beech,

Finally it's works. The second "App" directory was missing.

The right dir structure is:

App
|+- App.pl
|- App
|  |- I18N
|     |- fr.pm
|     +- pt_br.pm
[download]

Thank you very much for your help beech

Maybe i'll create a github for the truly mojolicious rookies like me. haha
It's an awesome web framework.