Problem name app

ionic-v1
1

I have this config.xml, but when I run the ionic build android, app generates other name does not change the icon. I do not understand that this problem is generated, any ideas? I deleted the platform and I have reinstalled but nothing.

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <widget id="com.ionicframework.entel904334" version="3.4" android-versionCode="10" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0" xmlns:gap="http://phonegap.com/ns/1.0" xmlns:android="http://schemas.android.com/apk/res/android">
  <name>Prueba</name>
    <description>
         Lixsys
     </description>
  <author email="" href="">
</author>
   <content src="index.html"/>
   <access origin="*"/>
   <preference name="webviewbounce" value="false"/>
   <preference name="orientation" value="portrait"/>
   <preference name="UIWebViewBounce" value="false"/>
   <preference name="DisallowOverscroll" value="true"/>
   <preference name="BackupWebStorage" value="none"/>
   <preference name="SplashScreen" value="screen" /> 
   <preference name="SplashScreenDelay" value="5000" />
   <preference name="AutoHideSplashScreen" value="false" />
   <feature name="StatusBar">
      <param name="ios-package" value="CDVStatusBar" onload="true"/>
   </feature>
  <feature name="SplashScreen">
    <param name="android-package" value="org.apache.cordova.splashscreen.SplashScreen" />
  </feature>
  <plugin name="InAppBrowser" value="org.apache.cordova.InAppBrowser" />
   <feature name="PushPlugin" >
       <param name="android-package" value="com.amazon.cordova.plugin.PushPlugin"/>
  </feature>
  <!--Plugin de notificaciones --> 
     <gap:plugin name="com.phonegap.plugins.pushplugin"/> 
     <access origin="*" />
     <gap:plugin name="de.appplant.cordova.plugin.background-mode" version="0.6.3" />
</widget>
2

or you can edit the platform app settings file to change app name.