add minSdkVersion because it used 4.0 s ActionBar

AndroidManifest.xml

@@ -20,6 +20,8 @@
     android:versionCode="1"
     android:versionName="0.1" >
 
+    <uses-sdk android:minSdkVersion="14" />
+
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
     <uses-permission android:name="android.permission.INTERNET" />