> After updating the gem to the last version, I've got a conflict with
> this gem.
>
> If you got a clue on what is wrong with my setup, I'm interested :-)
>
> /Library/Ruby/Gems/1.8/gems/logging-1.4.3/lib/logging/utils.rb:176:
> uninitialized constant Mutex (NameError)
That is a bug in the logging gem. You need to require "thread" before requiring the logging library.
Blessings,
TwP