[英]Heroku launch application error Ruby on Rails
尝试在Heroku上启动应用程序，但始终出现应用程序错误。 这是heroku日志，请让我知道如何使该应用程序运行。 我们已经实现了pusher，并且可以使网站在本地主机上运行（甚至跨不同localhost机器的pusher功能），但除此之外，它不能在heroku上运行。
2012-11-04T19:57:31+00:00 app[web.1]: Connecting to database specified by DATABASE_URL
2012-11-04T19:57:31+00:00 app[web.1]: /app/app/controllers/comments_controller.rb:2:in `<class:CommentsController>': undefined method `post' for CommentsController:Class (NoMethodError)
2012-11-04T19:57:31+00:00 app[web.1]: from /app/app/controllers/comments_controller.rb:1:in `<top (required)>'
2012-11-04T19:57:31+00:00 app[web.1]: Exiting
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:236:in `load_dependency'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `block in require'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:359:in `require_or_load'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:313:in `depend_on'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:225:in `require_dependency'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:439:in `block (2 levels) in eager_load!'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:438:in `each'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:438:in `block in eager_load!'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:436:in `each'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:436:in `eager_load!'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application/finisher.rb:53:in `block in <module:Finisher>'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:30:in `instance_exec'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:30:in `run'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:55:in `block in run_initializers'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:54:in `run_initializers'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/config.ru:1:in `<main>'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:40:in `eval'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:40:in `parse_file'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:200:in `app'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:301:in `wrapped_app'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/commands/server.rb:46:in `app'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:54:in `each'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application.rb:136:in `initialize!'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:252:in `start'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/commands/server.rb:70:in `start'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/railtie/configurable.rb:30:in `method_missing'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/config/environment.rb:5:in `<top (required)>'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/config.ru:4:in `require'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/config.ru:4:in `block in <main>'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/config.ru:1:in `new'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/commands.rb:55:in `block in <top (required)>'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/commands.rb:50:in `tap'
2012-11-04T19:57:31+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/commands.rb:50:in `<top (required)>'
2012-11-04T19:57:31+00:00 app[web.1]: from script/rails:6:in `require'
2012-11-04T19:57:31+00:00 app[web.1]: from script/rails:6:in `<main>'
2012-11-04T19:57:32+00:00 app[web.1]: => Booting WEBrick
2012-11-04T19:57:32+00:00 app[web.1]: => Rails 3.2.8 application starting in production on http://0.0.0.0:46992
2012-11-04T19:57:32+00:00 app[web.1]: => Call with -d to detach
2012-11-04T19:57:32+00:00 app[web.1]: => Ctrl-C to shutdown server
2012-11-04T19:57:32+00:00 app[web.1]: Connecting to database specified by DATABASE_URL
2012-11-04T19:57:32+00:00 app[web.1]: Exiting
2012-11-04T19:57:32+00:00 app[web.1]: /app/app/controllers/comments_controller.rb:2:in `<class:CommentsController>': undefined method `post' for CommentsController:Class (NoMethodError)
2012-11-04T19:57:32+00:00 app[web.1]: from /app/app/controllers/comments_controller.rb:1:in `<top (required)>'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `block in require'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:236:in `load_dependency'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:359:in `require_or_load'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:313:in `depend_on'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:225:in `require_dependency'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:439:in `block (2 levels) in eager_load!'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:438:in `each'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:438:in `block in eager_load!'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:436:in `each'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/engine.rb:436:in `eager_load!'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application/finisher.rb:53:in `block in <module:Finisher>'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:30:in `instance_exec'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:30:in `run'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:55:in `block in run_initializers'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:54:in `each'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:54:in `run_initializers'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application.rb:136:in `initialize!'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/railtie/configurable.rb:30:in `method_missing'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/config/environment.rb:5:in `<top (required)>'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/config.ru:4:in `require'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/config.ru:4:in `block in <main>'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/config.ru:1:in `new'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/config.ru:1:in `<main>'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:200:in `app'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/commands/server.rb:46:in `app'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:301:in `wrapped_app'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:252:in `start'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/commands/server.rb:70:in `start'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/commands.rb:55:in `block in <top (required)>'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/commands.rb:50:in `tap'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.8/lib/rails/commands.rb:50:in `<top (required)>'
2012-11-04T19:57:32+00:00 app[web.1]: from script/rails:6:in `require'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:40:in `eval'
2012-11-04T19:57:32+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:40:in `parse_file'
2012-11-04T19:57:32+00:00 app[web.1]: from script/rails:6:in `<main>'
2012-11-04T19:57:33+00:00 heroku[web.1]: Process exited with status 1
2012-11-04T19:57:33+00:00 heroku[web.1]: State changed from starting to crashed
2012-11-04T19:57:33+00:00 heroku[web.1]: Process exited with status 1
2012-11-04T20:07:27+00:00 heroku[web.1]: State changed from crashed to down
2012-11-04T20:07:27+00:00 heroku[web.1]: State changed from down to starting
2012-11-04T20:07:39+00:00 heroku[web.1]: State changed from starting to crashed
2012-11-04T20:17:44+00:00 heroku[web.1]: State changed from crashed to down
2012-11-04T20:17:44+00:00 heroku[web.1]: State changed from down to starting
2012-11-04T20:17:56+00:00 heroku[web.1]: State changed from starting to crashed
2012-11-04T20:22:51+00:00 heroku[router]: Error H10 (App crashed) -> GET followalong.herokuapp.com/ dyno= queue= wait= service= status=503 bytes=
2012-11-04T20:22:52+00:00 heroku[router]: Error H10 (App crashed) -> GET followalong.herokuapp.com/favicon.ico dyno= queue= wait= service= status=503 bytes=
如前所述，在本地主机上正常工作时，不会出现此错误。 尝试删除或注释CommentController调用并检查是否能够在Heroku上部署应用程序？ 一旦使应用程序运行，就可以启用并检查真正导致此错误的原因。
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