How to resolve "You need to have Ruby and Sass installed and in your PATH for this task to work" Warning?

Question

I am in the process of setting up a new Mac for work. I have installed Grunt & Grunt CLI globally. Then I did a npm install inside a project folder to install all dependencies.

No problems so far, but as soon as I try to run the sass:dist task, I get this warning:

Warning: You need to have Ruby and Sass installed and in your PATH for
this task to work. More info:
https://github.com/gruntjs/grunt-contrib-sass Use --force 
to continue.

What I understand is that I need to have Ruby and Sass installed on a more global level for this task to run. As I am still pretty new to working with the terminal, I did a quick search to find out what PATH is - seems like its some system path (that can be changed) where important data is stored.

Does this mean I can simply do a sudo grunt install contrib-sass -g to resolve the issue? And what about Ruby – I always thought its already installed on OS X?

Solution 1

Ok I got it. I just had to install Sass using gem install sass and now everything is fine...couldn't be easier.

Solution 2

If you're on OSX El Capitan or Yosemite on Mac there seem to be an issue installing the gem.

Try

sudo gem install -n /usr/local/bin sass

Solution was from github.

Solution 3

You need to install Ruby and Sass as:

For Ruby use command

sudo apt-get install ruby-full

And for Sass use command

sudo gem install sass

Solution 4

grunt-sass documentation is not very clear. To avoid the need of Ruby, you can try this:

npm uninstall --save grunt-contrib-sass
npm install --save node-sass grunt-sass

Try this, It's work for me.

reference

Solution 5

You need to install Ruby and Sass as:

For Ruby use command

sudo apt-get install ruby-full

And for Sass use command

sudo gem install sass

View more solutions

Comments

[myol]

sudo apt-get install ruby-compass : seems to install both on Ubuntu - Ruby wasn't installed in my case

[Krzysztof Wolny]

On my Mac sudo was required before gem install sass.

[Matt Canty]

This is the same for Windows

[Dragos Rusu]

(Win7) I had to manually add the Ruby bin path into PATH - only afterwards the gem install sass worked.

[stevek-pro]

Works also on Yosemite.

[Maxime Lafarie]

Works well for El Capitan !

[filipst]

Welcome to the Stack Overflow. You should add some more description to your answer. It is not best practice to post answers with just one sentence.

[Danilo Cândido]

I already had ruby installed and only the command sudo gem install sass worked for me.

[Danilo Cândido]

just -> gem install sass

[Alexander Rice]

This is the best answer in 2020. It makes SASS work like a charm and keeps all of the dependencies locally installed via npm. When adapting my code from grunt-contrib-sass to grunt-sass, I needed to make some adjustments to my grunt config, but their usage example made it easy: github.com/sindresorhus/grunt-sass#usage

[Tobias]

Great, thanks for the tip! Had been searching how to get rid of that dependency to Ruby and you answered it. I would however use rather npm install --save-dev instead of --save because you only need sass for development (I just edited this in the answer).

[Sergio Zaharchenko]

But after that, I had to change my Gruntfile.js: const sass = require("node-sass"); grunt.initConfig({ sass: { options: { implementation: sass } } Source: stackoverflow.com/a/68104462/6909703