安装成功Ruby和git以后。执行rhc setup时提演示样例如以下错误：

C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in require‘: cannot load such file -- dl/import (LoadError) from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/net-ssh-2.9.2/lib/net/ssh/au thentication/pageant.rb:1:in <top (required)>‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54 :in require‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/net-ssh-2.9.2/lib/net/ssh/authentication/agent/socket.rb:5:in‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54 :in require‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/net-ssh-2.9.2/lib/net/ssh/au thentication/agent.rb:22:in <top (required)>‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54 :in require‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/net-ssh-2.9.2/lib/net/ssh/authentication/key_manager.rb:4:in‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54 :in require‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/net-ssh-2.9.2/lib/net/ssh/au thentication/session.rb:4:in <top (required)>‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54 :in require‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/net-ssh-2.9.2/lib/net/ssh.rb:11:in‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54 :in require‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/lib/rhc/ssh_helpe rs.rb:18:in <top (required)>‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/lib/rhc/wizard.rb:77:in‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/lib/rhc/wizard.rb :7:in <module:RHC>‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/lib/rhc/wizard.rb:6:in‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54 :in require‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/lib/rhc/commands/ base.rb:4:in <top (required)>‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/lib/rhc/commands/account.rb:2:in‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/lib/rhc/commands/ account.rb:1:in <top (required)>‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire‘ from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54 :in require‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/lib/rhc/commands.rb:189:inblock in load‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/lib/rhc/commands. rb:188:in each‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/lib/rhc/commands.rb:188:inload‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/lib/rhc/cli.rb:36 :in start‘ from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/rhc-1.35.1/bin/rhc:20:in‘ from C:/Ruby22-x64/bin/rhc:23:in load‘ from C:/Ruby22-x64/bin/rhc:23:in‘

解决方法例如以下：

Updating net-ssh to 2.9.3.beta1 (as cremno suggested in a comment above) resolved my problem:

For unix:

get install net-ssh -v 2.9.3.beta1

For windows:

gem install net-ssh -v 2.9.3.beta1

Before that I tried, but it didn‘t help:

get install net-ssh