rake assets：预编译失败答案

【问题标题】：rake assets:precompile failsrake assets：预编译失败
【发布时间】：2013-03-20 22:58:34
【问题描述】：

我有一个在开发中运行良好的 Rails 应用程序。我在 RubyMine 中开发它，但我使用 Webrick 和 sqlite3 从终端测试和运行它（文件存储/运行在我使用终端从 OSX 访问的 Ubuntu 工作站上）。该应用程序使用修改后的 Boostrap 模板，并且运行良好。现在我想尝试在生产模式下运行它。

这就是我所做的： Rails 版本是 3.2.11，我使用 rvm 1.8.1 和 ruby-1.9.2-p290

config.logger = Logger.new(STDOUT) in environment/production.rb
config.serve_static_assets = true in environment/production.rb
export RAILS_ENV=production
rake db:migrate (works fine)
rake assets:precompile --trace

我收到以下错误：

peter@fshsweden:/var/www/prod/mackmyra2.dnsalias.com$ rake assets:precompile --trace
** Invoke assets:precompile (first_time)
** Execute assets:precompile
/home/peter/.rvm/rubies/ruby-1.9.2-p290/bin/ruby /home/peter/.rvm/gems/ruby-1.9.2-p290/bin/rake     assets:precompile:all RAILS_ENV=production RAILS_GROUPS=assets --trace
** Invoke assets:precompile:all (first_time)
** Execute assets:precompile:all
** Invoke assets:precompile:primary (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke environment (first_time)
** Execute environment
** Invoke tmp:cache:clear (first_time)
** Execute tmp:cache:clear
** Execute assets:precompile:primary
Compiled jquery.js  (2ms)  (pid 4521)
Compiled jquery_ujs.js  (0ms)  (pid 4521)
Compiled bootstrap.js  (0ms)  (pid 4521)
Compiled articles.js  (68ms)  (pid 4521)
Compiled lightbox.js  (0ms)  (pid 4521)
Compiled main.js  (0ms)  (pid 4521)
Compiled prettify.js  (0ms)  (pid 4521)
Compiled public.js  (1ms)  (pid 4521)
Compiled small_articles.js  (0ms)  (pid 4521)
Compiled application.js  (142ms)  (pid 4521)
Compiled application.css  (4744ms)  (pid 4521)
rake aborted!
/var/www/prod/mackmyra2.dnsalias.com/app/views/articles/_form.html.erb:6: syntax error, unexpected     ')'
... 'form-horizontal'} ) do |ff| ).to_s); _erbout.concat "\n"
...                               ^
/var/www/prod/mackmyra2.dnsalias.com/app/views/articles/_form.html.erb:45: syntax error, unexpected     keyword_ensure, expecting ')'
/var/www/prod/mackmyra2.dnsalias.com/app/views/articles/_form.html.erb:47: syntax error, unexpected     keyword_end, expecting ')'
  (in /var/www/prod/mackmyra2.dnsalias.com/app/views/articles/_form.html.erb)
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/tilt-1.3.3/lib/tilt/template.rb:209:in `instance_eval'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/tilt-1.3.3/lib/tilt/template.rb:209:in `evaluate_source'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/tilt-1.3.3/lib/tilt/template.rb:144:in `cached_evaluate'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/tilt-1.3.3/lib/tilt/template.rb:127:in `evaluate'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/tilt-1.3.3/lib/tilt/template.rb:76:in `render'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/context.rb:193:in `block in evaluate'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/context.rb:190:in `each'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/context.rb:190:in `evaluate'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/processed_asset.rb:12:in `initialize'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:249:in `new'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:249:in `block in build_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:270:in `circular_call_protection'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:248:in `build_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/index.rb:93:in `block in build_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/caching.rb:19:in     `cache_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/index.rb:92:in `build_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:169:in `find_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/index.rb:60:in `find_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/bundled_asset.rb:16:in `initialize'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:252:in `new'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:252:in     `build_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/index.rb:93:in `block in     build_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/caching.rb:19:in `cache_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/index.rb:92:in `build_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:169:in `find_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/index.rb:60:in `find_asset'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/actionpack-3.2.11/lib/sprockets/static_compiler.rb:19:in `block in compile'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:219:in `block in each_logical_path'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:206:in `block (2 levels) in each_file'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:196:in `each'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:196:in `each_entry'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:204:in `block in each_file'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:203:in `each'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:203:in `each_file'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/sprockets-2.2.2/lib/sprockets/base.rb:217:in `each_logical_path'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/actionpack-3.2.11/lib/sprockets/static_compiler.rb:18:in `compile'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/actionpack-3.2.11/lib/sprockets/assets.rake:56:in `internal_precompile'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/actionpack-3.2.11/lib/sprockets/assets.rake:70:in `block (3 levels) in <top (required)>'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:228:in `call'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:228:in `block in execute'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:223:in `each'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:223:in `execute'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:166:in `block in invoke_with_call_chain'
/home/peter/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:159:in `invoke_with_call_chain'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:152:in `invoke'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/actionpack-3.2.11/lib/sprockets/assets.rake:60:in `block (3 levels) in <top (required)>'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:228:in `call'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:228:in `block in execute'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:223:in `each'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:223:in `execute'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:166:in `block in invoke_with_call_chain'
/home/peter/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:159:in     `invoke_with_call_chain'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:152:in `invoke'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:143:in `invoke_task'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:101:in `block (2 levels) in top_level'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:101:in `each'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:101:in `block in top_level'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:110:in `run_with_threads'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:95:in `top_level'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:73:in `block in run'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:160:in `standard_exception_handling'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:70:in `run'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/bin/rake:33:in `<top (required)>'
/home/peter/.rvm/gems/ruby-1.9.2-p290/bin/rake:23:in `load'
/home/peter/.rvm/gems/ruby-1.9.2-p290/bin/rake:23:in `<main>'
Tasks: TOP => assets:precompile:primary
rake aborted!
Command failed with status (1): [/home/peter/.rvm/rubies/ruby-1.9.2-p290/bi...]
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/file_utils.rb:53:in `block in     create_shell_runner'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/file_utils.rb:45:in `call'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/file_utils.rb:45:in `sh'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/file_utils_ext.rb:40:in `sh'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/file_utils.rb:80:in `ruby'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/file_utils_ext.rb:40:in `ruby'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/actionpack-3.2.11/lib/sprockets/assets.rake:12:in     `ruby_rake_task'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/actionpack-3.2.11/lib/sprockets/assets.rake:21:in `invoke_or_reboot_rake_task'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/actionpack-3.2.11/lib/sprockets/assets.rake:29:in `block (2 levels) in <top (required)>'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:228:in `call'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:228:in `block in execute'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:223:in `each'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:223:in `execute'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:166:in `block in     invoke_with_call_chain'
/home/peter/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:159:in     `invoke_with_call_chain'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/task.rb:152:in `invoke'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:143:in `invoke_task'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:101:in `block (2 levels) in top_level'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:101:in `each'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:101:in `block in top_level'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:110:in `run_with_threads'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:95:in `top_level'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:73:in `block in run'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:160:in `standard_exception_handling'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/lib/rake/application.rb:70:in `run'
/home/peter/.rvm/gems/ruby-1.9.2-p290/gems/rake-10.0.3/bin/rake:33:in `<top (required)>'
/home/peter/.rvm/gems/ruby-1.9.2-p290/bin/rake:23:in `load'
/home/peter/.rvm/gems/ruby-1.9.2-p290/bin/rake:23:in `<main>'
Tasks: TOP => assets:precompile

