com.admob.android.ads.AdView unbound prefix?

Question

I tried to include admob to an Android app in Eclipse. But I get an error in the layout.xml. Eclipse tells me that com.admot.android.ads.AdView is an unbound prefix. I have the admob library included in the build path, following the pdf instruction. But it still does not seem to find the AdView class. But why?

Here is the layout producing the error:

<?xml version="1.0" encoding="utf-8"?>  <LinearLayout      xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res/renegrothmann.kalah"     android:layout_width="wrap_content" android:layout_height="wrap_content"     >              <renegrothmann.kalah.GameView                 android:id="@+id/gameView" android:layout_width="fill_parent"                 android:layout_height="fill_parent"                 android:layout_margin="2px"                 />              <com.admob.android.ads.AdView                 android:id="@+id/ad"                 android:layout_width="fill_parent"                 android:layout_height="wrap_content"                 myapp:backgroundColor="#000000"                 myapp:primaryTextColor="#FFFFFF"                 myapp:secondaryTextColor="#CCCCCC"                 />  </LinearLayout> 

Answer 1

I had the same error wit this layout

<RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:id="@+id/topLayout" >                <!-- Ad Placeholder -->     <com.google.ads.AdView               android:id="@+id/adView"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         ads:adUnitId="a14df07c16f171a"         ads:adSize="BANNER"         ads:loadAdOnCreate="true"     />  </RelativeLayout> 

Then I made it:

<RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:id="@+id/topLayout" >                <!-- Ad Placeholder -->     <com.google.ads.AdView               android:id="@+id/adView"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         ads:adUnitId="a14df07c16f171a"         ads:adSize="BANNER"         ads:loadAdOnCreate="true"     />  </RelativeLayout> 

Notice the second xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads" in my RelativeLayout in the second example?
In fact if you remove the android namespace declaration xmlns:android="http://schemas.android.com/apk/res/android" it will start moaning about all the android components too.