ember.js - Can’t get ember's application.hbs, or anything else, to render in rails app -

i'm trying new ember app running in existing rails app. when render root blank page, console showing:

 debug: ------------------------------- application.js:12147  debug: ember.version : 1.0.0-rc.3 application.js:12147  debug: handlebars.version : 1.0.0-rc.3 application.js:12147  debug: jquery.version : 1.9.1 application.js:12147  debug: ------------------------------- application.js:12147  deprecation: register("store", "main") deprecated in-favour of register("store:main");     @ object.container.register (http://localhost:3000/assets/application.js:18819:17)     @ application.initializer.initialize (http://localhost:3000/assets/application.js:46015:19)     @ http://localhost:3000/assets/application.js:39234:7     @ visit (http://localhost:3000/assets/application.js:38434:3)     @ dag.topsort (http://localhost:3000/assets/application.js:38488:7)     @ ember.application.ember.namespace.extend.runinitializers (http://localhost:3000/assets/application.js:39231:11)     @ ember.application.ember.namespace.extend._initialize (http://localhost:3000/assets/application.js:39188:10)     @ http://localhost:3000/assets/application.js:16309:19     @ object.ember.handleerrors (http://localhost:3000/assets/application.js:12209:17)  

my application.hbs has following:

<h1>mobile manager</h1> {{outlet}} 

and mdn(app).js has following:

//= require_self //= require_tree . //= require_tree ./models //= require_tree ./controllers //= require_tree ./views //= require_tree ./helpers //= require_tree ./templates //= require_tree ./routes  window.mdm = ember.application.create(); 

so ember loaded cant templates render. help!

edit::

my application.js follows:

// manifest file that'll compiled including files listed below. // add new javascript/coffee code in separate files in directory , they'll automatically // included in compiled file accessible     http://example.com/assets/application.js // it's not advisable add code directly here, if do, it'll appear @ bottom of // compiled file. // //= require jquery //= require handlebars //= require ember //= require ember-data //= require jquery_ujs //= require_tree ./lib //= require ./app/mdm.js