Problem z instalacją

Witam próbuje zainstalować compass i dostaje taki o to msg:

C:\Users\Anna&Paweł>gem install rails
C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/defaults.rb:43:in exist?': "\x88" to UTF-8 in conversion from Windows-1250 to UTF-8 (Encoding::UndefinedConversion Error) from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/defaults.rb:43:indef
ault_path’
from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems.rb:752:in path' from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/source_index.rb:59:ininstalled_spec_directories’
from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems.rb:1051:in source_ind ex' from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/gem_path_searcher.rb:1 35:ininit_gemspecs’
from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/gem_path_searcher.rb:1
4:in initialize' from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems.rb:1010:innew’
from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems.rb:1010:in searcher' from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems.rb:558:infind_files’

    from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems.rb:1185:in `load_plugi

ns’
from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/gem_runner.rb:85:in < top (required)>' from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i nrequire’
from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:i
n require' from C:/Ruby192/bin/gem:18:in

C:\Users\Anna&Paweł>

Czy ktoś wie o co chodzi?!?!

chodzi o windows ;]

spróbuj w wątku o instalacji pod windows, gdzieś był i jakiś gotowy instalator jest.