You need to have Ruby and Sass installed and in your PATH for this taskto work

[LorenaGitHub]

Grunt I want to compile sass files to CSS, but it will not let me. I have installed ruby ​​and the sass module and it does not work for me.

Originally posted by @LorenaGitHub in #229 (comment)

[zsoltjanes]

What does console say after this command? ruby -v
Did you try gem install sass?

[amieiro]

I had the same problem and I wrote a post to document it https://www.jesusamieiro.com/you-need-to-have-ruby-and-sass-installed-and-in-your-path-for-this-task-to-work/

[silviuburceadev]

You have 2 options, both without Ruby:

1. Sass as dev dependency npm install --save-dev sass
   Invoke grunt from a npm script, since this will allow npm to add to PATH the node modules that expose binaries, like sass.
2. Sass installed globally npm install -g sass
   Invoke grunt whatever you like.

[jsebastianmr]

I had the same Issue and I installed Ruby and sass gem, finally I reopen the git console and execute the command and it works!

[carlosaraujogonzalez]

I had the same issue and solve it.

Steps to install ruby:
You have to install ruby from https://rubyinstaller.org/downloads/
Then you have to install rubygems from rubygems https://rubygems.org/pages/download. ( I think this step is optional)

Steps to install sass globally
run npm install -g sass

[vlrprbttst]

I had the same problem and I wrote a post to document it https://www.jesusamieiro.com/you-need-to-have-ruby-and-sass-installed-and-in-your-path-for-this-task-to-work/

genius! it worked