CSS在Heroku中未加载

Question

我将我的应用程序部署到Heroku，但只加载了assets \ images。 CSS文件（尤其是包含90％CSS的custom.css文件）未被加载。我在本地预编译了这些资产，并没有运气将它们推到Heroku。只加载图像，而不是custom.css文件。

我也注意到在Heroku的日志中一个有趣的错误：

入门GET“/users/css/parallax-slider.css”为77.777.777.77在2013年6月13日2时42分09秒+0000 2013-06-13T02：42：09.016864 + 00：00 app [web.1]：ActionController :: RoutingError（No route matches [GET]“/users/css/parallax-slider.css”）：

为什么它在我的用户控制器文件夹中查找css？这就是为什么应用程序无法加载custom.css文件？

production.rb

App::Application.configure do 
    # Settings specified here will take precedence over those in config/application.rb 

    # Code is not reloaded between requests 
    config.cache_classes = true 

    # Full error reports are disabled and caching is turned on 
    config.consider_all_requests_local  = false 
    config.action_controller.perform_caching = true 

    # Disable Rails's static asset server (Apache or nginx will already do this) 
    config.serve_static_assets = false 

    # Compress JavaScripts and CSS 
    config.assets.compress = false 

    # Don't fallback to assets pipeline if a precompiled asset is missed 
    config.assets.compile = false 

    # Generate digests for assets URLs 
    config.assets.digest = true 

    # Defaults to nil and saved in location specified by config.assets.prefix 
    # config.assets.manifest = YOUR_PATH 

    # Specifies the header that your server uses for sending files 
    # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache 
    # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx 

    # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies. 
    # config.force_ssl = true 

    # See everything in the log (default is :info) 
    # config.log_level = :debug 

    # Prepend all log lines with the following tags 
    # config.log_tags = [ :subdomain, :uuid ] 

    # Use a different logger for distributed setups 
    # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new) 

    # Use a different cache store in production 
    # config.cache_store = :mem_cache_store 

    # Enable serving of images, stylesheets, and JavaScripts from an asset server 
    # config.action_controller.asset_host = "http://assets.example.com" 

    # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added) 
    config.assets.precompile += %w(custom.css hover.css users.css works.css styleie9.css) 

    # Disable delivery errors, bad email addresses will be ignored 
    # config.action_mailer.raise_delivery_errors = false 

    # Enable threaded mode 
    # config.threadsafe! 

    # Enable locale fallbacks for I18n (makes lookups for any locale fall back to 
    # the I18n.default_locale when a translation can not be found) 
    config.i18n.fallbacks = true 

    # Send deprecation notices to registered listeners 
    config.active_support.deprecation = :notify 

    # Log the query plan for queries taking more than this (works 
    # with SQLite, MySQL, and PostgreSQL) 
    # config.active_record.auto_explain_threshold_in_seconds = 0.5 

    #TODO: Edit devise mailer config 
    config.action_mailer.default_url_options = { :host => 'localhost:3000' } 
end 

application.rb中

require File.expand_path('../boot', __FILE__) 

# Pick the frameworks you want: 
require "active_record/railtie" 
require "action_controller/railtie" 
require "action_mailer/railtie" 
require "active_resource/railtie" 
require "sprockets/railtie" 
# require "rails/test_unit/railtie" 

if defined?(Bundler) 
    # If you precompile assets before deploying to production, use this line 
    Bundler.require(*Rails.groups(:assets => %w(development test))) 
    # If you want your assets lazily compiled in production, use this line 
    #Bundler.require(:default, :assets, Rails.env) 
end 

module App 
    class Application < Rails::Application 
    # Settings in config/environments/* take precedence over those specified here. 
    # Application configuration should go into files in config/initializers 
    # -- all .rb files in that directory are automatically loaded. 

