I'm starting in rails and I've got an application that is working in dev (webrick).
我开始使用rails并且我有一个在dev（webrick）中运行的应用程序。
The problem is: the precompiled CSS file is not found in production.
问题是：在生产中找不到预编译的CSS文件。
Now I host it on heroku and deploy it. I have a message saying that assets are precompiled (so it's not a compilation error) and everything is by-default for settings.
现在我将它托管在heroku上并进行部署。我有一条消息说资产是预先编译的（因此它不是编译错误）并且默认设置都是一切。
I've ls the /public/assets folder and everything is in there. I can even cat the application-*.css file and I get the full content I should have.
我有/ public / assets文件夹，一切都在那里。我甚至可以抓住应用程序 - * .css文件，我得到了我应该拥有的全部内容。
Now when I try to access the CSS file it gives me an error 404 (even tho it's an auto-generated css link using <%= stylesheet_link_tag "application", :media => "all" %>). So definetly it's not a problem that I did hardcode the CSS link.
现在，当我尝试访问CSS文件时，它给出了一个错误404（即使它是使用<％= stylesheet_link_tag“application”的自动生成的css链接，：media =>“all”％>）。因此，我确实对CSS链接进行了硬编码并不是问题。
I'm not exactly sure on what would be the next check to perform.
我不确定下一次检查的执行情况。
If you're curious on the output, it is currently publicly accessible here.
如果您对输出很好奇，那么它目前可以在这里公开访问。
2 个解决方案
#1
14
Try changing the configuration option config.serve_static_assets = false to config.serve_static_assets = true in your config/environments/production.rb if you haven't already done that.
如果您还没有这样做，请尝试在config / environments / production.rb中将配置选项config.serve_static_assets = false更改为config.serve_static_assets = true。
#2
1
The only thing that fixed it for me in Rails 4 was
在Rails 4中唯一能解决它的问题是
config.assets.compile = true
in config/environments/production.rb
在config / environments / production.rb中
This would fall back to the assets pipeline if a precompiled asset is missed, according to the documentation.
根据文档，如果遗漏了预编译资产，这将回退到资产管道。
#1
14
Try changing the configuration option config.serve_static_assets = false to config.serve_static_assets = true in your config/environments/production.rb if you haven't already done that.
如果您还没有这样做，请尝试在config / environments / production.rb中将配置选项config.serve_static_assets = false更改为config.serve_static_assets = true。
#2
1
The only thing that fixed it for me in Rails 4 was
在Rails 4中唯一能解决它的问题是
config.assets.compile = true
in config/environments/production.rb
在config / environments / production.rb中
This would fall back to the assets pipeline if a precompiled asset is missed, according to the documentation.
根据文档，如果遗漏了预编译资产，这将回退到资产管道。