Ruby '；必须设置HOME Environment变量并将其pint到目录'；错误

我正在尝试在Windows计算机上运行Ruby（不问…）。当我输入“irb”时，我收到：

$ irb
C:/Ruby22/lib/ruby/site_ruby/2.2.0/rbreadline.rb:1097:in `<module:RbReadline>': HOME environment variable (or HOMEDRIVE and HOMEPATH) must be set and point to a directory (RuntimeError)
        from C:/Ruby22/lib/ruby/site_ruby/2.2.0/rbreadline.rb:17:in `<top (required)>'
        from C:/Ruby22/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        from C:/Ruby22/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        from C:/Ruby22/lib/ruby/site_ruby/2.2.0/readline.rb:10:in `<module:Readline>'
        from C:/Ruby22/lib/ruby/site_ruby/2.2.0/readline.rb:8:in `<top (required)>'
        from C:/Ruby22/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        from C:/Ruby22/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        from C:/Ruby22/lib/ruby/2.2.0/irb/input-method.rb:129:in `<module:IRB>'
        from C:/Ruby22/lib/ruby/2.2.0/irb/input-method.rb:14:in `<top (required)>'
        from C:/Ruby22/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        from C:/Ruby22/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        from C:/Ruby22/lib/ruby/2.2.0/irb.rb:18:in `<top (required)>'
        from C:/Ruby22/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        from C:/Ruby22/lib/ruby/2.2.0/rubygems  

---

如果有什么明显的关于我应该如何设置这个，请告诉我。谢谢

此问题似乎是基于以下内容解决的：。尝试更新你的gem

$ ruby -v
ruby 2.2.4p230 (2015-12-16 revision 53155) [i386-mingw32]