title: Cannot run Android application on emulator/device - activity doesn't exist?
body: <p>When trying to run my application on the emulator I get an error from the activitymanager:</p>
  
  <pre><code>ActivityManager: Error type 3
  </code></pre>
  
  <p>My activity exists, is listed in the manifest (in fact, its the MAIN launcher activity).</p>
  
  <p>Anyone know what this error means?</p>