我们遇到了服务器问题，因此更换的VM被启动了许多复制到新VM的项目（即Ubuntu 12.04） .
我正在运行cap部署到服务器，一切顺利，直到rake db：migrate步骤，此时我得到：
** [out :: 63.247.75.161]耙子中止了！ ** [out :: 63.247.75.161]未知验证者：'RedirectUriValidator' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activemodel-3.2.14/lib /active_model/validations/validates.rb:96:in rescue in block in validates' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activemodel-3.2.14/lib/active_model/validations/validates.rb:93:in block in validates'** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activemodel-3.2 . 14 / lib / active_model / validations / validates.rb:90:in each' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activemodel-3.2.14/lib/active_model/validations/validates.rb:90:in validates'** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/doorkeeper-0.6 .7 / lib / doorkeeper / models / application.rb:10:in <class:Application>' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/doorkeeper-0.6.7/lib/doorkeeper/models/application.rb:2:in '** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/doorkeeper-0.6 .7 / lib / doorkeeper / models / application.rb：1：in <top (required)>' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in require'** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activesupport- 3.2.14 / lib / active_support / dependencies.rb:251:in block in require' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:236:in load_dependency'** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activesupport-3.2 .14 / lib / active_support / dependencies.rb:251:in require' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/doorkeeper-0.6.7/lib/doorkeeper/config.rb:24:in enable_orm'** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/doorkeeper-0.6.7/lib/doorkeeper/config.rb:10:in configure' ** [out :: 63.247.75.161] /var/www/test/releases/20131011015404/config/initializers/doorkeeper.rb:2:in '** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:245:in load' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:245:in block in load'** [out： ：63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:236:in load_dependency' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:245:in load'** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/engine.rb:593:in block (2 levels) in <class:Engine>' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/engine.rb:592:in each'** [out :: 63.247 .75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/engine.rb:592:in block in <class:Engine>' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/initializable.rb:30:in instore_exec'** [out :: 63.247 . 75.161] ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/initializable.rb:30:in run' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/initializable.rb:55:in block在run_initializers'** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/initializable.rb:54 ：in each' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/initializable.rb:54:in run_initializers'** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/application.rb:136： in initialize!' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/railtie/configurable.rb:30:in method_missing'** [out :: 63.247.75.161] /var/www/test/releases/20131011015404/config/environment.rb:5:in <top (required)>' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in require'** [out :: 63.247.75.161] / var / www / test / shared / bundle / ruby / 1.9.1 / gems / activesupport-3.2.14 / lib / active_support / dependencies.rb:251:in block in require' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:236:in load_dependency'** [out :: 63.247.75.161] / var / www /test/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in require' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/application.rb:103:in require_environment！ ' ** [out :: 63.247.75.161] /var/www/test/shared/bundle/ruby/1.9.1/gems/railties-3.2.14/lib/rails/application.rb:305:in `block (2 levels) in initialize_tasks' ** [out :: 63.247.75.161]任务：TOP => db：migrate => environment ** [out :: 63.247.75.161]（通过使用--trace运行任务查看完整跟踪）
我尝试了几种口味的门卫，还有红宝石1.9.2和1.9.3 .
我无法弄清楚为什么这会突然被打破 . 自上次部署以来，我已经做了很多应用程序更改，但是没有关于门卫实现的内容 .