Error while executing "npm start" command - npm

Question

I installed npm and changed the package.json file so that it can automatically compile the .scss file into a css file when npm start is used. the changes made are as follows.
"scripts": {
"start": "npm run watch:all",
"test": "echo \"Error: no test specified\" && exit 1",
"lite": "lite-server",
"scss": "node-sass -o css/ css/",
"watch:scss":"onchange \"css/*.scss\" -- npm run scss",
"watch:all":"parallelshell \"npm run watch:scss\" \"npm run lite\""
},
but when I run the "npm start" command it returns an error. The error is as follows.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! confusion#1.0.0 watch:all: `parallelshell "npm run watch:scss" "npm run lite"`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the confusion#1.0.0 watch:all 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\DJ\AppData\Roaming\npm-cache\_logs\2020-07-16T15_52_00_182Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! confusion#1.0.0 start: `npm run watch:all`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the confusion#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\DJ\AppData\Roaming\npm-cache\_logs\2020-07-16T15_52_00_229Z-debug.log
please help me solve this problem,
I want to complete my project but this error is in my way.

Answer 1

It is a bug from parallelshell. We will have to manually edit file to fix this error
You need to go to the file:
node_modules/parallelshell/index.js:105
Then change this line:
cwd: process.versions.node < '8.0.0' ? process.cwd : process.cwd(),
To this:
cwd: parseInt(process.versions.node) < 8 ? process.cwd : process.cwd()
Then things will work well