pt@pt-laptop:~$ sudo gem install  wx
ERROR:  could not find gem wx locally or in a repository
pt@pt-laptop:~$ irb
irb(main):001:0> require "wx"
LoadError: 
/usr/local/ruby/lib/ruby/gems/1.9.1/gems/wxruby-2.0.1-x86-linux/lib/wxruby2.so: 
symbol _ZN13wxAuiNotebook14ShowWindowMenuEv, version WXU_2.8.5 not 
defined in file libwx_gtk2u_aui-2.8.so.0 with link time reference - 
/usr/local/ruby/lib/ruby/gems/1.9.1/gems/wxruby-2.0.1-x86-linux/lib/wxruby2.so
  from 
/usr/local/ruby/lib/ruby/gems/1.9.1/gems/wxruby-2.0.1-x86-linux/lib/wx.rb:12:in 
`require'
  from 
/usr/local/ruby/lib/ruby/gems/1.9.1/gems/wxruby-2.0.1-x86-linux/lib/wx.rb:12:in 
`<top (required)>'
  from (irb):1:in `require'
  from (irb):1
  from /usr/local/ruby/bin/irb:12:in `<main>'
irb(main):002:0>

what's matter?

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