無法在Rails 4.0.2中加載“機械化”

Question

在Rails交互式外殼程序（ rails c ）中，出現一個錯誤，指出： No such file to load -- Mechanize'運行時require 'mechanize' 。

奇怪的是，當我在ruby shell（ irb ）上輸入require 'mechanize'時，我沒有收到任何錯誤。

輸出示例如下：

    rails c 
    Loading development environment (Rails 4.0.2)
    irb(main):001:0> require 'mechanize'
    LoadError: cannot load such file -- mechanize
     from /home/********/.gem/ruby/2.1.0/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `require'
     from /home/********/.gem/ruby/2.1.0/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `block in require'
      from /home/********/.gem/ruby/2.1.0/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:214:in `load_dependency'
      from /home/********/.gem/ruby/2.1.0/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `require'
from (irb):1
      from /home/********/.gem/ruby/2.1.0/gems/railties-4.0.2/lib/rails/commands/console.rb:90:in `start'
      from /home/********/.gem/ruby/2.1.0/gems/railties-4.0.2/lib/rails/commands/console.rb:9:in `start'
      from /home/********/.gem/ruby/2.1.0/gems/railties-4.0.2/lib/rails/commands.rb:62:in `<top (required)>'
      from bin/rails:4:in `require'
      from bin/rails:4:in `<main>'

問候

Answer 1

將此添加到Gemfile

gem 'mechanize'

然后在外殼上執行此命令

bundle