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客户端或解决这个问题,我将不胜感激.
