title: AdMob ads not showing up at all
body: <p>So i downloaded the latest admob sdk. Followed all the instructions by importing it into the project, etc.</p>
  
  <p>Then i did the thing that allows ads in 2.3.3 also by changing project.properties target to android-13 and set min-sdk to 10.</p>
  
  <p>Also declared this in the manifest :</p>
  
  <pre><code>&lt;activity android:name="com.google.ads.AdActivity"
                         android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/&gt;
  </code></pre>
  
  <p>Declared the AdView in the XML like this :</p>
  
  <pre><code>&lt;com.google.ads.AdView android:id="@+id/adView"
                       android:layout_width="wrap_content"
                       android:layout_height="wrap_content"
                       ads:adUnitId="xxxxxx"    &lt;!--replaced xxxxxx with publisher id--&gt;
                       ads:adSize="BANNER"
                       ads:testDevices="xxxxx"  &lt;!--replaced xxxxx with device id--&gt;
                       ads:loadAdOnCreate="true"/&gt;
  </code></pre>
  
  <p>After all of this the ad simply doesnt show up!!
  In grapical layout it says class could not be instantiated</p>
  
  <p>Where have i gone wrong?</p>