title: Why couldn't I boot Android emulator with Android 6.0 configuration?
body: <p>I want to test my Android App on different Android API levels, but when I setup my AVD to Android 6.0(API level 23), I found it couldn't boot up, and the log always show the following errors:</p>
  
  <pre><code>08-14 16:39:26.311  1193  1193 F DEBUG   : 
  08-14 16:39:26.311  1193  1193 F DEBUG   : Tombstone written to: /data/tombstones/tombstone_04
  08-14 16:39:26.319  5369  5369 F DEBUG   : 
  08-14 16:39:26.319  5369  5369 F DEBUG   : Tombstone written to: /data/tombstones/tombstone_05
  08-14 16:39:26.319  5369  5369 E         : ptrace detach from 5455 failed: No such process
  08-14 16:39:26.319  5369  5369 E         : debuggerd committing suicide to free the zombie!
  08-14 16:39:26.323  1184  1184 I ServiceManager: service 'media.audio_flinger' died
  08-14 16:39:26.323  1184  1184 I ServiceManager: service 'media.player' died
  08-14 16:39:26.323  1184  1184 I ServiceManager: service 'media.resource_manager' died
  </code></pre>
  
  <p>Who could help me to fix this problem? </p>