Heroku應用程序錯誤 - 崩潰

Question

不知道爲什麼我的應用程序不斷崩潰。 任何人都可以診斷我的問題？這裏是我的日誌：

2012-08-14T20:45:26+00:00 heroku[web.1]: State changed from crashed to starting 
2012-08-14T20:45:29+00:00 heroku[web.1]: Starting process with command `bundle exec rails server -p 13851` 
2012-08-14T20:45:34+00:00 app[web.1]: 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 /app/config/environment.rb:5) 
2012-08-14T20:45:34+00:00 app[web.1]: 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 /app/config/environment.rb:5) 
2012-08-14T20:45:35+00:00 app[web.1]: => Booting WEBrick 
2012-08-14T20:45:35+00:00 app[web.1]: => Ctrl-C to shutdown server 
2012-08-14T20:45:35+00:00 app[web.1]: => Call with -d to detach 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/engine.rb:587:in `block in <class 
:Engine>' 
2012-08-14T20:45:35+00:00 app[web.1]: => Rails 3.2.6 application starting in production on http://0.0.0.0:13851 
2012-08-14T20:45:35+00:00 app[web.1]: Exiting 
2012-08-14T20:45:35+00:00 app[web.1]: /app/config/initializers/devise.rb:3:in `<top (required)>': uninitialized constant Devise (NameError) 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/initializable.rb:30:in `instance_exec' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/initializable.rb:55:in `block in run_initializers' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/application.rb:136:in `initialize!' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/engine.rb:587:in `each' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/initializable.rb:54:in `run_initializers' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/initializable.rb:30:in `run' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/initializable.rb:54:in `each' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/engine.rb:588:in `block (2 levels) in <class:Engine>' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/config.ru:4:in `require' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/railtie/configurable.rb:30:in `method_missing' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/config.ru:4:in `block in <main>' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/config/environment.rb:5:in `<top (required)>' 
2012-08-14T20:45:35+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' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/config.ru:1:in `new' 
2012-08-14T20:45:35+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' 
2012-08-14T20:45:35+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' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/config.ru:1:in `<main>' 
2012-08-14T20:45:35+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' 
2012-08-14T20:45:35+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' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/commands/server.rb:46:in `app' 
2012-08-14T20:45:35+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' 
2012-08-14T20:45:35+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' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/commands/server.rb:70:in `start' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/commands.rb:50:in `<top (required)>' 
2012-08-14T20:45:35+00:00 app[web.1]: from script/rails:6:in `require' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/commands.rb:55:in `block in <top (required)>' 
2012-08-14T20:45:35+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.6/lib/rails/commands.rb:50:in `tap' 
2012-08-14T20:45:35+00:00 app[web.1]: from script/rails:6:in `<main>' 
2012-08-14T20:45:37+00:00 heroku[web.1]: Process exited with status 1 
2012-08-14T20:45:37+00:00 heroku[web.1]: State changed from starting to crashed 
2012-08-14T20:46:33+00:00 heroku[router]: Error H10 (App crashed) -> GET sleepy-sands-3221.herokuapp.com/ dyno= queue= wait= service= status=503 bytes= 
2012-08-14T20:46:34+00:00 heroku[router]: Error H10 (App crashed) -> GET sleepy-sands-3221.herokuapp.com/favicon.ico dyno= queue= wait= service= status=503 bytes= 

Answer 1

閱讀您的日誌。它試圖加載Devise時出了什麼問題。

與此問題涉及一個問題：

why do I get uninitialized constant Devise name Error when running webrick server?