title: Ubuntu : ADB not responding. If you'd like to retry, then please manually kill "adb" and click 'Restart'
body: <p>I am using Ubuntu 14.04 LTS and just installed a fresh version of Android Studio, and written Hello World program, and now trying to run it, but everytime I am getting:</p>
  
  <pre><code>ADB not responding. If you'd like to retry, then please manually kill "adb" and click 'Restart'
  </code></pre>
  
  <p>I found many questions on SO, but none of them solution worked for me...</p>