Sprockets :: Environment＃path is deprecated

Question

Sprockets::Environment#path is deprecated 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/sprockets/helpers/rails_helper.rb:119:in `rewrite_asset_path' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_view/asset_paths.rb:29:in `compute_public_path' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/sprockets/helpers/rails_helper.rb:100:in `compute_public_path' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/sprockets/helpers/rails_helper.rb:67:in `asset_path' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/sprockets/helpers/rails_helper.rb:57:in `block in stylesheet_link_tag' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/sprockets/helpers/rails_helper.rb:47:in `collect' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/sprockets/helpers/rails_helper.rb:47:in `stylesheet_link_tag' 
/home/yulong/one/app/views/layouts/application.html.erb:5:in `_app_views_layouts_application_html_erb___567393440_92926490' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_view/template.rb:144:in `block in render' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/activesupport-3.1.0.rc6/lib/active_support/notifications.rb:55:in `instrument' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_view/template.rb:142:in `render' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_view/renderer/template_renderer.rb:52:in `render_with_layout' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_view/renderer/template_renderer.rb:38:in `render_template' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_view/renderer/template_renderer.rb:12:in `block in render' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_view/renderer/abstract_renderer.rb:22:in `wrap_formats' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_view/renderer/template_renderer.rb:9:in `render' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_view/renderer/renderer.rb:36:in `render_template' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_view/renderer/renderer.rb:17:in `render' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/abstract_controller/rendering.rb:120:in `_render_template' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_controller/metal/streaming.rb:250:in `_render_template' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/abstract_controller/rendering.rb:114:in `render_to_body' 
/home/yulong/.rvm/gems/ruby-1.9.2-p290@rails31/gems/actionpack-3.1.0.rc6/lib/action_controller/metal/renderers.rb:30:in `render_to_body' 

否则，当我安装rails时，我得到一个错误“file'lib'not found”，但我解决不了它，我认为它是相对的。

Answer 1

升级到最新的Rails 3.1.rc8，或者您可以等待明天发布的Rails 3.1 final。

Answer 2

最近在Sprockets中引入的这些弃用，在rails-3.1.0-rc7中修复的警告。有关更多详细信息，请参阅https://github.com/rails/rails/issues/2598。