How to solve this issue when run react app ?

ahmed elbarbary

6y2.5kReact

I work on react App when I run it I get error

I dont know this error on which place and how to solve it

so can any one help me please ?

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
D:\ReactApp>cd client-app/
D:\ReactApp\client-app>npm start
> [email protected] start D:\ReactApp\client-app
> react-scripts start
Starting the development server...
events.js:187
throw er; // Unhandled 'error' event
^
Error: spawn powershell ENOENT
←[90m at Process.ChildProcess._handle.onexit (internal/child_process.js:264:19)←[39m
←[90m at onErrorNT (internal/child_process.js:456:16)←[39m
←[90m at processTicksAndRejections (internal/process/task_queues.js:80:21)←[39m
Emitted 'error' event on ChildProcess instance at:
←[90m at Process.ChildProcess._handle.onexit (internal/child_process.js:270:12)←[39m
←[90m at onErrorNT (internal/child_process.js:456:16)←[39m
←[90m at processTicksAndRejections (internal/process/task_queues.js:80:21)←[39m {
errno: ←[33m-4058←[39m,
code: ←[32m'ENOENT'←[39m,
syscall: ←[32m'spawn powershell'←[39m,
path: ←[32m'powershell'←[39m,
spawnargs: [
←[32m'-NoProfile'←[39m,
←[32m'-NonInteractive'←[39m,
←[32m'–ExecutionPolicy'←[39m,
←[32m'Bypass'←[39m,
←[32m'-EncodedCommand'←[39m,
←[32m'UwB0AGEAcgB0ACAAIgBgACIAaAB0AHQAcAA6AC8ALwBsAG8AYwBhAGwAaABvAHMAdAA6ADMAMAAwADAAYAAiACIA'←[39m
]
}
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:
npm ERR! C:\Users\Ahmed-Salah\AppData\Roaming\npm-cache\_logs\2020-09-25T14_46_14_041Z-debug.log
D:\ReactApp\client-app>

6 Replies

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Siddharth Gajbhiye6y ago
After changing the version number please do npm install
ahmed elbarbary6y ago
thanks for reply
So Could you please change react-scripts from 3.4.3 to 1.1.4
to change it only write version number on package.json
or what i do
Siddharth Gajbhiye6y ago
Hi Ahmed

So Could you please change react-scripts from 3.4.3 to 1.1.4

I tried this and it worked for me

Please try this one and let me know

Thanks
ahmed elbarbary6y ago
package.json as below :
{
  "name": "client-app",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@aspnet/signalr": "^1.1.4",
    "@testing-library/jest-dom": "^4.2.4",
    "@testing-library/react": "^9.5.0",
    "@testing-library/user-event": "^7.2.1",
    "@types/cropperjs": "^1.3.0",
    "@types/jest": "^24.9.1",
    "@types/node": "^12.12.62",
    "@types/react": "^16.9.49",
    "@types/react-dom": "^16.9.8",
    "@types/react-infinite-scroller": "^1.2.1",
    "@types/react-router-dom": "^5.1.5",
    "@types/react-widgets": "^4.4.3",
    "@types/revalidate": "^1.1.2",
    "@types/uuid": "^7.0.4",
    "axios": "^0.19.2",
    "date-fns": "^2.16.1",
    "final-form": "^4.20.1",
    "mobx": "^5.15.7",
    "mobx-react-lite": "^1.5.2",
    "react": "^16.13.1",
    "react-cropper": "^1.3.0",
    "react-dom": "^16.13.1",
    "react-dropzone": "^11.2.0",
    "react-final-form": "^6.5.1",
    "react-infinite-scroller": "^1.2.4",
    "react-router-dom": "^5.2.0",
    "react-scripts": "^3.4.3",
    "react-toastify": "^5.5.0",
    "react-widgets": "^4.6.0",
    "react-widgets-date-fns": "^4.1.1",
    "revalidate": "^1.2.0",
    "semantic-ui-react": "^0.88.2",
    "typescript": "^3.9.7",
    "uuid": "^7.0.3"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "postbuild": "mv build../API/wwwroot",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}
Siddharth Gajbhiye6y ago
Hi ahmed

I was also working on reactjs project and till i have seen many errors and fixed all but i need to know what is version u are using for react and react script.
Sometimes i found webpack error and sometimes version error.

So please share package.js file so that i can check and help .
Rajanikant Hawaldar6y ago
check path variable, so u have to add it to the PATH: C:\Windows\System32;