Ruby on rails 无法在Rails应用程序中使用Mechanize:NameError:未初始化常量Mechanize

我添加了一个宝石：

gem 'mechanize'

并将它们捆绑在一起：

bundle

我在gemfile.lock中看到：

mechanize (2.7.5)
  domain_name (~> 0.5, >= 0.5.1)
  http-cookie (~> 1.0)
  mime-types (>= 1.17.2)
  net-http-digest_auth (~> 1.1, >= 1.1.1)
  net-http-persistent (~> 2.5, >= 2.5.2)
  nokogiri (~> 1.6)
  ntlm-http (~> 0.1, >= 0.1.1)
  webrobots (>= 0.0.9, < 0.2)

---

我该怎么办？一切都设置好了，rails应用程序没有看到Mechanize。我正在使用win10 bash、ruby 2.4.0、rails 5.0.3

是否需要在irb中使用

require'mechanize

手动执行mechanize操作？这可能是因为您做了一些“奇怪”的事情，比如使用错误的ruby版本绑定，或者重新加载过时的rails控制台，或者在不同的项目中绑定/打开控制台。。。。这可能值得一次快速的健全性检查。你真的应该这样做，我测试了一个几乎相同的设置，它工作正常。@UKASzczcześniak健全性检查：你能

bundle show mechanize

，然后用

bundle exec rails控制台重试上面的操作吗？@UKASzczczcześniak它是spring吗？您是否已手动停止弹簧止动器
弹簧止动器
？
irb(main):001:0> Nokogiri
=> Nokogiri
irb(main):002:0> Mechanize
NameError: uninitialized constant Mechanize
        from (irb):2
        from /home/viters/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.3/lib/rails/commands/console.rb:65:in `start'
        from /home/viters/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.3/lib/rails/commands/console_helper.rb:9:in `start'
        from /home/viters/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.3/lib/rails/commands/commands_tasks.rb:78:in `console'
        from /home/viters/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.3/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
        from /home/viters/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/railties-5.0.3/lib/rails/commands.rb:18:in `<top (required)>'
        from /mnt/f/Nauka/crawler/bin/rails:9:in `<top (required)>'
        from /home/viters/.rbenv/versions/2.4.0/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
        from /home/viters/.rbenv/versions/2.4.0/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
        from -e:1:in `<main>'
irb(main):003:0>