ruby-on-rails - 无法启动 Rails 服务器或控制台 - (crack/xml) LoadError

Question

我在整个网络上进行了搜索，但未能找到解决此错误的方法。每次我尝试启动 Rails 服务器，甚至是 Rails 控制台时，我都会得到一个 crack/xml (LoadError)。有人有任何他们认为可以帮助我正确启动和运行 rails 的建议吗？

Construct Coverage: rails s
/Users/Construct/.rvm/gems/ruby-1.9.3-p194@coverage/gems/ap-0.1.1/lib/ap.rb:2:in `require': cannot load such file -- crack/xml (LoadError)
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@coverage/gems/ap-0.1.1/lib/ap.rb:2:in `<top (required)>'
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:68:in `require'
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:66:in `each'
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:66:in `block in require'
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:55:in `each'
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:55:in `require'
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler.rb:119:in `require'
    from /Users/Construct/Dropbox/rails_projects/Coverage/config/application.rb:7:in `<top (required)>'
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@coverage/gems/railties-3.2.1/lib/rails/commands.rb:53:in `require'
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@coverage/gems/railties-3.2.1/lib/rails/commands.rb:53:in `block in <top (required)>'
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@coverage/gems/railties-3.2.1/lib/rails/commands.rb:50:in `tap'
    from /Users/Construct/.rvm/gems/ruby-1.9.3-p194@coverage/gems/railties-3.2.1/lib/rails/commands.rb:50:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

我尝试安装 crack gem 然后运行 ​​bundler，但我仍然遇到同样的错误，即使在终端重新启动后也是如此。所以我不确定如何解决这种情况。

Answer 1

我得到了@apneadiving 解决方案。

我也试过更换

gem 'ap'

与

gem 'awesome_print'

在 Gemfile 中。

这似乎也有效。

更新:似乎 ap 可能是 awesome_print gem 的 html/xml 版本。