Can't access to bootstrap methods when including bootstrap via application.js - ruby-on-rails-3

Question

First of all, my gemfile
gem 'mysql2'
gem 'json'
gem 'jquery-rails'
gem 'dynamic_form'
gem 'haml-rails'
gem 'geocoder'
gem 'delayed_job_active_record'
gem 'daemons'
gem 'pry'
gem 'debugger'
gem 'unicorn'
gem 'rest-client'
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails', '~> 3.2.3'
gem 'coffee-rails', '~> 3.2.1'
gem 'anjlab-bootstrap-rails', '>= 2.1', :require => 'bootstrap-rails'
gem 'therubyracer', :platforms => :ruby
gem 'uglifier', '>= 1.0.3'
end
When I have this manifest in my application.js
//= require jquery
//= require jquery_ujs
//= require twitter/bootstrap
//= require_tree .
if I declare an input with the proper attributes, like this
<input autocomplete="off" data-provide="typeahead" data-source="['Alicante','Albacete']" size="30" type="text">
it works like magic, but I can't do this in my own js
$('#my_input').typeahead()
// => TypeError: Object [object Object] has no method 'typeahead'
However, if I remove bootstrap from the manifest and I include it my layout explicitly
= javascript_include_tag "application", "bootstrap.min"
both ways work.
Can anyone explain me why? Maybe the uglifier of the asset pipeline is namespacing bootstrap functions? How fix it?

Answer 1

Use //= require twitter/bootstrap
https://github.com/anjlab/bootstrap-rails
Edit:
Which gem are you using? twitter-bootstrap-rails, bootstrap-rails or something else?
if using twitter-bootstrap-rails then did you already call rails generate bootstrap:install to set it up?
Does changing the order makes a difference? Try it like this
//= require jquery_ujs
//= require jquery
//= require twitter/bootstrap
//= require_tree .

Answer 2

I've just solved the problem.
It seems that this behavior happens when Bootstrap is being loaded twice (no idea why).
I can't say why that happened, maybe because I tried a couple gems of Bootstrap, but there was a problem with my auto-compiled assets in /public that are generated in production environment.
I run rake assets:clear (task provided by github.com/anjlab/bootstrap-rails) y all works fine again.