突然，我在OS X上运行compass时得到以下错误信息:
WARN: Unresolved specs during Gem::Specification.reset:
fssm (>= 0.2.7)
WARN: Clearing out unresolved specs.
Please report a bug if this causes problems.
/Users/carlesandres/.rvm/gems/ruby-1.9.3-p286@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:33:in ``block in setup': You have already activated sass 3.2.9, but your Gemfile requires sass 3.2.8. Using bundle exec may solve this. (Gem::LoadError)
from /Users/carlesandres/.rvm/gems/ruby-1.9.3-p286@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:19:in ``setup'
from /Users/carlesandres/.rvm/gems/ruby-1.9.3-p286@global/gems/bundler-1.3.5/lib/bundler.rb:127:in ``setup'
from /Users/carlesandres/.rvm/gems/ruby-1.9.3-p286@global/gems/bundler-1.3.5/lib/bundler.rb:132:in ``require'
from /Users/carlesandres/.rvm/gems/ruby-1.9.3-p286/gems/compass-0.12.2/bin/compass:26:in ``<top (required)>'
from /Users/carlesandres/.rvm/gems/ruby-1.9.3-p286/bin/compass:23:in ``load'
from /Users/carlesandres/.rvm/gems/ruby-1.9.3-p286/bin/compass:23:in ``<main>'
from /Users/carlesandres/.rvm/gems/ruby-1.9.3-p286/bin/ruby_noexec_wrapper:14:in ``eval'
from /Users/carlesandres/.rvm/gems/ruby-1.9.3-p286/bin/ruby_noexec_wrapper:14:in '
我真的不知道如何解决这个问题。
更新:我正在从Grunt和约曼生成的Gruntfile调用Compass。
尝试在项目中运行compass clean并重新编译。
如果没有帮助，试试:
gem update --system
gem update
bundle install
compass clean
我最终通过更新sass-rails gem解决了这个问题。
bundle update sass-rails
我猜旧的sass-rails gem试图强制sass v.3.2.8，这与实际安装的3.2.9安装版本相冲突。