Rails 3 Asset Pipeline: JQuery Datepicker is working, but Timepicker will not work at all

Question

The javascript console is giving me this error for any of the timepickers I've tried to integrate, though it does work fine for datepicker . Also datetimepicker doesn't work.

Uncaught TypeError: Object [object Object] has no method 'timePicker' 

I have tried a number of different timepicker libraries and none of them work.

Here is my application.js file:

//= require jquery
//= require jquery_ujs
//= require jquery.ui.all
//= require twitter/bootstrap
//= require bootstrap-datepicker
//= require bootstrap-timepicker
//= require jquery.timePicker
//= require jquery.timePicker.min
//= require schools

My application.css file:

*= require_self
*= require jquery.ui.all
*= require bootstrap_and_overrides
*= require formtastic-bootstrap
*= require formtastic_changes
*= require bootstrap-datepicker
*= require bootstrap-timepicker
*= require gmaps4rails
*= require schools
*= require timePicker

My Gemfile:

gem 'rails', '3.2.8'

group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'
  gem 'therubyracer', '~> 0.10.2'
  gem 'uglifier', '>= 1.0.3'
  gem 'jquery-rails'
  gem 'jquery-ui-rails'
  gem "twitter-bootstrap-rails"
end

gem 'sextant'
gem 'passenger'
gem 'formtastic', " ~> 2.1.1"
gem 'formtastic-bootstrap'
gem 'country_select'
gem 'slim'
gem 'redcarpet'
gem "auto_html"
gem 'gmaps4rails'
gem 'friendly_id'
gem 'devise'

gem 'capistrano'
gem 'unicorn'

gem 'bootstrap-datepicker-rails'
gem "bootstrap-timepicker-rails"

gem 'bcrypt-ruby', '~> 3.0.0'

group :development do
  gem 'sqlite3'
end

group :production do
  gem 'pg'
end

My schools.js file ('datepicker' is highlighted pink and 'timePicker' is highlighted brown. If I change 'timePicker' to anything other than 'datepicker', it stays brown):

$(document).ready( function(){
  $('#date_picker').datepicker();
  $('.time_picker').timePicker();
});

My view:

<% if current_user %>
  <h3>Create Reminder</h3>
  <%= form_tag create_user_reminder_path, method: 'post' do %>
    <%= select_datetime Time.now, :prompt => :date  %>
    <%= text_field_tag :date, nil, :id => "date_picker" %>
    <div class="input-append bootstrap-timepicker-component">
      <%= text_field_tag :time, nil, :class => "time_picker input-small" %>
      <span class="add-on">
          <i class="icon-time"></i>
      </span>
    </div>
    <%= text_area_tag :message %>
    <% if @school %>
      <% unless @school.id == current_user.school_id %>
        <%= hidden_field_tag :school_id, @school.id %>
      <% end %>
    <% end %>
    <%= submit_tag 'Save Reminder' %>
  <% end %>
<% end %>

Answer 1

Is it not $('.time_picker').timepicker(); instead of $('.time_picker').timePicker(); ?

(Note the small 'p' in timepicker)