title: android - adb more than one device/emulator
body: <p>I genymotion emulator and my phone connected , I want to run and debug my application over wifi , I found the instruction to do so but I get this error when I enter this code :</p>
  
  <pre><code>adb tcpip 5555
  </code></pre>
  
  <p>I get this error : 
  error: more than one device/emulator</p>
  
  <p>How can I make my device as default or something like that to solve this problem ? </p>