title: Laravel 5.2: Unable to locate factory with name [default]
body: <p>I want to seed database 
  when I use this </p>
  
  <pre><code> public function run()
  {
      $users = factory(app\User::class, 3)-&gt;create();
  }
  </code></pre>
  
  <p>Add three user in database but when I use this  </p>
  
  <pre><code> public function run()
  {
      $Comment= factory(app\Comment::class, 3)-&gt;create();
  }
  </code></pre>
  
  <p>Show me error</p>
  
  <blockquote>
    <p>[InvalidArgumentException]<br>
    Unable to locate factory with name [default] [app\Comment].</p>
  </blockquote>