title: AdMob "Not enough space to show ad" error
body: <p>I'm new to Android.
  I added AdMob in my android app by making the following changes in main.xml:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;TabHost xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@android:id/tabhost"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent" &gt;
  
      &lt;LinearLayout
          xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
          android:layout_width="fill_parent"
          android:layout_height="fill_parent"
          android:orientation="vertical" &gt;
          &lt;TabWidget
              android:id="@android:id/tabs"
              android:layout_width="fill_parent"
              android:layout_height="wrap_content" /&gt;
  
          &lt;FrameLayout
              android:id="@android:id/tabcontent"
              android:layout_width="fill_parent"
              android:layout_height="fill_parent" /&gt;
  
          &lt;com.google.ads.AdView
              xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
              android:id="@+id/adView"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              ads:adSize="BANNER"
              ads:adUnitId="XXXXXXXXX"
              ads:loadAdOnCreate="true" /&gt;
      &lt;/LinearLayout&gt;
  &lt;/TabHost&gt;
  </code></pre>
  
  <p>My project is successfully running with no error, but I'm not getting the ad.</p>
  
  <pre><code>WARN/Ads(3805): Not enough space to show ad! Wants: &lt;320, 50&gt;, Has: &lt;320, 0&gt;.
  </code></pre>