title: How to upgrade Android Phonegap 2.7.0 to 2.8.1
body: <p>In the past, upgrading phonegap consisted of creating a new project and copying various files. Now the instructions just say "Run bin/update with the project path listed in the Cordova Source directory." OK, how do I do this?</p>
  
  <p>I've tried this:</p>
  
  <pre><code>cd /path/to/phonegap-2.8.1/lib/android/bin 
  ./update /path/to/MyProject
  </code></pre>
  
  <p>It gets this error</p>
  
  <pre><code>mkdir: /path/to/MyProject/cordova: File exists
  An unexpected error occurred: mkdir "$PROJECT_PATH"/cordova exited with 1
  </code></pre>