title: angular.filter's groupBy filter : Unknown provider: groupByFilterProvider <- groupByFilter error
body: <p>I am new to angular, I need to use the angular.filter's <code>groupBy</code> filter but I am not sure how to include it. I followed the first 2 steps specified here: <a href="https://github.com/a8m/angular-filter#groupby" rel="nofollow noreferrer">https://github.com/a8m/angular-filter#groupby</a> but can't follow the third step, i.e Add 'angular.filter' to your main module's list of dependencies.</p>
  
  <p>This is the html file where I want to use it:</p>
  
  <pre><code>&lt;div&gt;
  &lt;table style="border-collapse: collapse"&gt;
  
      &lt;thead&gt;
          &lt;tr align="center" style="outline: thin solid black"&gt;
              &lt;th style="text-align: center"&gt;Review ID&lt;/th&gt;
              &lt;th style="text-align: center"&gt;Reported Count&lt;/th&gt;
              &lt;th style="text-align: center"&gt;Type of Review&lt;/th&gt;
              &lt;th style="text-align: center"&gt;Link to review&lt;/th&gt;
              &lt;th style="text-align: center"&gt;Expand/Collapse&lt;/th&gt;
          &lt;/tr&gt;
      &lt;/thead&gt;
  
      &lt;tbody ng-repeat="(key, value) in data | groupBy: 'ResourceId'"&gt;
  
          &lt;tr&gt;
              &lt;td&gt;{{key}}&lt;/td&gt;
              &lt;td&gt;{{value.length}}&lt;/td&gt;
              &lt;td&gt;type goes here&lt;/td&gt;
              &lt;td&gt;view&lt;/td&gt;
              &lt;td&gt;expand&lt;/td&gt;
          &lt;/tr&gt;
     &lt;/tbody&gt;
  &lt;/table&gt;
  
  &lt;/div&gt;
  </code></pre>
  
  <p>Error: <code>[$injector:unpr] Unknown provider: groupByFilterProvider &lt;- groupByFilter</code></p>
  
  <p>JS file is as follows:</p>
  
  <pre><code>var admin = angular.module('admin', ['ngRoute']);
  var delayTimer;
  
  admin.config([
    '$routeProvider',
    '$locationProvider',
     function($routeProvider, $locationProvider) {
        $routeProvider
        .when('/reported', {
          templateUrl: 'view/reported_reviews.html',
          controller: 'reportedController'
        })
     }
   ]);
  </code></pre>