ruby-on-rails - Rails:NameError:未初始化常量 Rails::Application::YAML

Question

我试图将我的应用程序部署到 heroku 并遇到此错误。我一直在谷歌上搜索，没有看到任何人遇到 YAML 问题，所以我想在网上问问。任何帮助将不胜感激

 remote: -----> Preparing app for Rails asset pipeline
 remote:        Running: rake assets:precompile
 remote:        rake aborted!
 remote:        NameError: uninitialized constant Rails::Application::YAML
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/application.rb:377:in `secrets'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/config/environments/production.rb:2:in `block in <top (required)>'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/railtie.rb:210:in `instance_eval'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/railtie.rb:210:in `configure'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/config/environments/production.rb:1:in `<top (required)>'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/engine.rb:598:in `block (2 levels) in <class:Engine>'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/engine.rb:597:in `each'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/engine.rb:597:in `block in <class:Engine>'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:30:in `instance_exec'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:30:in `run'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:55:in `block in run_initializers'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:44:in `each'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:44:in `tsort_each_child'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/initializable.rb:54:in `run_initializers'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/application.rb:352:in `initialize!'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/config/environment.rb:5:in `<top (required)>'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/application.rb:328:in `require'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/application.rb:328:in `require_environment!'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/railties-4.2.0/lib/rails/application.rb:443:in `block in run_tasks_blocks'
 remote:        /tmp/build_78ce680a858c094f796e2b21b5bb1826/vendor/bundle/ruby/2.0.0/gems/sprockets-rails-2.3.1/lib/sprockets/rails/task.rb:64:in `block (2 levels) in define'
 remote:        Tasks: TOP => environment
 remote:        (See full trace by running task with --trace)

查看我的 heroku 日志

 2015-06-07T00:58:16.085579+00:00 heroku[slug-compiler]: Slug compilation started
 2015-06-07T00:58:16.085600+00:00 heroku[slug-compiler]: Slug compilation failed: failed to compile Ruby app

Answer 1

我不太确定发生了什么，但我做了一个

require 'yaml'

在我的 production.rb 文件中，它起作用了。我不知道它为什么会起作用，但如果我发现会更新。