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Editorial Team
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Asked: 2026-06-18T04:55:55+00:00

all: I’m a new starter of android. Now I’m going to run an Android

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all:

I’m a new starter of android. Now I’m going to run an Android Maps V2 project. I followed step by step as described in https://docs.google.com/document/pub?id=19nQzvKP-CVLd7_VrpwnHfl-AE9fjbJySowONZZtNHzw, failed and tried many times, but i continually encounter the following :

02-03 01:48:48.783: E/AndroidRuntime(11547): FATAL EXCEPTION: main
02-03 01:48:48.783: E/AndroidRuntime(11547): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.googlemapdemo/com.example.googlemapdemo.MainActivity}: android.view.InflateException: Binary XML file line #7: Error inflating class fragment
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1968)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1993)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.ActivityThread.access$600(ActivityThread.java:127)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1159)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.os.Handler.dispatchMessage(Handler.java:99)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.os.Looper.loop(Looper.java:137)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.ActivityThread.main(ActivityThread.java:4507)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at java.lang.reflect.Method.invokeNative(Native Method)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at java.lang.reflect.Method.invoke(Method.java:511)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at dalvik.system.NativeStart.main(Native Method)
02-03 01:48:48.783: E/AndroidRuntime(11547): Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class fragment
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:697)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:271)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.Activity.setContentView(Activity.java:1835)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at com.example.googlemapdemo.MainActivity.onCreate(MainActivity.java:18)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.Activity.performCreate(Activity.java:4465)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1052)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1932)
02-03 01:48:48.783: E/AndroidRuntime(11547):    ... 11 more
02-03 01:48:48.783: E/AndroidRuntime(11547): Caused by: java.lang.RuntimeException: API key not found.  Check that <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="your API key"/> is in the <application> element of AndroidManifest.xml
02-03 01:48:48.783: E/AndroidRuntime(11547):    at maps.y.z.a(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at maps.y.z.a(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at maps.y.z.a(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at maps.y.ae.a(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at maps.y.bu.a(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at maps.y.p.onCreateView(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at com.google.android.gms.maps.internal.IMapFragmentDelegate$Stub.onTransact(IMapFragmentDelegate.java:107)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.os.Binder.transact(Binder.java:297)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at com.google.android.gms.maps.internal.IMapFragmentDelegate$a$a.onCreateView(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at com.google.android.gms.maps.MapFragment$b.onCreateView(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at com.google.android.gms.internal.d$4.a(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at com.google.android.gms.internal.d.a(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at com.google.android.gms.internal.d.onCreateView(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at com.google.android.gms.maps.MapFragment.onCreateView(Unknown Source)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:806)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1010)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.FragmentManagerImpl.addFragment(FragmentManager.java:1108)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.app.Activity.onCreateView(Activity.java:4243)
02-03 01:48:48.783: E/AndroidRuntime(11547):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:673)
02-03 01:48:48.783: E/AndroidRuntime(11547):    ... 21 more

Here is my project, it is very basic and short. Perhaps there’s a very common mistake, but if you can point to me, I would be very grateful!

activity_main.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <fragment
        android:id="@+id/map"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        class="com.google.android.gms.maps.MapFragment" />

</RelativeLayout>

AndroidMenifest.xml:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.googlemapdemo"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />
    <permission
        android:name="com.example.googlemapdemo.permission.MAPS_RECEIVE"
        android:protectionLevel="signature"/>
    <uses-permission android:name="com.example.googlemapdemo.permission.MAPS_RECEIVE"/>
    <!-- Copied from Google Maps Library/AndroidManifest.xml. -->
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
    <!-- External storage for caching. -->
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <!-- My Location -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <!-- Maps API needs OpenGL ES 2.0. -->
    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true"/>
    <!-- End of copy. -->

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.googlemapdemo.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <meta-data
               android:name="com.google.android.maps.v2.API_KEY"
               android:value="xxxx"/>
        </activity>
    </application>

</manifest>

MainActivity.java:

package com.example.googlemapdemo;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.SupportMapFragment;

import android.os.Bundle;
import android.app.Activity;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;


public  MainActivity extends Activity  {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mGMap = ((MapFragment)  getFragmentManager().findFragmentById(R.id.map))
               .getMap();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
    private GoogleMap mGMap;
}
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1 Answer

  1. Editorial Team

    You are attempting to use SupportMapFragment in something other than a FragmentActivity. This will not work. Either convert MainActivity to extend FragmentActivity, or use MapFragment instead of SupportMapFragment. The latter approach will limit your app to API Level 11 or higher.

    In addition, as the stack trace tells you, you do not have the <meta-data> element in your manifest with your API key.

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