Salut,
j’ai un contact qui aimerait desintaller rails (pour le reinstaller plus
proprement)
il a ce message 
C:\gem>“c:\ruby\bin\ruby.exe” “c:\ruby\bin\gem” uninstall activesupport
-v 1.3.1
Attempting to uninstall gem ‘activesupport’
ERROR: While executing gem … (RuntimeError)
Unknown RubyGem: activesupport (1.3.1)
Bolo