I am relatively new to both Ember.js and Ember-cli and would really appreciate some help please with using a jquery tooltip in a custom view. All code is below, but when my template is injected, I get the following console error:

```
[Error] TypeError: 'undefined' is not a function (evaluating 'Ember.$().tooltip()')

```

I am using a custom view in a file called tooltip.js:

```
import Ember from 'ember';

export default Ember.View.extend({

  tagName:  'span',
  title:  'The tooltip title',
  html: true,
  placement:  'top',
  didInsertElement: function(){
    Ember.$().tooltip({"html": this.get('html'),  
                                        "title":this.get('title'),
                                        "placement":this.get('placement'), 
                                        container: 'body'});

  }
});

```

The relevant template code is:

```
{{#view "tooltip" titleBinding="item" placement="right"}}<span><img class="app_info_icon" id="typeInfoIcon" src="/assets/images/info_icon.png"></img></span>{{/view}}

```

How can I fix this please?