Rails：Heroku第一次部署失败

Question

我认为问题在于我在使用SQLite3，所以我迁移到了PostgreSQL，但问题仍然存在。该应用在当地正常工作。我打开我的应用程序的Heroku与打开，它给了我下面的错误：

Application Error. An error occurred in the application and your page could not be served. Please try again in a few moments. If you are the application owner, check your logs for details.. 

我试图通过查看日志来寻找解决方案，但是失败了，所以我需要别人的帮助。 这里是我的日志，我感谢任何帮助！

2012-11-19T00:55:37+00:00 heroku[web.1]: Starting process with command `bundle exec thin start -R config.ru -e production -p 3545` 
2012-11-19T00:55:39+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 
the release notes for more on this: http://weblog.rubyonrails.org/2012/01/04/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5) 
2012-11-19T00:55:39+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 
the release notes for more on this: http://weblog.rubyonrails.org/2012/01/04/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5) 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/application.rb:136:in `initialize!' 
2012-11-19T00:55:41+00:00 app[web.1]: /app/config/initializers/formtastic.rb:2:in `<top (required)>': uninitialized constant Formtastic (NameError) 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/engine.rb:588:in `block (2 levels) in <class:Engine>' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/initializable.rb:30:in `run' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/engine.rb:587:in `each' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/initializable.rb:55:in `block in run_initializers' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/initializable.rb:30:in `instance_exec' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/engine.rb:587:in `block in <class:Engine>' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/initializable.rb:54:in `each' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/initializable.rb:54:in `run_initializers' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/railtie/configurable.rb:30:in `method_missing' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/config/environment.rb:5:in `<top (required)>' 

2012-11-19T00:55:41+00:00 app[web.1]: from config.ru:3:in `require' 
2012-11-19T00:55:41+00:00 app[web.1]: from config.ru:3:in `block in <main>' 
2012-11-19T00:55:41+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' 
2012-11-19T00:55:41+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' 
2012-11-19T00:55:41+00:00 app[web.1]: from config.ru:1:in `new' 
2012-11-19T00:55:41+00:00 app[web.1]: from config.ru:1:in `<main>' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/thin-1.5.0/lib/rack/adapter/loader.rb:33:in `eval' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/thin-1.5.0/lib/rack/adapter/loader.rb:33:in `load' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/thin-1.5.0/lib/thin/controllers/controller.rb:181:in `load_rackup_config' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/thin-1.5.0/lib/thin/runner.rb:187:in `run_command' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/thin-1.5.0/lib/thin/runner.rb:152:in `run!' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/thin-1.5.0/bin/thin:6:in `<top (required)>' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/bin/thin:19:in `load' 

2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/bin/thin:19:in `<main>' 
2012-11-19T00:55:41+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/thin-1.5.0/lib/thin/controllers/controller.rb:71:in `start' 
2012-11-19T00:55:42+00:00 heroku[web.1]: Process exited with status 1 
2012-11-19T00:56:34+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/ host=fast-savannah-6843.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes= 
2012-11-19T00:56:34+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=fast-savannah-6843.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes= 
2012-11-19T00:57:44+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/ host=fast-savannah-6843.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes= 
2012-11-19T00:57:44+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=fast-savannah-6843.herokuapp.com fwd= dyno= queue= wait= connect= service= status=503 bytes= 

Answer 1

对于首次部署者，这里是我的问题，我是如何解决他们：

1 RailsInstaller和Heroku的列工具不能完美兼容：如果遇到问题在安装Heroku工具栏后，我建议您一并删除railsinstaller和heroku工具栏，然后重新安装railsinstaller。然后，在您的gem文件中，只需添加gem 'heroku'并运行软件包安装。我不需要任何额外的东西来成功部署我的应用程序。 Heroku Toolbelt安装红宝石1.9.2 v，并为您的偏好添加错误路径。你可以选择手动修复这个PATH到正确的位置，例如）C：RailsInstaller：Ruby1.9.3，但我发现重新安装所有东西更容易。

2.您必须迁移从sqlite3的到PostgreSQL：遵循this，如果你不知道如何做到这一点。

3.按照Heroku教程最终部署您的应用程序：follow this。如果您收到错误消息，提示“对象不存在”，请尝试运行heroku run rake db:migrate。

祝你好运部署！