compass:server not found when running `grunt server`

Question

The problem

grunt server outputs this:

Warning: Task "compass:server" not found.

I uploaded Gruntfile.js here: https://gist.github.com/ComFreek/7289648
That's the default file I got after creating a new Yeoman project.

---

Details

I am reading Building Web Apps With Yeoman And Polymer and following the described console commands to run.

My system:

• Windows 8.1 Pro 64-bit
• NodeJS 0.10.21
• NPM 1.3.11

I've already executed these commands:

npm install -g yo
npm install generator-polymer -g

yo polymer

grunt server told me that I had to install Ruby and Compass.

• I installed Ruby from here: http://rubyinstaller.org/
  After installing, I also successfully whether Ruby has really been registered in the PATH.

• I used NPM for installing Compass:

  npm install grunt-contrib-compass --save-dev -g
  

  (I tried a local and global install of Compass. Neither of them worked.)

This is the exact output of grunt:

D:\test>grunt server
Running "server" task
Warning: Task "compass:server" not found. Use --force to continue.

Aborted due to warnings.

Elapsed time
server  4ms
Total   4ms

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It works now...

Unfortunately, I still don't know the exact cause. I went through all of my instructions above again, and it just worked out of the box.

In any case, I recommend updating all packages. My version numbers are (last edited: 02.02.14):

[NodeJS v.0.10.24]
[NPM 1.3.21]
[grunt-cli v0.1.11]
[grunt v0.4.2]

Answer 1

I had the same problem but it was fixed after I've installed Ruby's compass:

# gem install compass

Hint: gem is the package manager for Ruby, so Ruby should be existing in the system.

For Redhat's based linux systems, you can use the following to install Ruby and gem:

# yum install gcc ruby-devel rubygems
# gem install compass

For Debian's based linux systems, you can check this