正如标题所述，我试图建立一个Ubuntu 16.04系统来处理rails应用程序。当我注释掉fog gem时，服务器在本地启动，并且在其中留下gem会产生下面的错误消息。谷歌搜索似乎没有提供任何东西，因为我无法找到与我相同的错误的其他人，我不能简单地从应用程序中删除宝石，因为它需要。
完整信息如下：
/home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require': cannot load such file -- xmlrpc/client (LoadError)
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `block in require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:259:in `load_dependency'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/fog-1.28.0/lib/fog/xenserver/core.rb:15:in `<class:Connection>'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/fog-1.28.0/lib/fog/xenserver/core.rb:14:in `<module:XenServer>'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/fog-1.28.0/lib/fog/xenserver/core.rb:5:in `<module:Fog>'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/fog-1.28.0/lib/fog/xenserver/core.rb:4:in `<top (required)>'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `block in require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:259:in `load_dependency'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/fog-1.28.0/lib/fog/xenserver/compute.rb:1:in `<top (required)>'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `block in require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:259:in `load_dependency'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/fog-1.28.0/lib/fog/xenserver.rb:1:in `<top (required)>'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `block in require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:259:in `load_dependency'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/activesupport-5.0.1/lib/active_support/dependencies.rb:293:in `require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/fog-1.28.0/lib/fog.rb:63:in `<top (required)>'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/bundler-1.14.0/lib/bundler/runtime.rb:91:in `require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/bundler-1.14.0/lib/bundler/runtime.rb:91:in `block (2 levels) in require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/bundler-1.14.0/lib/bundler/runtime.rb:86:in `each'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/bundler-1.14.0/lib/bundler/runtime.rb:86:in `block in require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/bundler-1.14.0/lib/bundler/runtime.rb:75:in `each'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/bundler-1.14.0/lib/bundler/runtime.rb:75:in `require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/bundler-1.14.0/lib/bundler.rb:107:in `require'
from /home/mark/projects/walkabout/config/application.rb:7:in `<top (required)>'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/railties-5.0.1/lib/rails/commands/commands_tasks.rb:88:in `require'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/railties-5.0.1/lib/rails/commands/commands_tasks.rb:88:in `block in server'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/railties-5.0.1/lib/rails/commands/commands_tasks.rb:85:in `tap'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/railties-5.0.1/lib/rails/commands/commands_tasks.rb:85:in `server'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/railties-5.0.1/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
from /home/mark/.rvm/gems/ruby-2.4.0/gems/railties-5.0.1/lib/rails/commands.rb:18:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
如果有人可以告诉我如何下载/安装xmlrpc客户端或解决可能会感激的问题。
答案 0 :(得分：31)
所以问题是从Ruby 2.4.0开始，之前与ruby捆绑在一起的xmlrpc库已被提取到gem。所以你必须将它添加到你的gem文件并再次捆绑。
gem 'xmlrpc'