Unable to install node-sass in my project

Try this

sudo npm install -g --unsafe-perm node-sass --save

Uninstall node-sass: npm uninstall node-sass Delete package-lock.json, and clean the cache: npm cache clean --force, then do npm update, npm install, npm update. then again try to install node sass: npm install node-sass.

If this doesn't work, Try to rebuild node-sass:

npm rebuild node-sass

If that too doesn't work then i suggest to delete package-lock.json, node-modules and npm cache folder and do npm install , to install all your dependencies again. make sure you have a package.json file with all your dependencies listed.

The package-lock.json file has some issues(it doesn't update when package.json changes) as mentioned here:https://github.com/npm/npm/issues/16866 "Touching package.json by hand may make your package.json to be incompatible with package-lock.json". do npm update to update the package-lock.json file. to completely disable package-lock creation: npm config set package-lock false

Update (16 july 2022): As node-sass is depricated(https://www.npmjs.com/package/node-sass), it is recommended to use dart-sass instead and upgrade the node version to v16 at least.