现在，如果我在一个干净的 Rails 应用程序上执行上述操作，它就可以工作。但它在我认为有效的应用程序上失败了。你能指出什么是错的吗？

_form.rb 是一个带有 simple_form 调用的部分，没有什么特别的。

（此处仅显示两行以显示错误似乎发生的位置）

<%= yield :title %>
<%= simple_form_for(@article, :html => {:multipart => true, :class => 'form-horizontal'} ) do |ff| %>

感谢任何帮助！

【问题讨论】：

大胆猜测，尝试重新部署您的文件，也许您正在尝试编译的 yuor _form.erb 文件的旧版本
文件位于 Ubuntu 工作站上，我可以就地编辑它们，因为我可以在开发模式下运行相同的代码（使用 RAILS_ENV=development）我不认为它是损坏的文件或任何东西。
您真的要预编译应用程序视图文件吗？这对我来说没有多大意义
我也不是，但我所做的只是 rake assets:precompile while in the application root dir....不知道为什么它甚至要查看视图文件。

标签： ruby-on-rails rake asset-pipeline production

【解决方案1】：

好吧，事实证明这对我来说是个傻瓜。几周前解决其他一些资产问题时，我一直在摆弄（在 config/application.rb 中）

config.assets.paths << "#{Rails.root}/app/assets"

并且不小心添加了（我猜是在一些绝望的举动中）

config.assets.paths << "#{Rails.root}/app"

这当然包括应用程序下的所有内容作为资产，这是非常错误的。

这个错误确实出现了，直到我不得不做一个 rake assets:precompile。由于我真的不知道该命令做了什么，我没有看到它试图将视图 ERB 文件编译为资产。

找到这篇文章后：http://blog.55minutes.com/2012/02/untangling-the-rails-asset-pipeline-part-2-production/我意识到它错误地包含了视图文件，它必须是路径问题。

小错误但很难修复。有点像 Rails 标准。

【讨论】：