Error: You tried to use polymer without loading it first. To load polymer

[miguelseguray]

(not speak English)

Hello, I have a problem using "polymer-core-rails" in my rails project.

I have installed and configured the following

Gemfile

gem 'polymer-rails', '0.2.5' gem 'polymer-core-rails', '0.2.0'

assets/components/application.html.erb

// = Require polymer / polymer // = Require core-ajax / core-ajax // = Require core-input / core-input

assets/javascripts/application.js

//= require polymer/webcomponents //= require jquery //= require jquery_ujs //= require turbolinks //= require_tree .

Only with this get the following error in the browser

ERROR

SyntaxError: missing; before statement {"version": 3, "file", "polymer.js", "sources": ["polymer.concat.js"], "name

Error: You tried to use polymer without loading it first. To load polymer,

... r === or && (window.Polymer = function () {throw new Error ('You tried to use polymer with ...

END ERROR

when I use "polymer-rails" alone without "polymer-core-rails" works fine polymer.