Heroku：保存缓存时遇到错误答案

【问题标题】：Heroku: Error encountered while saving cacheHeroku：保存缓存时遇到错误
【发布时间】：2014-04-12 04:31:02
【问题描述】：

在本地一切正常，但在推送到 Heroku 时：

   Warning. Error encountered while saving cache /tmp/build_1b5c442a-d24e-4f80-9755-a0bd15d7f029/tmp/cache/sass/bc1b787c8640c68bf42fc69efbef227d36428060/_carousel.scssc: can't dump anonymous class #<Class:0x007f2583f02288>
   Warning. Error encountered while saving cache /tmp/build_1b5c442a-d24e-4f80-9755-a0bd15d7f029/tmp/cache/sass/bc1b787c8640c68bf42fc69efbef227d36428060/_hero-unit.scssc: can't dump anonymous class #<Class:0x007f2583f02288>
   Warning. Error encountered while saving cache /tmp/build_1b5c442a-d24e-4f80-9755-a0bd15d7f029/tmp/cache/sass/bc1b787c8640c68bf42fc69efbef227d36428060/_utilities.scssc: can't dump anonymous class #<Class:0x007f2583f02288>
   Warning. Error encountered while saving cache /tmp/build_1b5c442a-d24e-4f80-9755-a0bd15d7f029/tmp/cache/sass/5b1569a9810eac207f22942f2921f0820863a2d6/exams.css.scssc: can't dump anonymous class #<Class:0x007f2583f02288>
   Warning. Error encountered while saving cache /tmp/build_1b5c442a-d24e-4f80-9755-a0bd15d7f029/tmp/cache/sass/5b1569a9810eac207f22942f2921f0820863a2d6/home.css.scssc: can't dump anonymous class #<Class:0x007f2583f02288>
   Warning. Error encountered while saving cache /tmp/build_1b5c442a-d24e-4f80-9755-a0bd15d7f029/tmp/cache/sass/5b1569a9810eac207f22942f2921f0820863a2d6/lessons.css.scssc: can't dump anonymous class #<Class:0x007f2583f02288>
   Warning. Error encountered while saving cache /tmp/build_1b5c442a-d24e-4f80-9755-a0bd15d7f029/tmp/cache/sass/5b1569a9810eac207f22942f2921f0820863a2d6/questions.css.scssc: can't dump anonymous class #<Class:0x007f2583f02288>
   Warning. Error encountered while saving cache /tmp/build_1b5c442a-d24e-4f80-9755-a0bd15d7f029/tmp/cache/sass/5b1569a9810eac207f22942f2921f0820863a2d6/scaffolds.css.scssc: can't dump anonymous class #<Class:0x007f2583f02288>
   Warning. Error encountered while saving cache /tmp/build_1b5c442a-d24e-4f80-9755-a0bd15d7f029/tmp/cache/sass/5b1569a9810eac207f22942f2921f0820863a2d6/sections.css.scssc: can't dump anonymous class #<Class:0x007f2583f02288>

最终我得到：

   Warning. Error encountered while saving cache /tmp/build_ccaceaf0-2d8f-4d84-8284-9f5fcb7ced3f/tmp/cache/sass/6b13061e65d1f1cd905accb7f7211a333a70c956/sections.css.scssc: can't dump anonymous class #<Class:0x007f02dbceaa88>
   DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /tmp/build_ccaceaf0-2d8f-4d84-8284-9f5fcb7ced3f/Rakefile:7)
   DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /tmp/build_ccaceaf0-2d8f-4d84-8284-9f5fcb7ced3f/Rakefile:7)

 !     Timed out compiling Ruby app (15 minutes)
 !     See https://devcenter.heroku.com/articles/slug-compiler#time-limit

