title: No resource identifier found for attribute 'roundIcon' in package 'android'
body: <p>I'm trying to compile my Project,but in there is some error</p>
  
  <p>Android manifest.xml</p>
  
  <pre><code> &lt;application
      android:allowBackup="true"
      android:icon="@mipmap/ic_launcher"
      android:label="@string/app_name"
      android:roundIcon="@mipmap/ic_launcher"
      android:supportsRtl="true"
      android:theme="@style/AppTheme"&gt;
  </code></pre>
  
  <p>I already try to rebuild project or sync with gradle but it's not working for me.</p>
  
  <p>my dependencies</p>
  
  <pre><code>compile 'com.android.support:appcompat-v7:23.0.0'
  compile 'com.android.support:design:23.0.0'
  compile 'com.android.support.constraint:constraint-layout:1.0.2'
  testCompile 'junit:junit:4.12'
  compile project(':circleimageview-2.0.0-sources')
  </code></pre>
  
  <p>How to fix this error? I'm newbie to Android Studio.</p>