【发布时间】：2011-01-18 05:21:43
【问题描述】：
最近，我的 Rails 应用程序让我大吃一惊。我通过像往常一样运行“ruby 脚本/服务器”来启动我的本地服务器。服务器启动，但是当我尝试通过“http://localhost:3000/”访问它时，它会抛出 500 错误。这发生在我所有的 Rails 应用程序上，即使是我几个月来没有改变的旧应用程序。这是完整的跟踪：
/!\ FAILSAFE /!\ 2010-02-17 23:34:46 -0800
Status: 500 Internal Server Error
uninitialized constant FFI::Platform::CPU
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:440:in `rescue in load_missing_constant'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:436:in `load_missing_constant'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:80:in `const_missing_with_dependencies'
/Users/elpizochoi/.gem/ruby/1.9.1/gems/ffi-0.6.2/lib/ffi/platform.rb:50:in `<module:Platform>'
/Users/elpizochoi/.gem/ruby/1.9.1/gems/ffi-0.6.2/lib/ffi/platform.rb:32:in `<module:FFI>'
/Users/elpizochoi/.gem/ruby/1.9.1/gems/ffi-0.6.2/lib/ffi/platform.rb:29:in `<top (required)>'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `block in require'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
/Users/elpizochoi/.gem/ruby/1.9.1/gems/ffi-0.6.2/lib/ffi/ffi.rb:42:in `<top (required)>'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `block in require'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
/Users/elpizochoi/.gem/ruby/1.9.1/gems/ffi-0.6.2/lib/ffi.rb:11:in `<top (required)>'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `block in require'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
/opt/local/lib/ruby/gems/1.9.1/gems/sqlite3-0.0.8/lib/sqlite3.rb:1:in `<top (required)>'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `block in require'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/core_ext/kernel/requires.rb:7:in `block in require_library_or_gem'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence_warnings'
/opt/local/lib/ruby/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/core_ext/kernel/requires.rb:5:in `require_library_or_gem'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/sqlite3_adapter.rb:10:in `sqlite3_connection'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `new_connection'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:in `block (2 levels) in checkout'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `loop'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `block in checkout'
/opt/local/lib/ruby/1.9.1/monitor.rb:190:in `mon_synchronize'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:183:in `checkout'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:98:in `connection'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:326:in `retrieve_connection'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_specification.rb:123:in `retrieve_connection'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:in `connection'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:9:in `cache'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:28:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_controller/string_coercion.rb:25:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/head.rb:9:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_controller/params_parser.rb:15:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_controller/session/cookie_store.rb:93:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_controller/failsafe.rb:26:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/lock.rb:11:in `block in call'
<internal:prelude>:8:in `synchronize'
/opt/local/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:114:in `block in call'
/opt/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_controller/reloader.rb:34:in `run'
/opt/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:108:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/rails-2.3.5/lib/rails/rack/static.rb:31:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in `block in call'
/opt/local/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `each'
/opt/local/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/rails-2.3.5/lib/rails/rack/log_tailer.rb:17:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/content_length.rb:13:in `call'
/opt/local/lib/ruby/gems/1.9.1/gems/rack-1.0.1/lib/rack/handler/webrick.rb:50:in `service'
/opt/local/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
/opt/local/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
/opt/local/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'
配置：我用 MacPorts 安装了 Ruby 1.9，并在 Rails 2.3.5 上运行。 我最近一直在玩的一些东西： - 与 RVM 混为一谈 - 试用 Homebrew，一个 MacOSX 包管理系统 - 将 Unicorn 和 Thin 安装为 gems
任何帮助将不胜感激！我宁愿不必废弃我的系统并重新安装所有东西。
【问题讨论】：
标签： ruby-on-rails sqlite localhost sqlite3-ruby