Android: MapView causing "Source not found."

I have :

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

As a child of < manifest >.

I have :

    <uses-library android:name="com.google.android.maps" />

As a child of < application >.

myview.xml contains:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@color/secondaryColor"
    >
    <com.google.android.maps.MapView
        android:layout_width="260dp"
        android:layout_height="100dp"
        android:apiKey=OMMITTED
        android:id="@+id/mapView"/>
</RelativeLayout>

MyView.java:

public class MyView extends Activity
{
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.myview);
    }
}

When I run the program, I get a "source not found" error with nothing in the console or the logcat. When I take out the entire com.google.android.maps.MapView tag, the program 开发者_JAVA百科runs fine. I'm running the simulator with target "Google APIs API Level 7". My project build target is "Google APIs" for API Level 7. I'm stuck at this point!

---

Change your Activity to MapActivity.

and also give the MapView tag android:id="@+id/mapview" in XML. also override the method

@Override
protected boolean isRouteDisplayed() {
    return false;
}

---

You need this : MyView extends MapActivity and on onCreate method mapView = (MapView) findViewById(R.id.mapView);