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I try to do a demo with google maps android v2 with very simple activity, just copy code from google page: https://developers.google.com/maps/documentation/android/start#adding_the_api_key_to_your_application for activity: package com.example.mapdemo; import android.app.Activity; import android.os.Bundle; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } } for layout: <?xml version="1.0" encoding="utf-8"?> <fragment xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/map" android:layout_width="match_parent" android:layout_height="match_parent" class="com.google.android.gms.maps.MapFragment"/> I had apply for a api key according to page and modify my androidmanifest.xml file, just like this: <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.wenhai.driverschool" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="15" /> <uses-permission android:name="android.permission.INTERNET" />  <permission android:name="com.example.mapdemo.permission.MAPS_RECEIVE" android:protectionLevel="signature" /> <uses-permission android:name="com.example.mapdemo.permission.MAPS_RECEIVE" /> <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <!-- Maps API needs

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