title: Invalid Configuration – yii\base\InvalidConfigException
body: <p>I'm using xampp for windows 8 and i have recently installed <code>dektrium/yii2-user</code>.
  I have followed the installation instructions here:</p>
  
  <pre><code>https://github.com/dektrium/yii2-user/blob/master/docs/installation.md
  </code></pre>
  
  <p>The changed part of my web.php looks now like this: </p>
  
  <pre><code>'user' =&gt; [
              'identityClass' =&gt; 'app\models\User',
              'enableAutoLogin' =&gt; true,
              'class' =&gt; 'dektrium\user\Module',
  
          ],
  </code></pre>
  
  <p>I'm getting the error:</p>
  
  <pre><code>Missing required parameter "id" when instantiating "dektrium\user\Module".
  </code></pre>
  
  <p>And when I delete</p>
  
  <pre><code>    'class' =&gt; 'dektrium\user\Module',
  </code></pre>
  
  <p>the error disappears.</p>