I have installed the latest versions of compass, sass and susy. But still I am getting this error:
Unable to activate susy-2.1.1, because sass-3.2.17 conflicts with sass (~> 3.3.0)
Anyone knows how this Ruby thing works?
This is the list of my installed gems:
*** LOCAL GEMS ***
CFPropertyList (2.2.0)
chunky_png (1.3.0)
compass (0.12.4)
compass-core (1.0.0.alpha.19)
compass-import-once (1.0.4)
compass-rails (1.1.3)
fssm (0.2.10)
libxml-ruby (2.6.0)
multi_json (1.9.2)
nokogiri (1.5.6)
rb-fsevent (0.9.4)
rubygems-update (2.2.2)
sass (3.3.4, 3.3.3, 3.2.17)
sqlite3 (1.3.7)
susy (2.1.1)
If you use Bundler, it will ensure that the gems in your Gemfile are the ones used by your project. So your Gemfile should specify "susy", "~>2.1.1" and "sass", "~>3.3.2", plus any other that you require, such as "breakpoint", "~>2.4.1". It then won't matter what versions are installed inside your Ruby gems folder. When you then do a 'bundle install', Bundler ensures that your project will only use the correct dependencies. This is, of course, a CLI instruction through the terminal. Alternatively, simply do a 'sudo gem uninstall sass -v 3.2.17', if you don't want to use Bundler.
gem install compass --pre
if you ended up uninstalling the sass 3.3.0 gem you should reinstall that first.
The best way without a doubt is to install Susy via the Compass Susy Plugin. This will avoid conflicts with other Compass projects that require the current version.
Commands:
gem install compass
gem install compass-susy-plugin
I'm using Ubuntu server 14.04 and I had the same problem and this is what I have done
- Remove all my gems with
gem uninstall gemname - Install bundler with
sudo apt-get install bundler - Create a Gemfile as @Remy said before. Here is a Getting Started With Bundler Guide
- And finally
bundle install
After that, bundler create a Gemfile.lock where are specified all the needed gems and its versions, so you can use it safely.
https://teamtreehouse.com/forum/cant-make-susy-211-working
User: Iago Wandalsen Prates
gem uninstall compass
gem uninstall sass
gem uninstall susy
gem install susy
gem install compass --pre
来源：https://stackoverflow.com/questions/22576123/unable-to-activate-susy-2-1-1-because-sass-3-2-17-conflicts-with-sass-3-3-0