superagent-promise": "1.1.0",
"tz": "0.1.1",
"wdio-helpers": "1.2.4",
"wdio-jasmine-framework": "0.3.5",
"wdio-screenshot": "0.6.0",
"webdriverio": "4.13.2"
},
"devDependencies": {
"@babel/core": "7.7.7",
"@babel/preset-env": "7.7.7",
"@babel/preset-react": "7.7.4",
"babel-loader": "8.0.6",
"babel-plugin-transform-class-properties": "6.24.1",
"babel-plugin-transform-es2015-modules-commonjs": "6.26.2",
"clean-webpack-plugin": "0.1.19",
"cross-env": "5.1.4",
"css-loader": "0.28.11",
"ejs-loader": "0.3.1",
"favicons-webpack-plugin": "0.0.9",
"file-loader": "1.1.11",
"html-webpack-plugin": "3.2.0",
"image-webpack-loader": "4.2.0",
"less-loader": "5.0.0",
"node-sass": "4.8.3",
"sass-loader": "7.0.1",
"selenium-standalone": "6.15.1",
"style-loader": "0.20.3",
"url-loader": "1.0.1",
"wdio-docker-service": "1.3.0"
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
}

[HrvojeRicijas]

Having same problem on a clean vue-cli install

[HrvojeRicijas]

Solved, reinstall newest version of node.js

[videmout]

uninstall node js ,nmp install and rm package-lock.json

[Akum030]

Having the same problem !!!

Try cmd:

echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p

It worked for me !!!
Hope your problem would be _resolved_ by it

[stale[bot]]

This issue has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.

[wwwbrunagon]

Having the same problem !!!

Try cmd:

echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p

It worked for me !!!
Hope your problem would be _resolved_ by it

thankyou, You also very help me!!!!

[Lobana-sky]

Having the same problem !!!

Try cmd:

echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p

It worked for me !!!
Hope your problem would be _resolved_ by it

thanks it was my problem and solved by it

[israteneda]

Having the same problem !!!

Try cmd:

echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p

It worked for me !!!
Hope your problem would be _resolved_ by it

Can you explain more about the error, thank you helped me.

[rohitamu]

I am also facing the same issue. It was working yesterday but not today.

[stale[bot]]

This issue has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.

[stale[bot]]

This issue has been automatically closed because it has not had any recent activity. If you have a question or comment, please open a new issue.