Unable to install couchbase gem v. 1.3.5 on windows 7

This fix for Windows solve the problem but… with the ‘couchbase-model’ gem, I think, there are a problem.

I’m trying to run: rails generate couchbase:config

but an error shows appears:

F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/couchbase-model-0.5.3/lib/couchbase/model.rb:20:in require': cannot load such file -- couchbase (LoadError) from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/couchbase-model-0.5.3/lib/couchbase/model.rb:20:in<top (required)>'
from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/couchbase-model-0.5.3/lib/couchbase-model.rb:18:in require' from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/couchbase-model-0.5.3/lib/couchbase-model.rb:18:in<top (required)>'
from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.6.0.pre.2/lib/bundler/runtime.rb:76:in require' from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.6.0.pre.2/lib/bundler/runtime.rb:76:inblock (2 levels) in require’
from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.6.0.pre.2/lib/bundler/runtime.rb:72:in each' from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.6.0.pre.2/lib/bundler/runtime.rb:72:inblock in require’
from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.6.0.pre.2/lib/bundler/runtime.rb:61:in each' from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.6.0.pre.2/lib/bundler/runtime.rb:61:inrequire’
from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/bundler-1.6.0.pre.2/lib/bundler.rb:132:in require' from F:/proyectos/src/doudo/config/application.rb:13:in<top (required)>'
from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.16/lib/rails/commands.rb:24:in require' from F:/devel/RoR/compiler/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.16/lib/rails/commands.rb:24:in<top (required)>'
from script/rails:6:in require' from script/rails:6:in

Any ideas or suggestions? thanks you.