title: Error string types not allowed at android:configChanges in manifest file
body: <p>Here is my manifest file which shows error string types not allowed at android:configChanges please help me in rectification of the error.
  below is my manifest file.</p>
  
  <pre><code>    &lt;?xml version="1.0" encoding="utf-8"?&gt;
      &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.ifahja.banner"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk android:minSdkVersion="10"/&gt;
  
      &lt;application
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name" &gt;
          &lt;activity
              android:name=".MyBannerActivity"
              android:label="@string/app_name" &gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
  
                  &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
  
          &lt;activity android:name="com.google.ads.AdActivity"
                    android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/&gt;
  
  
      &lt;/application&gt;
  
      &lt;uses-permission android:name="android.permission.INTERNET"/&gt;
    &lt;uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/&gt;
  
  
  &lt;/manifest&gt;
  </code></pre>