npm run gulp on root project

Some problems need to settle :

1. error cannot found module "browser-sync

Answer :

Tried these steps. Its work for me.

Globally install gulp.

Next need to install the project’s local dependencies (that’s where it’s looking for browser-sync). To do that,

cd into the project directory and run npm install.

Then try gulp serve.

You can also try following lines

npm i browser-sync --save then

npm start

2. error cannot found module "gulp-sass"

Just do npm update and then npm install gulp-sass --save-dev in your root folder, and then when you run you shouldn't have any issues.

Source

Stackoverflow