[Rails] Error with rake command

Getting error with rake db:migrate command:

ERROR: "rake/rdoctask" is obsolete and no longer supported.Use Rdoc/task
(available in RDoc 2.4.2+) instead.

Help me please

--
Posted via http://www.ruby-forum.com/.

--
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.