無法在Ruby on Rails中創建控制器

Question

C:\Sites\blog\bin>rails generate controller Welcome index 

我正在嘗試爲我的博客應用程序創建一個控制器。當我運行命令時，我得到了下面的錯誤。

是否在此卸載唯一選項？

C:/Sites/blog/config/initializers/new_framework_defaults.rb:15:in `<top (required)>': undefined method `to_time_preserves_timezone=' for ActiveSupport:Module (NoMethodError) 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:268:in `load' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:268:in `block in load' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:240:in `load_dependency' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:268:in `load' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.5.1/lib/rails/engine.rb:652:in `block in load_config_initializer' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/activesupport-4.2.5.1/lib/active_support/notifications.rb:166:in `instrument' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.5.1/lib/rails/engine.rb:651:in `load_config_initializer' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.5.1/lib/rails/engine.rb:616:in `block (2 levels) in <class:Engine>' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.5.1/lib/rails/engine.rb:615:in `each' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.5.1/lib/rails/engine.rb:615:in `block in <class:Engine>' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.5.1/lib/rails/initializable.rb:30:in `instance_exec' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.5.1/lib/rails/initializable.rb:30:in `run' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.5.1/lib/rails/initializable.rb:55:in `block in run_initializers' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/tsort.rb:226:in `block in tsort_each' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/tsort.rb:418:in `block (2 levels) in each_strongly_connected_component_from' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/tsort.rb:427:in `each_strongly_connected_component_from' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/tsort.rb:417:in `block in each_strongly_connected_component_from' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.5.1/lib/rails/initializable.rb:44:in `each' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.5.1/lib/rails/initializable.rb:44:in `tsort_each_child' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/tsort.rb:411:in `call' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/tsort.rb:411:in `each_strongly_connected_component_from' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/tsort.rb:347:in 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/tsort.rb:224:in `tsort_each' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/2.1.0/tsort.rb:205:in `tsort_each' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.5.1/lib/rails/initializable.rb:54:in `run_initializers' 
     from C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-`require_application_and_environment!' 

     from bin/rails:4:in `require' 
     from bin/rails:4:in `<main>' 

Answer 1

我想，你是在Windows版本的Rails，現在你正在嘗試Rails的官方指南。這意味着你現在還沒有創建任何其他的東西。 在重新安裝Rails之前，我認爲你應該嘗試使用bundle install命令。 如果這不起作用 - 請嘗試重新安裝。