我只粘贴了这个出现次数的一小部分。

我的宝石文件：

ruby '2.0.0'
gem 'rails', '3.2.11'
group :assets do
  gem 'sass-rails' #,   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'
  gem 'uglifier', '>= 1.0.3'
end
gem 'jquery-rails'
gem 'bootstrap-sass'#, '2.3.2.0'
gem 'cancan'
gem 'devise'
gem 'figaro'
gem 'haml-rails'
gem 'mongoid'
gem 'rolify'
gem 'simple_form'
gem 'thin'
gem 'country_select'
group :development do
  gem 'better_errors'
  gem 'binding_of_caller', :platforms=>[:mri_19, :rbx]
  gem 'guard-bundler'
  gem 'guard-rails'
  gem 'guard-rspec'
  gem 'html2haml'
  gem 'quiet_assets'
  gem 'rb-fchange', :require=>false
  gem 'rb-fsevent', :require=>false
  gem 'rb-inotify', :require=>false
  gem "switch_user"
end
group :development, :test do
  gem 'factory_girl_rails'
  gem 'rspec-rails'
end
group :test do
  gem 'database_cleaner'
  gem 'email_spec'
  gem 'mongoid-rspec'
end
gem "ckeditor"
#gem "binding_of_caller"
gem "mongoid-paperclip", :require => "mongoid_paperclip", :git=>'https://github.com/meskyanichi/mongoid-paperclip'
gem 'aws-sdk', '~> 1.3.4'
gem "flat-ui-rails"
gem 'stripe', :git => 'https://github.com/stripe/stripe-ruby'
gem "mongoid_slug", "~> 2.0.1"

我的 production.rb 文件启用了以下属性

  config.cache_classes = true

  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true

  config.serve_static_assets = true

  config.assets.compress = true
  config.assets.compile = false

  config.assets.digest = true
  config.assets.initialize_on_precompile = false

我的 Rails 版本是 Rails 3.2.11

【问题讨论】：

看到同样的事情，除了我的应用程序最终编译并启动并且似乎工作正常（我猜我的错误并没有导致它超过 15 分钟超时）。这是我自 status.heroku.com/incidents/596 以来的第一次推送。 . .想知道他们是否会做一些事情？你用 Heroku 创建了一张票吗？我的应用没有重大变化，所以我相信我没有破坏任何东西。
这对你有用吗？
如果这对您有用，请标记为已接受的答案。谢谢！
@bcb 我最终做的是在本地预编译资产然后推送。

标签： ruby-on-rails ruby-on-rails-3 heroku

【解决方案1】：

这与最近将 sass gem 升级到 3.3.0 有关。 sass gem 是其他几个 sass gem 的依赖项，因此即使您的 Gemfile 中没有它，它也可能正在加载。在本地和 Heroku 上做一个“捆绑秀”，我很确定你会看到它们是不同的版本（几天前 sass 升级到 3.3.0）。

添加：

gem 'sass', '3.2.13'

到您的 Gemfile，这应该会为您解决问题。然后去 github 上为这个 gem 提交一个 issue。

希望这有帮助，它对我有用！

【讨论】：

为我工作。虽然有点令人沮丧，因为 1. 我们不知道什么时候可以删除行 2. 我不知道是否应该在 group :assets 中添加行 ...
也为我工作......真的很烦人...... font-awesome-sass-rails，sass-rails。 sass-rails 专门不锁定 sass 版本。谢谢你。
在 3.2.19 中仍然会发生这种情况 :( .
对我来说，它们不是不同的版本。但我仍然收到此错误。

【解决方案2】：

这是 Sass 3.3.0 中的一个已知错误，Sprockets 导入器未序列化，因此无法缓存导致此错误。有关错误报告，请参阅this。如果没有缓存，Sass 编译速度会非常慢，这会导致 heroku 服务器超时。

【讨论】：

【解决方案3】：

首先你可能想要更新

bundle update sass-rails
bundle update sass

然后是更关键的部分（确保卸载 Gemfile.lock 中的 sass 版本）

gem uninstall sass
bundle install

【讨论】：