Getting this error on Arch Linux with node-sass. I'm using it with gulp-sass.
Node Sass does not yet support your current environment: Linux 64-bit with false
Versions
$ gulp -v
[19:43:15] CLI version 3.9.1
[19:43:15] Local version 3.9.1
$ npm -v
3.9.0
Node
$ node -v
v6.2.0
Even using this command npm rebuild node-sass is not changing anything.

gulp-sassupdates the dependency tonode-sassgithub.com/sass/node-sass/issues/1484 - Pete TNTnode-sassmanually withnpm install node-sass(or by forking thegulp-sassand bumping up the version in the package.json) - Pete TNT