[英]Unable to install activerecord in Ruby on Rails 4.1.4
我無法在Ruby on Rails 4.1.4中安裝activerecord 。
我已經添加了gem 'activeadmin', github: 'activeadmin'在2002年底Gemfile並運行bundle install 。 它返回0，所以我嘗試運行rails g active_admin:install命令，但是它返回以下錯誤：
NameError：
install' for main:Object from (irb):3 from E:/software/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.1.4/lib/rails/commands/console.rb:90:in未定義局部變量或方法install' for main:Object from (irb):3 from E:/software/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.1.4/lib/rails/commands/console.rb:90:inE：/software/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.1.4/lib/rails/commands/console.rb： 9：在start' from E:/software/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:69:in從E中開始：/software/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb：40：在run_command!' from E:/software/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.1.4/lib/rails/commands.rb:17:inrun_command!' from E:/software/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.1.4/lib/rails/commands.rb:17:in'來自E：/ work / projects / src /require' from E:/work/projects/src/technical_support_timer/bin/rails:4:in的require' from E:/work/projects/src/technical_support_timer/bin/rails:4:in'來自-e：1：in的'來自-e：1：in的load' from -e:1:in'
為什么？ 我究竟做錯了什么？ 我該如何解決？
提前致謝。
IRB可以為您試用Ruby命令或代碼片段，並查看即時響應。 如果您要安裝或更新gem，建議您先運行quit並按照您的指示進行操作，以從IRB下車。
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