    # Custom directories with classes and modules you want to be autoloadable. 
    # config.autoload_paths += %W(#{config.root}/extras) 

    # Only load the plugins named here, in the order given (default is alphabetical). 
    # :all can be used as a placeholder for all plugins not explicitly named. 
    # config.plugins = [ :exception_notification, :ssl_requirement, :all ] 

    # Activate observers that should always be running. 
    # config.active_record.observers = :cacher, :garbage_collector, :forum_observer 

    # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone. 
    # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC. 
    # config.time_zone = 'Central Time (US & Canada)' 

    # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded. 
    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s] 
    # config.i18n.default_locale = :de 

    # Configure the default encoding used in templates for Ruby 1.9. 
    config.encoding = "utf-8" 

    # Configure sensitive parameters which will be filtered from the log file. 
    config.filter_parameters += [:password] 

    # Enable escaping HTML in JSON. 
    config.active_support.escape_html_entities_in_json = true 

    # Use SQL instead of Active Record's schema dumper when creating the database. 
    # This is necessary if your schema can't be completely dumped by the schema dumper, 
    # like if you have constraints or database-specific column types 
    # config.active_record.schema_format = :sql 

    # Enforce whitelist mode for mass assignment. 
    # This will create an empty whitelist of attributes available for mass-assignment for all models 
    # in your app. As such, your models will need to explicitly whitelist or blacklist accessible 
    # parameters by using an attr_accessible or attr_protected declaration. 
    config.active_record.whitelist_attributes = true 

    # Enable the asset pipeline 
    config.assets.enabled = true 

    # Version of your assets, change this if you want to expire all your assets 
    config.assets.version = '1.0' 

    #Required for Heroku deployment 
    config.assets.initialize_on_precompile = false 

    #get precompilation working on heroku: 
    #config.assets.initialize_on_precompile = true 

    config.serve_static_assets = false 

    #Add fonts for Bootstrap theme 
    config.assets.paths << Rails.root.join("app", "assets", "fonts") 

    #Prevent passwords from being written to logs 
    config.filter_parameters += [:password, :password_confirmation] 
    end 
end 

任何帮助将不胜感激。我已经在这个上度过了两个不眠之夜，我完全被难住了。

谢谢！ -b

编辑1

application.css：

/* 
* This is a manifest file that'll be compiled into application.css, which will include all the files 
* listed below. 
* 
* Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets, 
* or vendor/assets/stylesheets of plugins, if any, can be referenced here using a relative path. 
* 
* You're free to add application-wide styles to this file and they'll appear at the top of the 
* compiled file, but it's generally better to create a new file per style scope. 
* 
*= require_self 
*= require_tree . 
*/ 

.pagination { 
    background: white; 
    cursor: default; 
    margin-top: 20px; 
    a, span, em { 
    padding: 0.2em 0.5em; 
    display: block; 
    float: left; 
    margin-right: 1px; 
    } 

路线：

authenticated :user do 
    root :to => 'activities#index' 
    end 
    root :to => "home#index" 
    devise_for :users, :controllers => { :registrations => "registrations" } 
    resources :users do 
    member do 
     get :following, :followers, :posts, :comments, :activities 
    end 
    end 
    resources :works do 
    resources :comments 
    end 
    resources :relationships, only: [:create, :destroy] 
    resources :posts 
    resources :activities 
    resources :reposts 
    resources :comments do 
    member do 
     put :toggle_is_contribution 
    end 
    end 
    resources :explore 
end 

Answer 1

请这改变config.serve_static_assets = true在production.rb

PL缓解让我知道什么happen.hope它会运行

感谢

Answer 2

如何作出改变application.css（.scss）（如添加新的空行），并承诺是什么？看来Heroku正在检查diff文件并相应地预编译资产。我偶然碰巧知道它，所以你可以尝试，如果它有帮助。

Answer 3

更新与

*group :production, :staging do 
     gem 'rails_12factor' 
    end* 

您的Gemfile安装捆绑软件，并将它推到Heroku的

Installing rails_serve_static_assets (0.0.1) 
    Installing rails_stdout_logging (0.0.1) 
    Installing rails_12factor (0.0.2) 

它帮助我，当我有同样的问题。