Problem when i try deploy mephisto

Hello everybody… now i finish my first mephisto application and try
deploy. In my development machine everything is fine on Rails 2.0.2
and last version of mephisto on Mephisto repository. But when i try
deploy and run rake db:bootstrap RAILS_ENV=production to make my db
ready fo mephist i get strange error:

uninitialized constant CodeRay::Encoders::PluginHost

The suport on rails playground said to freeze rails 1.2.x but in
development machine the application run on 2.0.2 and i don’t want
regress my mephisto do 1.2.x …

Somebody can help?

Thanks.

I don’t know why but everything works after delete db user and create
another.