Install breaks tabs...

[hy-brasil]

Hello,
I have ember-idx-tabs installed and am very happy with it.
So I decided to install the list as well.
I did the:
npm install --save-dev ember-idx-list

And did an ember build.
Now I get an error immediately in the app:

Uncaught TypeError: undefined is not a function
on
initializers/idx-tabs.js:13

The problem goes away when I npm uninstall idx-list

ember version info:
version: 0.1.2
node: 0.10.24
npm: 2.1.3

I have installed ember-addons.bs_for_ember. And am using bits from that...
Should I have done that?
Thanks

[hy-brasil]

My Brocfile.js looks like this:
/* global require, module */

var EmberApp = require('ember-cli/lib/broccoli/ember-app');

var app = new EmberApp();
app.import('bower_components/bootstrap/dist/js/bootstrap.js');
app.import('bower_components/bootstrap/dist/css/bootstrap.css');
app.import('bower_components/ember-addons.bs_for_ember/dist/js/bs-core.min.js');
app.import('bower_components/ember-addons.bs_for_ember/dist/js/bs-modal.min.js');
app.import('bower_components/ember-addons.bs_for_ember/dist/js/bs-alert.min.js');
app.import('bower_components/ember-addons.bs_for_ember/dist/js/bs-button.min.js');
app.import('bower_components/ember-addons.bs_for_ember/dist/js/bs-progressbar.min.js');
app.import('bower_components/ember-addons.bs_for_ember/dist/js/bs-breadcrumbs.min.js');
app.import('bower_components/ember-addons.bs_for_ember/dist/js/bs-nav.min.js');
app.import('bower_components/d3/d3.js');
app.import('bower_components/ember-data/ember-data.js');
app.import('bower_components/jquery-cookie/jquery.cookie.js');
//app.import('bower_components/ember-components/dist/globals/main.js');
//app.import('bower_components/ember-utils/dist/globals/main.js');

//app.import('node_modules/ember-radio-button/app/components/radio-button.js');
//app.import('bower_components/ic-ajax/lib/main.js');
var mergeTrees = require('broccoli-merge-trees');
var pickFiles = require('broccoli-static-compiler');

var bootstrapTree =
pickFiles('bower_components/bootstrap/fonts', {
srcDir: '/',
files: [
'glyphicons-halflings-regular.svg',
'glyphicons-halflings-regular.ttf',
'glyphicons-halflings-regular.eot',
'glyphicons-halflings-regular.woff'
],
destDir: '/fonts'
});

// Use app.import to add additional libraries to the generated
// output files.
//
// If you need to use different assets in different
// environments, specify an object as the first parameter. That
// object's keys should be the environment name and the values
// should be the asset to use in that environment.
//
// If the library that you are including contains AMD or ES6
// modules that you would like to import into your application
// please specify an object with the list of modules as keys
// along with the exports of each module as its value.

module.exports = mergeTrees([app.toTree(),bootstrapTree]);

[hy-brasil]

Just wondering would this help at all?
indexiatech/ember-idx-tabs#2

Thanks