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Question

When running grunt build and grunt serve the following warning is coming :

Warning: You need to have Ruby and Compass installed and in your system PATH for this task to work. 
Use --force to continue.

Aborted due to warnings.

grunt version:

grunt-cli v0.1.13
grunt v0.4.5

Operating System:

Windows 7

How to resolve this warning ? Is Ruby and Compass are required or without these I can proceed ?

Answer 1

It depends on your Gruntfile, probably you have to install ruby and compass to execute your tasks.

To install ruby in Windows you need to download the installer in RubyInstaller for Windows . Do not forget to open the installer as a administrator.

Then, to install compass you need sass and compass. Try it:

gem install sass
gem install compass

It should be fix your problem.

Answer 2

Try to install the follwing packages with NPM

 npm install grunt-contrib-sass ruby grunt-sass sass -g

If this doesn't work try installing Ruby on your environment.