Why can't Theme.Holo be resolved as a Theme? 
<p>I used <code>&lt;uses-sdk android:minSdkVersion="9" android:maxSdkVersion="15" /&gt;</code> but Theme.Holo doesnot work.</p>

<p>Android Manifest:</p>

<pre><code>&lt;activity android:name=".Login" android:label="@string/app_name"  android:theme="@android:style/Theme.Holo.NoTitleBar.Fullscreen" android:screenOrientation="portrait"&gt;
</code></pre>

<p>Screenshot:</p>

<p><img src="http://i.stack.imgur.com/8FljO.jpg" alt="Screenshot"></p>
