我正在安装Ruby on Rails Web应用程序，在应用rake db:migrate命令时遇到问题。
rake db:migrate导致提及错误，完整跟踪如下：
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
D:/Ansi/ansi_smspro342/vendor/plugins/fedena_oauth2_provider/lib/oauth2/provider/model_base.rb:3
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
D:/Ansi/ansi_smspro342/vendor/plugins/fedena_oauth2_provider/lib/fedena_oauth2_provider.rb:6
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
D:/Ansi/ansi_smspro342/vendor/plugins/fedena_oauth2_provider/init.rb:5:in `evaluate_init_rb'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin.rb:158:in `evaluate_init_rb'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence_warnings'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin.rb:154:in `evaluate_init_rb'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin.rb:48:in `load'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin/loader.rb:38:in `load_plugins'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin/loader.rb:37:in `each'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/plugin/loader.rb:37:in `load_plugins'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:369:in `load_plugins'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:165:in `process'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `send'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `run'
D:/Ansi/ansi_smspro342/config/environment.rb:5
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `gem_original_require'
C:/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:29:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
C:/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
C:/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/tasks/misc.rake:4
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain'
C:/Ruby187/lib/ruby/1.8/monitor.rb:242:in `synchronize'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain'
C:/Ruby187/lib/ruby/1.8/monitor.rb:242:in `synchronize'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke'
C:/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task'
提前致谢！
答案 0 :(得分：0)
gem validatable已超过6年，所以我不敢问，这个项目有什么Rails版本。
无论如何，安装gem validatable（或运行bundle install，如果你没有），迁移应该通过。
答案 1 :(得分：0)
好的我通过安装gem validatable解决了这个问题。