[Rails] load_initializer' on rails 3

any one can help

after move from 2.3.17  to rails 3.0.0

i am get error

boot.rb:55:in `require': cannot load such file -- initializer (LoadError)

/config/boot.rb:55:in `load_initializer'

--
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe@googlegroups.com.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/d6bf2330-f1b8-43b3-a385-64cf55e27bd4%40googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.