Compass无法编译项目中的一个或多个文件：
/Library/Ruby/Gems/2.0.0/gems/compass-1.0.1/lib/compass/commands.rb:14:in `<top (required)>': undefined method `discover_extensions!' for Compass:Module (NoMethodError)
from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Library/Ruby/Gems/2.0.0/gems/compass-1.0.1/lib/compass/exec.rb:7:in `<top (required)>'
from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Applications/CodeKit.app/Contents/Resources/engines/compass/compass/bin/compass:43:in `block in <main>'
from /Applications/CodeKit.app/Contents/Resources/engines/compass/compass/bin/compass:30:in `fallback_load_path'
from /Applications/CodeKit.app/Contents/Resources/engines/compass/compass/bin/compass:41:in `<main>'
看一下上面的错误，当我尝试编译sass文件时，codekit给了我。我有最新版本的sass（Sass 3.4.1）和指南针（指南针1.0.1）我不知道为什么它给我这个错误。
有什么想法吗？提前谢谢。