title: Can't connect Nexus S to my Mac OS x Lion 10.7 for USB Debugging
body: <p>I tried to connect my Nexus S (Android version 2.3.5) to my macbook pro 10.7 (OSX Lion). However, the notification on android phone was just ON and OFF alternative. I tried this command on my terminal. </p>
  
  <pre><code>adb usb 
  &gt;&gt;error: device not found
  adb devices 
  &gt;&gt;List of devices attached 
  &gt;&gt;[ nothing here ] 
  </code></pre>
  
  <p>Please help me with this issue. Thank you!</p>