OpenShift Client Toolsのインストール時に提示されるdl/import(LoadError)の問題の解決

Rubyとgitが正常にインストールされた後、rhc setupを実行すると次のエラーが表示されます.
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:in require' 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:in require' 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:in require' 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:in require' 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:in require' 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:in require' 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:in require' 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:in require' 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:in require' 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:in block 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:in load' 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 '
解決策は次のとおりです.
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