title: App only works in emulator
body: <p>Good afternoon, I am developing a simple webapp for Android, it works perfectly in Eclipse emulator, but when I export the. Apk I can not install on the phone.</p>
  
  <p>Appears "unsupported format".</p>
  
  <p>The following code:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
      &lt;WebView  xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/webview"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
  /&gt;
  
  package com.example.provincia;
  
  import android.os.Bundle;
  import android.app.Activity;
  import android.view.Menu;
  import android.webkit.WebSettings;
  import android.webkit.WebView;
  import android.webkit.WebViewClient;
  
  public class MainActivity extends Activity {
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
  
      WebView myWebView = (WebView) findViewById(R.id.webview);
      myWebView.loadUrl("http://www.*****.com.br/sites/webapp/index.php");
  
  
      WebSettings webSettings = myWebView.getSettings();
      webSettings.setJavaScriptEnabled(true);
      myWebView.getSettings().setDomStorageEnabled(true); 
  
      myWebView.setWebViewClient(new WebViewClient());
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.main, menu);
      return true;
  }
  
  }
  </code></pre>
  
  <p>Logcat:</p>
  
  <pre><code>12-05 18:19:30.092: E/Zygote(32): setreuid() failed. errno: 2
  12-05 18:19:45.793: E/Zygote(32): setreuid() failed. errno: 17
  12-05 18:19:47.603: E/BatteryService(58): usbOnlinePath not found
  12-05 18:19:47.603: E/BatteryService(58): batteryVoltagePath not found
  12-05 18:19:47.603: E/BatteryService(58): batteryTemperaturePath not found
  12-05 18:19:47.634: E/SurfaceFlinger(58): Couldn't open /sys/power/wait_for_fb_sleep or               /sys/power/wait_for_fb_wake
  12-05 18:20:01.732: E/EventHub(58): could not get driver version for /dev/input/mouse0,      Not a typewriter
  12-05 18:20:01.732: E/EventHub(58): could not get driver version for /dev/input/mice, Not a typewriter
  12-05 18:20:02.067: E/System(58): Failure starting core service
  12-05 18:20:02.067: E/System(58): java.lang.SecurityException
  12-05 18:20:02.067: E/System(58):   at android.os.BinderProxy.transact(Native Method)
  12-05 18:20:02.067: E/System(58):   at     android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146)
  12-05 18:20:02.067: E/System(58):   at android.os.ServiceManager.addService(ServiceManager.java:72)
  12-05 18:20:02.067: E/System(58):   at     com.android.server.ServerThread.run(SystemServer.java:184)
  12-05 18:20:03.542: E/SoundPool(58): error loading /system/media/audio/ui/Effect_Tick.ogg
  12-05 18:20:03.573: E/SoundPool(58): error loading /system/media/audio/ui/KeypressStandard.ogg
  12-05 18:20:03.573: E/SoundPool(58): error loading /system/media/audio/ui/KeypressSpacebar.ogg
  12-05 18:20:03.573: E/SoundPool(58): error loading /system/media/audio/ui/KeypressDelete.ogg
  12-05 18:20:03.594: E/SoundPool(58): error loading /system/media/audio/ui/KeypressReturn.ogg
  12-05 18:20:07.282: E/ThrottleService(58): Could not open GPS configuration file /etc/gps.conf
  12-05 18:20:08.246: E/logwrapper(140): executing /system/bin/tc failed: No such file or directory
  12-05 18:20:08.342: E/logwrapper(142): executing /system/bin/tc failed: No such file or directory
  12-05 18:20:08.412: E/logwrapper(143): executing /system/bin/tc failed: No such file or directory
  12-05 18:20:26.059: E/HierarchicalStateMachine(58): TetherMaster - unhandledMessage: msg.what=3
  </code></pre>