Heroku上的Rails 3.1.3 :(没有路由匹配[GET]“/assets/rails.png”）

我在Heroku上安装了几个基本的应用程序，没有问题，而且这个（Rails 3.1.3）看起来很好因为它显示的Rails欢迎页面Heroku上的Rails 3.1.3 :(没有路由匹配[GET]“/assets/rails.png”）

public/index.html.erb

但是当我删除的页面，然后设置

root :to => 'users#index'

我有一个问题。在heroku日志中表示存在路由错误

ActionController::RoutingError (No route matches [GET] "/assets/rails.png"):

有没有人知道这是关于什么的？

2012-01-14T21:48:29+00:00 heroku[web.1]: Process exited 
2012-01-14T21:48:33+00:00 app[web.1]: >> Thin web server (v1.2.6 codename Crazy Delicious) 
2012-01-14T21:48:33+00:00 app[web.1]: >> Maximum connections set to 1024 
2012-01-14T21:48:33+00:00 app[web.1]: >> Listening on 0.0.0.0:32570, CTRL+C to stop 
2012-01-14T21:48:34+00:00 heroku[web.1]: State changed from starting to up 
2012-01-14T21:48:35+00:00 app[web.1]: cache: [GET /] miss 
2012-01-14T21:48:36+00:00 app[web.1]: 
2012-01-14T21:48:36+00:00 app[web.1]: 
2012-01-14T21:48:36+00:00 app[web.1]: Started GET "/assets/rails.png" for 216.251.147.10 at 2012-01-14 13:48:36 -0800 
2012-01-14T21:48:36+00:00 app[web.1]: 
2012-01-14T21:48:36+00:00 app[web.1]: ActionController::RoutingError (No route matches [GET] "/assets/rails.png"): 
2012-01-14T21:48:36+00:00 app[web.1]: 
2012-01-14T21:48:36+00:00 app[web.1]: 
2012-01-14T21:48:36+00:00 app[web.1]: 
2012-01-14T21:48:36+00:00 app[web.1]: cache: [GET /assets/rails.png] miss 
2012-01-14T21:48:35+00:00 heroku[router]: GET mmcarrier.heroku.com/ dyno=web.1 queue=0 wait=0ms service=19ms status=200 bytes=5907 
2012-01-14T21:48:36+00:00 heroku[router]: GET mmcarrier.heroku.com/assets/rails.png dyno=web.1 queue=0 wait=0ms service=30ms status=404 bytes=728 
2012-01-14T21:48:46+00:00 app[web.1]: cache: [GET /] miss 
2012-01-14T21:48:46+00:00 app[web.1]: 
2012-01-14T21:48:46+00:00 app[web.1]: 
2012-01-14T21:48:46+00:00 app[web.1]: Started GET "/assets/rails.png" for 216.251.147.10 at 2012-01-14 13:48:46 -0800 
2012-01-14T21:48:46+00:00 app[web.1]: 
2012-01-14T21:48:46+00:00 app[web.1]: ActionC 

2012-01-14T21:48:46+00:00 app[web.1]: 
2012-01-14T21:48:46+00:00 app[web.1]: 
2012-01-14T21:48:46+00:00 app[web.1]: 
2012-01-14T21:48:46+00:00 app[web.1]: cache: [GET /assets/rails.png] miss 
2012-01-14T21:48:46+00:00 app[web.1]: cache: [GET /favicon.ico] miss 
2012-01-14T21:48:46+00:00 heroku[router]: GET mmcarrier.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=3ms status=200 bytes=0 
2012-01-14T21:48:46+00:00 heroku[router]: GET mmcarrier.heroku.com/ dyno=web.1 queue=0 wait=0ms service=6ms status=200 bytes=5907 
2012-01-14T21:48:46+00:00 heroku[router]: GET mmcarrier.heroku.com/assets/rails.png dyno=web.1 queue=0 wait=0ms service=4ms status=404 bytes=728 
2012-01-14T21:48:59+00:00 app[web.1]: cache: [GET /] miss 
2012-01-14T21:48:59+00:00 heroku[router]: GET mmcarrier.heroku.com/ dyno=web.1 queue=0 wait=0ms service=5ms status=200 bytes=5907 
2012-01-14T21:48:59+00:00 app[web.1]: 
2012-01-14T21:48:59+00:00 app[web.1]: 
2012-01-14T21:48:59+00:00 app[web.1]: Started GET "/assets/rails.png" for 216.251.147.10 at 2012-01-14 13:48:59 -0800 
2012-01-14T21:48:59+00:00 app[web.1]: 
2012-01-14T21:48:59+00:00 app[web.1]: ActionController::RoutingError (No route matches [GET] "/assets/rails.png"): 
2012-01-14T21:48:59+00:00 app[web.1]: 
2012-01-14T21:48:59+00:00 app[web.1]: 
2012-01-14T21:48:59+00:00 app[web.1]: 
2012-01-14T21:48:59+00:00 app[web.1]: cache: [GET /assets/rails.png] miss 
2012-01-14T21:48:59+00:00 heroku[router]: GET mmcarrier.heroku.com/assets/rails.png dyno=web.1 queue=0 wait=0ms service=3ms status=404 bytes=728 
2012-01-14T21:49:18+00:00 app[web.1]: 
2012-01-14T21:49:18+00:00 app[web.1]: 
2012-01-14T21:49:18+00:00 app[web.1]: Started GET "/assets/rails.png" for 216.251.147.10 at 2012-01-14 13:49:18 -0800 
2012-01-14T21:49:18+00:00 app[web.1]: 
2012-01-14T21:49:18+00:00 app[web.1]: ActionController::RoutingError (No route matches [GET] "/assets/rails.png"): 
2012-01-14T21:49:18+00:00 app[web.1]: 
2012-01-14T21:49:18+00:00 app[web.1]: 
2012-01-14T21:49:18+00:00 app[web.1]: 
2012-01-14T21:49:18+00:00 app[web.1]: cache: [GET /assets/rails.png] miss 
2012-01-14T21:49:18+00:00 heroku[router]: GET mmcarrier.heroku.com/assets/rails.png dyno=web.1 queue=0 wait=0ms service=4ms status=404 bytes=728 
2012-01-14T21:49:33+00:00 app[web.1]: cache: [GET /] miss 
2012-01-14T21:49:33+00:00 app[web.1]: 
2012-01-14T21:49:33+00:00 app[web.1]: 
2012-01-14T21:49:33+00:00 app[web.1]: Started GET "/assets/rails.png" for 216.251.147.10 at 2012-01-14 13:49:33 -0800 
2012-01-14T21:49:33+00:00 app[web.1]: 
2012-01-14T21:49:33+00:00 app[web.1]: ActionController::RoutingError (No route matches [GET] "/assets/rails.png"): 
2012-01-14T21:49:33+00:00 app[web.1]: 
2012-01-14T21:49:33+00:00 app[web.1]: 
2012-01-14T21:49:33+00:00 app[web.1]: cache: [GET /assets/rails.png] miss 
2012-01-14T21:49:33+00:00 app[web.1]: 
2012-01-14T21:49:34+00:00 app[web.1]: cache: [GET /favicon.ico] miss 
2012-01-14T21:49:33+00:00 heroku[router]: GET mmcarrier.heroku.com/ dyno=web.1 queue=0 wait=0ms service=6ms status=200 bytes=5907 
2012-01-14T21:49:33+00:00 heroku[router]: GET mmcarrier.heroku.com/assets/rails.png dyno=web.1 queue=0 wait=0ms service=4ms status=404 bytes=728 
2012-01-14T21:49:34+00:00 heroku[router]: GET mmcarrier.heroku.com/favicon.ico dyno=web.1 queue=0 wait=0ms service=3ms status=200 bytes=0 
2012-01-14T21:50:21+00:00 app[web.1]: cache: [GET /] miss 
2012-01-14T21:50:21+00:00 heroku[router]: GET mmcarrier.heroku.com/ dyno=web.1 queue=0 wait=0ms service=4ms status=200 bytes=5907 
2012-01-14T21:50:21+00:00 app[web.1]: 
2012-01-14T21:50:21+00:00 heroku[router]: GET mmcarrier.heroku.com/assets/rails.png dyno=web.1 queue=0 wait=0ms service=4ms status=404 bytes=728 
2012-01-14T21:50:21+00:00 app[web.1]: Started GET "/assets/rails.png" for 216.251.147.10 at 2012-01-14 13:50:21 -0800 
2012-01-14T21:50:21+00:00 app[web.1]: 
2012-01-14T21:50:21+00:00 app[web.1]: 
2012-01-14T21:50:21+00:00 app[web.1]: cache: [GET /assets/rails.png] miss 
2012-01-14T21:50:21+00:00 app[web.1]: ActionController::RoutingError (No route matches [GET] "/assets/rails.png"): 
2012-01-14T21:50:21+00:00 app[web.1]: 
2012-01-14T21:50:21+00:00 app[web.1]: 
2012-01-14T21:50:21+00:00 app[web.1]: 
2012-01-14T21:52:42+00:00 heroku[slugc]: Slug compilation started 
2012-01-14T21:52:54+00:00 heroku[api]: Deploy 983a24d by [email protected] 
2012-01-14T21:52:54+00:00 heroku[api]: Release v8 created by [email protected] 
2012-01-14T21:52:54+00:00 heroku[web.1]: State changed from up to bouncing 
2012-01-14T21:52:54+00:00 heroku[web.1]: State changed from bouncing to created 
2012-01-14T21:52:54+00:00 heroku[web.1]: State changed from created to starting 
2012-01-14T21:52:55+00:00 heroku[slugc]: Slug compilation finished 
2012-01-14T21:53:01+00:00 heroku[web.1]: State changed from starting to up 
2012-01-14T21:53:05+00:00 heroku[router]: GET mmcarrier.heroku.com/assets/rails.png dyno=web.1 queue=0 wait=0ms service=37ms status=404 bytes=728 
2012-01-14T21:53:17+00:00 heroku[router]: GET mmcarrier.heroku.com/assets/rails.png dyno=web.1 queue=0 wait=0ms service=5ms status=404 bytes=728 
2012-01-14T21:53:36+00:00 heroku[router]: GET mmcarrier.heroku.com/assets/rails.png dyno=web.1 queue=0 wait=0ms service=2ms status=404 bytes=728 
2012-01-14T21:53:38+00:00 heroku[router]: GET mmcarrier.heroku.com/ dyno=web.1 queue=0 wait=0ms service=107ms status=500 bytes=728 
2012-01-14T21:53:40+00:00 heroku[router]: GET mmcarrier.heroku.com/ dyno=web.1 queue=0 wait=0ms service=20ms status=500 bytes=728 
2012-01-14T21:53:49+00:00 heroku[run.1]: State changed from created to starting 
2012-01-14T21:53:52+00:00 heroku[run.1]: State changed from starting to up 
2012-01-14T21:53:57+00:00 heroku[run.1]: State changed from up to complete 
2012-01-14T21:53:57+00:00 heroku[run.1]: Process exited 
2012-01-14T21:55:15+00:00 heroku[router]: GET mmcarrier.heroku.com/assets/rails.png dyno=web.1 queue=0 wait=0ms service=35ms status=404 bytes=728 
2012-01-14T21:55:17+00:00 heroku[router]: GET mmcarrier.heroku.com/assets/rails.png dyno=web.1 queue=0 wait=0ms service=3ms status=404 bytes=728 
2012-01-14T21:55:22+00:00 heroku[router]: GET mmcarrier.heroku.com/ dyno=web.1 queue=0 wait=0ms service=12ms status=500 bytes=728 
2012-01-14T21:56:18+00:00 heroku[router]: GET mmcarrier.heroku.com/ dyno=web.1 queue=0 wait=0ms service=12ms status=500 bytes=728

