migrate generate an error with character utf8

hi,

i have this message NoMethodError: undefined method `ord' for 0:Fixnum: SET NAMES 'utf8'

when i use the command rake db:migrate

Have you an idea ?

here my files : http://patxi.mayol.free.fr/public/database.yml http://patxi.mayol.free.fr/public/001_create_livres.rb http://patxi.mayol.free.fr/public/config_mysql.txt

thanks

My config : Windows XP PRO SP3 wamp 2.0 with mysql 5.0.51b apatana 2.0 rails 2.3.2 ruby server 1.8.6 rubygems 1.3.5