npm install ->Failed at the node-sass@4.5.0 postinstall script

Question

I\'m trying to do npm install and an error appears :

Failed at the node-sass@4.5.0 postinstall script.

I tried to delete no

Answer 1

Uninstall current npm and install lower versions, it is a common error if version didn't match, downgrading node/npm will mostly fix this kind of issues

npm install -g npm@4.6.1

Answer 2

Just Try with this command hope it will very helpful. it's working for me

sudo npm install -g node-sass@4.5.0 --unsafe-perm=true --allow-root

Answer 3

use this flag --unsafe-perm=true

sudo npm i gulp-sass -ES --unsafe-perm=true

Answer 4

Got the same problem (node v10.3.0, ionic 3.13.0). This worked :

• Delete package-lock.json,
• Delete node_modules folder,
• Run npm install again.

Answer 5

The following steps worked for me

npm install -g node-sass@4.5.0 --unsafe-perm=true --allow-root

npm cache clean


npm install

Answer 6

The minimum version of node-sass that supports Node 8 is 4.5.3. You'll need to upgrade your node-sass or downgrade your Node version. Ionic may also have separate issues since it isn't a tested platform with node-sass.