Rails 2 应用程序 + RubyGems 1.8.7 失败答案

【问题标题】：Rails 2 apps + RubyGems 1.8.7 failingRails 2 应用程序 + RubyGems 1.8.7 失败
【发布时间】：2011-08-05 15:20:45
【问题描述】：

在将 RubyGems 从旧版本升级到 1.8.7 后，我们的 Rails 2 应用程序将不再启动。使用消息undefined method 'name' for "POpen4":String 引发 NoMethodError。完整的堆栈跟踪如下：

[ pid=5996 thr=71772310 file=utils.rb:176 time=2011-08-05 16:14:59.635 ]: *** Exception NoMethodError in PhusionPassenger::ClassicRails::ApplicationSpawner (undefined method `name' for "POpen4":String) (process 5996, thread #<Thread:0x88e512c>):
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/gem_dependency.rb:239:in `=='
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems/dependency.rb:217:in `==='
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems/dependency.rb:217:in `matching_specs'
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `find_all'
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems/specification.rb:410:in `each'
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems/specification.rb:409:in `each'
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems/dependency.rb:216:in `find_all'
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems/dependency.rb:216:in `matching_specs'
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems/dependency.rb:238:in `to_specs'
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems/dependency.rb:256:in `to_spec'
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems.rb:1200:in `gem'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/gem_dependency.rb:57:in `add_load_paths'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:299:in `add_gem_load_paths'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:299:in `each'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:299:in `add_gem_load_paths'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:132:in `process'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:113:in `send'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:113:in `run'
    from /theapplicationdir/config/environment.rb:5
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
    from /opt/ruby-enterprise/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/classic_rails/application_spawner.rb:222:in `preload_application'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/classic_rails/application_spawner.rb:181:in `initialize_server'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/utils.rb:572:in `report_app_init_status'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/classic_rails/application_spawner.rb:174:in `initialize_server'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/abstract_server.rb:204:in `start_synchronously'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/abstract_server.rb:180:in `start'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/classic_rails/application_spawner.rb:149:in `start'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/spawn_manager.rb:219:in `spawn_rails_application'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/spawn_manager.rb:214:in `spawn_rails_application'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/abstract_server_collection.rb:82:in `synchronize'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/spawn_manager.rb:213:in `spawn_rails_application'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/spawn_manager.rb:132:in `spawn_application'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/abstract_server.rb:357:in `__send__'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
    from /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-3.0.8/helper-scripts/passenger-spawn-server:99

Rails 3 应用程序启动并运行良好。任何人对错误是什么以及我们如何解决它有任何想法？

对于一些环境信息 - 我们正在使用 Phusion Passenger 3.0.8、Nginx 和 REE 1.8.7。

【问题讨论】：

有希望将 Rails 2.3.2 应用程序拖到 2.3.12 吗？
您是否在同一台服务器上运行 Rails 2 和 Rails 3 应用程序？在那种情况下，您的 Rails 2 应用程序是否使用捆绑软件？还是两者都适用的 RVM？
我认为是u.u的依赖问题
@tadman 效果很好——我可以吻你！您想将其发布为答案以便我标记它吗？

标签： ruby-on-rails ruby rubygems passenger

【解决方案1】：

将您的应用程序升级到 2.3.12 可能会解决您在使用较新版本的 Ruby 时遇到的一些兼容性问题。维护版本通常会关注这些内容。

【讨论】：

【解决方案2】：

对我来说，解决方法是降级 rubygems：

$ gem update --system 1.3.6

【讨论】：