title: Android device using "Shark for Root" to capture packets but receive "Empty file opened" error
body: <p>I'm using the "Shark for Root" to capture packets in my Android device. Here is the app in play store: <a href="https://play.google.com/store/apps/details?id=lv.n3o.shark" rel="nofollow">https://play.google.com/store/apps/details?id=lv.n3o.shark</a></p>
  
  <p>I just use the default parameters : <code>-vv -s 0</code> , and as the log shown below it really start to capture. But when I stop capture and open the capture file with the application named "Shark Reader", it exit with a toast that says "empty file opened" though the file isn't empty.</p>
  
  <p>I can't find out what's wrong with it. Can some one help me or give me some advice to capture the packets.</p>
  
  <p>Thanks.</p>