Store#index中的Sprockets :: CircularDependencyError

Question

Store#index中的Sprockets :: CircularDependencyError

hyp*_*jas 18 ruby ruby-on-rails sprockets

我正在使用Rails第4版手动Agile Web开发,我在rails 3.1中遇到了sprocket css的问题.

代码css是:

http://media.pragprog.com/titles/rails4/code/rails31/depot_e/app/assets/stylesheets/application.css.scss

如果我修改app/assets/stylesheets/aplication.css.scss的css代码,我会抓住下一个错误:

Sprockets::CircularDependencyError in Store#index

Showing /home/ubuntu/Desktop/Depot/app/views/layouts/application.html.erb where line #5 raised:

/home/ubuntu/Desktop/Depot/app/assets/stylesheets/application.css.scss has already been required
Extracted source (around line #5):

2: <html>
3: <head>
4:   <title>Pragprog Books Online Store</title>
5: <%= stylesheet_link_tag "application" %>
6: <%= javascript_include_tag "application" %>
7: <%= csrf_meta_tag %>
8: </head>
Rails.root: /home/ubuntu/Desktop/Depot

Application Trace | Framework Trace | Full Trace
app/views/layouts/application.html.erb:5:in`_app_views_layouts_application_html_erb___1008723970_81658620'

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我不明白为什么如果我修改aplication.css.scss中的边距值或填充值,例如我得到此错误.

非常感谢你.