android application error
<p>my xml code is:</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    &gt;
&lt;com.google.android.maps.MapView
                 android:id="@+id/mapView"

                 android:layout_width="fill_parent"
                 android:layout_height="fill_parent"
                 android:enable="true"
                 android:clickable="true"
                 android:apiKey="0THdCiXY7jaJ9Br1ZQahFE4Lu1xTv1hAiVJBvxQ"
                 /&gt;
&lt;/RelativeLayout&gt;
</code></pre>

<p>and manifest is:</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.google.haha"
      android:versionCode="1"
      android:versionName="1.0"&gt;
    &lt;uses-sdk android:minSdkVersion="8" /&gt;

    &lt;uses-permission android:name="android.permission.INTERNET"&gt;&lt;/uses-permission&gt;


    &lt;application android:icon="@drawable/icon" android:label="@string/app_name"&gt;
      &lt;uses-library android:name="com.google.android.maps"/&gt;  
        &lt;activity android:name=".NewActivity"
                  android:label="@string/app_name"&gt;
            &lt;intent-filter&gt;
                &lt;action android:name="android.intent.action.MAIN" /&gt;
                &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
            &lt;/intent-filter&gt;
        &lt;/activity&gt;

    &lt;/application&gt;
&lt;/manifest&gt;
</code></pre>

<p>And this is main code:</p>

<pre><code>package com.google.haha;

import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;

import android.app.Activity;
import android.os.Bundle;

public class NewActivity extends MapActivity {
    /** Called when the activity is first created. */

    MapController mControl;
    GeoPoint GeoP;
    MapView mapV;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

       mapV=(MapView)findViewById(R.id.mapView);
       mapV.displayZoomControls(true);
       mapV.setBuiltInZoomControls(true);
       double lat=21.00;
       double longi=79.00;
       GeoP=new GeoPoint((int)(lat*1E6),(int)(longi*1E6));

       mControl=mapV.getController();
       mControl.animateTo(GeoP);
       mControl.setZoom(12);


    }

    @Override
    protected boolean isRouteDisplayed() {
        // TODO Auto-generated method stub
        return false;
    }
}
</code></pre>

<p>Everything is fine but I am getting error an on line:</p>

<pre><code>mapV=(MapView)findViewById(R.id.mapView);
</code></pre>

<p>id field is not recognised.</p>