来源

2012-01-14 Leahcim

它看起来像你可能没有预编译你的资产，你被推到Heroku的前，尝试：

rake assets:precompile 
git add . 
etc etc

我觉得应该帮助。欲了解更多信息，请参见这里：http://devcenter.heroku.com/articles/rails31_heroku_cedar

来源

2012-01-14 22:13:05

你是对的，我没有，我会做，但为什么Rails欢迎页面工作？ – Leahcim 2012-01-14 22:14:41

它的工作原理是，欢迎页面没有必要的资源。所有样式都包含在public/index.html文件中，并且不需要任何JavaScript或图像。很高兴我能帮上忙！ – 2012-01-14 22:18:21

简单，它不是资产，它是视图。 – Hauleth 2012-01-14 22:22:10

无需预编译和杂波你混帐！

的Heroku将预编译的资产

与轨道3.1.X你加入这application.rb中

config.assets.initialize_on_precompile = false

UPDATE 16 july2012

也轨3.2.x中

i t似乎是ActiveRecord和database.yml的问题！如果您不使用常规数据库，但使用MongoDB，则不需要上述内容。但是，如果这样做，则需要禁用initilize，因为activerecord在初始化时读取数据库表，但数据库在heroku的预编译阶段不可用。

与MongoDB没有必要。

/UPDATE

轨3.2.x中 ：看一看application.rb中的顶部。 OMA的意见是我的，增加了透明度

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

来源

2012-05-14 12:18:00 oma

我正在运行的Rails 3.2.6的一切更新，我不得不预编译，否则rails.png不显示。我正在关注Rails教程在线书籍。 – tentimes 2012-06-17 14:18:09

当然......希望在我尝试过杰西的回答之前，我已经读过了。简单的预编译并没有帮助。而且...现在我的git回购臃肿。 – 2013-04-15 12:39:21

偷懒开始用薄（在Heroku）正与导轨3.2.3我不得不这样做：

在配置/ application.rb中：

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 Romulo 
    class Application < Rails::Application 

... 

    # 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' 

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

    config.serve_static_assets = false 
    end 
end

在配置/环境/ production.rb：

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

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

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

无需预编译的资产。

来源

2012-06-15 15:23:20

Heroku上的Rails 3.1.3 :(没有路由匹配[GET]“/assets/rails.png”）

回答

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