Heroku上的Rails部署崩溃答案

【问题标题】：Rails deployment on heroku crashingHeroku上的Rails部署崩溃
【发布时间】：2012-10-02 19:13:42
【问题描述】：

这是我第一次进行 Rails 部署，我一生都无法解决这个问题。由于某种原因，我无法让我的应用程序运行。这是我在运行 heroku 日志时得到的结果：

2012-10-12T01:44:29+00:00 heroku[web.1]: Starting process with command `bundle exec rails server thin -p 54445`
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:236:in `load_dependency'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:251:in `require'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/handler/thin.rb:1:in `<top (required)>'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/handler.rb:20:in `inject'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:251:in `block in require'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/handler.rb:20:in `get'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/handler.rb:20:in `each'
2012-10-12T01:44:34+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.1/lib/active_support/dependencies.rb:251:in `require': no such file to load -- thin (LoadError)
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:269:in `server'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands/server.rb:59:in `start'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/handler.rb:20:in `const_get'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands.rb:55:in `block in <top (required)>'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/handler.rb:20:in `block in get'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands.rb:50:in `tap'
2012-10-12T01:44:34+00:00 app[web.1]:   from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.1/lib/rails/commands.rb:50:in `<top (required)>'
2012-10-12T01:44:34+00:00 app[web.1]:   from script/rails:6:in `require'
2012-10-12T01:44:34+00:00 app[web.1]:   from script/rails:6:in `<main>'
2012-10-12T01:44:34+00:00 app[web.1]: Exiting
2012-10-12T01:44:35+00:00 heroku[web.1]: Process exited with status 1
2012-10-12T01:44:35+00:00 heroku[web.1]: State changed from starting to crashed

【问题讨论】：

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

【解决方案1】：

“真正的”错误是这样的：

`require': no such file to load -- thin (LoadError)

您可以将以下行添加到您的 gemfile 中，以使其正常工作：

 gem 'thin'

【讨论】：

我实际上有宝石，但它不工作。我相信问题出在group 块上，但我不确定。无论如何，我将它从group 中取出，将其单独放置并且它起作用了。感谢您的帮助！

【解决方案2】：

我认为您应该添加 2 个宝石，如下所示：

gem "heroku"
gem "thin"

然后运行命令行：bundle install

更多详情请查看：http://wowcode.herokuapp.com

【讨论】：