android - Not seeing maps extending from MapActivity -

• when upload apk device, can't see maps.
• i've tried fragmentactivity , can see maps without problem, in case using mapactivity don't.
• the google maps android api v2 service on. idea? in advance!

code:

package com.avargas.mapas2;  import android.os.bundle; import android.view.menu; import com.avargas.mapas2.r;  import com.google.android.maps.mapactivity; import com.google.android.maps.mapview;  public class mainactivity extends mapactivity {      private mapview mapa;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);          mapa = (mapview) this.findviewbyid(r.id.mapview);         mapa.setbuiltinzoomcontrols(true);         mapa.settraffic(true);     }      @override     public boolean oncreateoptionsmenu(menu menu) {         // inflate menu; adds items action bar if present.         getmenuinflater().inflate(r.menu.main, menu);         return true;     }      @override     protected boolean isroutedisplayed() {         // todo auto-generated method stub         return false;     }  } 

activity 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" >      <com.google.android.maps.mapview         android:id="@+id/mapview"         android:layout_width="fill_parent"         android:layout_height="fill_parent"         android:clickable="true"         android:apikey="aizasyckyno20zr0rntkf-o7g-i0e54sisu1w5s"/>  </relativelayout> 

manifest:

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.avargas.mapas2"     android:versioncode="1"     android:versionname="1.0" >      <uses-feature     android:glesversion="0x00020000"     android:required="true"/>      <uses-sdk         android:minsdkversion="8"         android:targetsdkversion="17" />         <permission         android:name="com.avargas.mapas2.permission.maps_receive"         android:protectionlevel="signature" />      <uses-permission android:name="android.permission.internet"/>      <uses-permission android:name="com.avargas.mapas2.permission.maps_receive" />     <uses-permission android:name="android.permission.internet" />     <uses-permission android:name="android.permission.write_external_storage" />     <uses-permission android:name="android.permission.access_coarse_location" />     <uses-permission android:name="android.permission.access_fine_location" />     <uses-permission android:name="com.google.android.providers.gsf.permission.read_gservices" />        <uses-permission android:name="android.permission.access_network_state" />      <application         android:allowbackup="true"         android:icon="@drawable/ic_launcher"         android:label="@string/app_name"         android:theme="@style/apptheme" >         <uses-library android:name="com.google.android.maps" />         <activity             android:name="com.avargas.mapas2.mainactivity"             android:label="@string/app_name" >             <intent-filter>                 <action android:name="android.intent.action.main" />                  <category android:name="android.intent.category.launcher" />             </intent-filter>         </activity>          <meta-data         android:name="com.google.android.maps.v2.api_key"         android:value="aizasyckyno20zr0rntkf-o7g-i0e54sisu1w5s"/>     </application>  </manifest> 

api:

api key:     aizasyckyno20zr0rntkf-o7g-i0e54sisu1w5s android apps:    8f:aa:26:71:bc:77:61:a3:34:1c:55:dc:46:ae:bd:35:97:50:a5:22;com.avargas.mapas2 activated on:   apr 19, 2013 2:58 pm activated by: