Ruby on Rails Rake 资产：预编译错误
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Ruby on Rails Rake assets:precompile error
提问by fabiogasparro
I'm new in Rails development and this is my first deployment to Heroku. When I execute my application (after the deployment) there is an error:
我是 Rails 开发的新手，这是我第一次部署到 Heroku。当我执行我的应用程序时（部署后）有一个错误：
2011-09-18T21:05:54+00:00 app[web.1]: Completed 500 Internal Server Error in 10ms
2011-09-18T21:05:54+00:00 app[web.1]:
2011-09-18T21:05:54+00:00 app[web.1]: ActionView::Template::Error (application.css isn't precompiled):
I googled this and found that I have to precompile my assets, but when trying to do this I found an other error:
我用谷歌搜索，发现我必须预编译我的资产，但是在尝试这样做时，我发现了另一个错误：
$ bundle exec rake assets:precompile RAILS_ENV=production
rake aborted!
No such process - /usr/lib/ruby/gems/1.8/gems/pg-0.11.0/lib/pg_ext.so
(See full trace by running task with --trace)
I haven't found any solution for this issue. Is there anyone who faced this an know how to solve this problem?
我还没有找到针对此问题的任何解决方案。有没有遇到过这个问题的人知道如何解决这个问题？
回答by Kevin B
I ran into this issue as well and I resolved it by doing the following:
我也遇到了这个问题，我通过执行以下操作解决了它：
Open up config/environments/production.rband make sure the following option is set to true:
打开config/environments/production.rb并确保以下选项设置为true：
# Don't fallback to assets pipeline if a precompiled asset is missed
config.assets.compile = true
Then run:
然后运行：
rake assets:precompile --trace RAILS_ENV=production
Hope this helps!
希望这可以帮助！
~Kevin
~凯文
回答by user808749
I got the problem too. But you can
我也遇到了这个问题。但是你可以
rake assets:precompile RAILS_ENV=production
in local, and push to heroku with public/assets. It's resolved.
在本地，并使用公共/资产推送到 heroku。解决了。
回答by Simon Perepelitsa
I would recommend to use the new Cedar stack. It precompiles assets for you on deploy and overall plays nicer with Rails 3.1, although you will need to configure your app a little bit to work: add some gems to your Gemfile and create a Procfile. But it is still an easier way to go.
我建议使用新的Cedar stack。它在部署时为您预编译资产，并且总体上与 Rails 3.1 一起玩得更好，尽管您需要稍微配置您的应用程序才能工作：向您的 Gemfile 添加一些 gem 并创建一个 Procfile。但这仍然是一种更简单的方法。
回答by David Silva Smith
I had the same error message. My issue was an incorrectly specified font url.
我有同样的错误信息。我的问题是错误指定的字体 url。
The bulk of this answer shows how I figured it out.
这个答案的大部分内容显示了我是如何想出来的。
Although I didn't get the path of the asset it was failing on when running
虽然我没有得到它在运行时失败的资产的路径
RAILS_ENV=production SECRET_KEY_BASE=xxx rake assets:precompile --trace
Instead I had this stack trace:
相反，我有这个堆栈跟踪：
** Invoke assets:precompile (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke environment (first_time)
** Execute environment
** Execute assets:precompile
rake aborted!
NoMethodError: undefined method `[]' for nil:NilClass
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:283:in `sprockets_context'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:124:in `asset_path'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:142:in `asset_url'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:214:in `font_url'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/funcall.rb:143:in `_perform'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/node.rb:58:in `perform'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/list_literal.rb:63:in `block in _perform'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/list_literal.rb:63:in `map'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/list_literal.rb:63:in `_perform'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/script/tree/node.rb:58:in `perform'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:397:in `visit_prop'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `block in visit'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:79:in `block in with_base'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:115:in `with_frame'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:79:in `with_base'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `visit'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `block (2 levels) in visit_rule'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `map'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:433:in `block in visit_rule'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:181:in `with_environment'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:431:in `visit_rule'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `block in visit'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:79:in `block in with_base'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:115:in `with_frame'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/stack.rb:79:in `with_base'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:160:in `visit'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `map'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:52:in `visit_children'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:169:in `block in visit_children'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:181:in `with_environment'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:168:in `visit_children'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `block in visit'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:188:in `visit_root'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/base.rb:36:in `visit'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:159:in `visit'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/visitors/perform.rb:8:in `visit'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/root_node.rb:36:in `css_tree'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/tree/root_node.rb:20:in `render'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sass-3.4.22/lib/sass/engine.rb:281:in `render'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_compressor.rb:48:in `call'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_compressor.rb:28:in `call'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/processor_utils.rb:75:in `call_processor'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/processor_utils.rb:57:in `block in call_processors'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/processor_utils.rb:56:in `reverse_each'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/processor_utils.rb:56:in `call_processors'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/loader.rb:134:in `load_from_unloaded'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/loader.rb:60:in `block in load'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/loader.rb:317:in `fetch_asset_from_dependency_cache'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/loader.rb:44:in `load'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/cached_environment.rb:20:in `block in initialize'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/cached_environment.rb:47:in `load'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/base.rb:66:in `find_asset'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/base.rb:73:in `find_all_linked_assets'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/manifest.rb:142:in `block in find'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/legacy.rb:114:in `block (2 levels) in logical_paths'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/path_utils.rb:228:in `block in stat_tree'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/path_utils.rb:212:in `block in stat_directory'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/path_utils.rb:209:in `each'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/path_utils.rb:209:in `stat_directory'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/path_utils.rb:227:in `stat_tree'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/legacy.rb:105:in `each'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/legacy.rb:105:in `block in logical_paths'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/legacy.rb:104:in `each'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/legacy.rb:104:in `logical_paths'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/manifest.rb:140:in `find'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/manifest.rb:185:in `compile'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-rails-3.1.1/lib/sprockets/rails/task.rb:68:in `block (3 levels) in define'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/rake/sprocketstask.rb:147:in `with_logger'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-rails-3.1.1/lib/sprockets/rails/task.rb:67:in `block (2 levels) in define'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:248:in `block in execute'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:243:in `each'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:243:in `execute'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:187:in `block in invoke_with_call_chain'
/Users/smithd98/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:180:in `invoke_with_call_chain'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/task.rb:173:in `invoke'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:152:in `invoke_task'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:108:in `block (2 levels) in top_level'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:108:in `each'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:108:in `block in top_level'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:117:in `run_with_threads'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:102:in `top_level'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:80:in `block in run'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:178:in `standard_exception_handling'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/lib/rake/application.rb:77:in `run'
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/rake-11.2.2/exe/rake:27:in `<top (required)>'
/Users/smithd98/.rvm/gems/ruby-2.3.1/bin/rake:23:in `load'
/Users/smithd98/.rvm/gems/ruby-2.3.1/bin/rake:23:in `<main>'
/Users/smithd98/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in `eval'
/Users/smithd98/.rvm/gems/ruby-2.3.1/bin/ruby_executable_hooks:15:in `<main>'
I modified the gem to spit out the filename
我修改了 gem 以吐出文件名
subl /Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:124:in
like this
像这样
def asset_path(path, options = {})
path = path.value
puts path
puts '123'
path, _, query, fragment = URI.split(path)[5..8]
puts '126'
path = sprockets_context.asset_path(path, options)
puts '128'
query = "?#{query}" if query
puts '130'
fragment = "##{fragment}" if fragment
puts '132'
Autoload::Sass::Script::String.new("#{path}#{query}#{fragment}", :string)
end
Then when I ran
然后当我跑
RAILS_ENV=production SECRET_KEY_BASE=xxx rake assets:precompile --trace
I got
我有
** Invoke assets:precompile (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke environment (first_time)
** Execute environment
** Execute assets:precompile
fonts/OpenSans-Light.ttf
123
126
rake aborted!
NoMethodError: undefined method `[]' for nil:NilClass
/Users/smithd98/.rvm/gems/ruby-2.3.1/gems/sprockets-3.7.0/lib/sprockets/sass_processor.rb:283:in `sprockets_context'
...the rest of the stack trace is the same...
Then I found out the issue was a font had been specified like this:
然后我发现问题是这样指定的字体：
.btn-rect {
font-family: 'OpenSans-Light';
src:font-url('fonts/OpenSans-Light.ttf') format('truetype');
}
and should have been like this:
应该是这样的：
.btn-rect {
font-family: 'OpenSans-Light';
}
回答by Simpleton
Oh, this is an easy one. Your PGgem is breaking your rake task. You can either go the long route to try to fix it, or you can try commenting it out from your gemfile in order to run the precompile.
哦，这很容易。您的PG宝石正在破坏您的佣金任务。您可以走很长的路来尝试修复它，也可以尝试从您的 gemfile 中注释掉它以运行预编译。
回答by makisv
Yes like Simpleton posted above the PG gem is causing the problem. Imo a better solution would be to move the PG gem inside production in your gemfile and run; bundle install --without production Then you should be able to run the rake task without problems
是的，就像在 PG gem 上面张贴的 Simpleton 是导致问题的原因。Imo 更好的解决方案是将 PG gem 移动到您的 gemfile 中的生产中并运行；bundle install --without production 然后你应该可以毫无问题地运行 rake 任务
回答by George C
Instead of config.assets.compile = trueuse config.serve_static_assets = true
而不是config.assets.compile = true使用config.serve_static_assets = true
The first option is incorrect, because it tells your server to go back to serving the app/assets folder.
第一个选项不正确，因为它告诉您的服务器返回为 app/assets 文件夹提供服务。
