title: Error in configuring network security xml in android
body: <p>In the <a href="https://developer.android.com/training/articles/security-config.html" rel="noreferrer">android network security docs</a> , it says to create a network_security_config.xml file in res/xml folder.</p>
  
  <p>In order to make an entry in manifest file, it says to make an entry in this way</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest ... &gt;
      &lt;application android:networkSecurityConfig="@xml/network_security_config"
                      ... &gt;
          ...
      &lt;/application&gt;
  &lt;/manifest&gt;
  </code></pre>
  
  <p>But I am getting the error <code>No resource identifier found for attribute 'networkSecurityConfig' in package 'android'</code></p>
  
  <p><strong>I also checked for the valid attributes in application tag ( <a href="https://developer.android.com/guide/topics/manifest/application-element.html" rel="noreferrer">android docs</a> ), there is no attribute as "networksecurityconfig"</strong></p>