Failed at the node-sass@4.11.0 postinstall script. Cannot manage to run this

reactjs npm node-modules node-sass

Unless you're working on some sort of shared project that has strict requirements you can do the following to overcome the issue:

1.) Delete your package.lock file - which indicates the versions to be locked at.

2.) Delete your node_modules folder which contains all the original installations and C++ binary compilations.

3.) Then npm install it all back and npm rebuild for good measure.

reactjs npm node-modules node-sass

It looks like this is documented on the Node-Sass page in NPM. Upgrade to Node-Sass v 4.12.0 and it will work with Node 12.

reactjs npm node-modules node-sass

try this command it should work successfully

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

it work for me

CodeHunter