When I run rake doc:rails
it fails with an error don't know how to build task /Users/bigtunacan/.rvm/gems/ruby-1.9.3-p547@rails3/gems/rspec-activemodel-mocks-1.0.1/README.rdoc
This appears then that it is trying to generate docs for the gems as well as my app. Is there a way to have the task skip gems?