Unable to add Compass to a Rails 3.1 app using the Less Framework

I have been unable to add Compass using the Less Framework to my Rails 3.1 app. Both the compass and compass-less-plugin gems are installed and are included in the gemfile as well as the gemfile.lock file under "Dependencies". I run the following command in Terminal, and it doesn't recognize Less Framework.

j(film_repo)$ compass init rails . --using less
No such framework: "less" 

My environment includes rails 3.1.0.rc4 and ruby 1.9.2-head as well as the following gems (among others):

compass 0.11.4 
compass-less-plugin 1.0 
haml 3.1.2 
sass 3.1.4, 3.1.2 
sass-rails 3.1.0.rc4...

I created an issue on Github for the compass-less-plugin https://github.com/wil开发者_开发问答lhw/compass-less-plugin/issues/4 , but it may not be the source of the issue.

Thanks in advance for any guidance and assistance!

I've had the same issue as you, but with Rails 3.0.9 project. What worked for me, is the following:

$ compass init rails -r less . --using less

(notice the -r which requires the less plugin)