嗨我在中间人添加动画插件时遇到了问题，是的，我很确定我为指南针安装了动画插件，我在我的宝石列表上看到了它。
如果我在config.rb上添加
require 'animation'
显示错误，这是输出
/cygdrive/d/Main/dot_proj/config.rb:7:in `require': cannot load such file -- animation (LoadError)
from /cygdrive/d/Main/dot_proj/config.rb:7:in `initialize'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/core_extensions/extensions.rb:137:in `instance_eval'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/core_extensions/extensions.rb:137:in `initialize'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/core_extensions/ruby_encoding.rb:22:in `initialize'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/core_extensions/data.rb:35:in `initialize'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/application.rb:188:in `initialize'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/core_extensions/request.rb:56:in `new'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/core_extensions/request.rb:56:in `inst'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/preview_server.rb:73:in `new_app'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/preview_server.rb:154:in `mount_instance'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/preview_server.rb:19:in `start'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/cli/server.rb:73:in `server'
from /usr/lib/ruby/gems/1.9.1/gems/thor-0.15.4/lib/thor/task.rb:27:in `run'
from /usr/lib/ruby/gems/1.9.1/gems/thor-0.15.4/lib/thor/invocation.rb:120:in `invoke_task'
from /usr/lib/ruby/gems/1.9.1/gems/thor-0.15.4/lib/thor.rb:275:in `dispatch'
from /usr/lib/ruby/gems/1.9.1/gems/thor-0.15.4/lib/thor/base.rb:425:in `start'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/cli.rb:77:in `method_missing'
from /usr/lib/ruby/gems/1.9.1/gems/thor-0.15.4/lib/thor/task.rb:29:in `run'
from /usr/lib/ruby/gems/1.9.1/gems/thor-0.15.4/lib/thor/task.rb:126:in `run'
from /usr/lib/ruby/gems/1.9.1/gems/thor-0.15.4/lib/thor/invocation.rb:120:in `invoke_task'
from /usr/lib/ruby/gems/1.9.1/gems/thor-0.15.4/lib/thor.rb:275:in `dispatch'
from /usr/lib/ruby/gems/1.9.1/gems/thor-0.15.4/lib/thor/base.rb:425:in `start'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/lib/middleman-core/cli.rb:22:in `start'
from /usr/lib/ruby/gems/1.9.1/gems/middleman-core-3.0.11/bin/middleman:18:in `<top (required)>'
from /usr/bin/middleman:23:in `load'
from /usr/bin/middleman:23:in `<main>'
这是插件的链接 https://github.com/ericam/compass-animation
我猜我的中间人没有在中间人核心上安装插件？如果是，那么如何向我的中间人添加指南针插件？