How to get Annotate gem to work?

I've included annotate-models in my :development group, removed Gemfile.lock, ran bundle install, and still it breaks.

$ annotate User
/usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/polyglot-0.3.1/lib/polyglot.rb:64:in `polyglot_original_require': no such file to load -- annotate/annotate_models (LoadError)
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/polyglot-0.3.1/lib/polyglot.rb:64:in `require'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:239:in `require'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:225:in `load_dependency'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:596:in `new_constants_in'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:225:in `load_dependency'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/activesupport-3.0.3/lib/active_support/dependencies.rb:239:in `require'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/annotate-2.4.0/lib/tasks/annotate_models.rake:3
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each'
from /usr/local/Cellar/ruby-enterprise-editi开发者_如何学编程on/2010.02/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/1.8/monitor.rb:242:in `synchronize'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/lib/ruby/gems/1.8/gems/annotate-2.4.0/bin/annotate:67
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/bin/annotate:19:in `load'
from /usr/local/Cellar/ruby-enterprise-edition/2010.02/bin/annotate:19

Any ideas?

Are you running this from the command prompt? If so try bundle exec annotate User to use your bundled gems rather than the system gems.

And is the gem called 'annotate' or 'annotate-models'?

Shouldn't it be annotate gem? Its github repo is called annotate_models.

annotate-models gem is different and hasn't been updated for a while.