title: Android Maps V2 App Crashing
body: <p>I have made an app that uses Google Android Maps API V2 and I have followed every step in the guide provided by Google but it doesn't work unfortunely and it crashes every time I try to start it up. So I'm wondering what is the problem?</p>
  
  <p><strong>MainActivity.java</strong></p>
  
  <pre><code>package com.android.maptest;
  
  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.activity_main);
      }
  }
  </code></pre>
  
  <p><strong>activity_main.xml</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;fragment xmlns:android="http://schemas.android.com/apk/res/android"
            android:id="@+id/map"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:name="com.google.android.gms.maps.MapFragment"/&gt;
  </code></pre>
  
  <p><strong>Maptest Manifest.xml</strong></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.android.maptest"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk
          android:minSdkVersion="16"
          android:targetSdkVersion="16" /&gt;
      &lt;permission
          android:name="com.android.maptest.permission.MAPS_RECEIVE"
          android:protectionLevel="signature" /&gt;
  
      &lt;uses-feature
          android:glEsVersion="0x00020000"
          android:required="true" /&gt;
  
      &lt;uses-permission android:name="com.android.maptest.permission.MAPS_RECEIVE" /&gt;
      &lt;uses-permission android:name="android.permission.INTERNET" /&gt;
      &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /&gt;
      &lt;uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" /&gt;
      &lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /&gt;
      &lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /&gt;
  
  
      &lt;application
          android:allowBackup="true"
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme" 
          android:debuggable="true" &gt;
          &lt;activity
              android:name="com.android.maptest.MainActivity"
              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;meta-data
              android:name="com.google.android.maps.v2.API_KEY"
              android:value="api_key" /&gt;
      &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p><strong>Logcat</strong></p>
  
  <pre><code>03-12 09:46:13.150: D/AndroidRuntime(1547): Shutting down VM
  
  03-12 09:46:13.150: W/dalvikvm(1547): threadid=1: thread exiting with uncaught exception (group=0x410e22a0)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547): FATAL EXCEPTION: main
  
  03-12 09:46:13.155: E/AndroidRuntime(1547): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.maptest/com.android.maptest.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2100)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2125)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at 
  </code></pre>
  
  <p>android.app.ActivityThread.access$600(ActivityThread.java:140)</p>
  
  <pre><code>03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1227)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.os.Handler.dispatchMessage(Handler.java:99)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.os.Looper.loop(Looper.java:137)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.ActivityThread.main(ActivityThread.java:4898)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at java.lang.reflect.Method.invokeNative(Native Method)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at java.lang.reflect.Method.invoke(Method.java:511)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at dalvik.system.NativeStart.main(Native Method)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.view.LayoutInflater.inflate(LayoutInflater.java:466)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:308)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.Activity.setContentView(Activity.java:1924)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at com.android.maptest.MainActivity.onCreate(MainActivity.java:11)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.Activity.performCreate(Activity.java:5206)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1083)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2064)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     ... 11 more
  
  03-12 09:46:13.155: E/AndroidRuntime(1547): Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.MapFragment: make sure class name exists, is public, and has an empty constructor that is public
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.Fragment.instantiate(Fragment.java:584)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.Fragment.instantiate(Fragment.java:552)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.Activity.onCreateView(Activity.java:4849)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     ... 20 more
  
  03-12 09:46:13.155: E/AndroidRuntime(1547): Caused by: java.lang.ClassNotFoundException: com.google.android.gms.maps.MapFragment
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     at android.app.Fragment.instantiate(Fragment.java:574)
  
  03-12 09:46:13.155: E/AndroidRuntime(1547):     ... 23 more
  
  03-12 09:51:21.560: I/Process(1547): Sending signal. PID: 1547 SIG: 9
  </code></pre>