title: Error Building a Native App with Sencha 2.3 + PhoneGap
body: <p>I'm following a simple instructions from a video on Vimeo. I upgraded my app from Sencha Touch 2.2 to 2.3. Added PhoneGap support. And now trying to build the native app. It turned out not as easy. I need help with this one:</p>
  
  <pre><code>macbook-air:admin Me$ sencha app build -run nativeSencha Cmd v4.0.1.45
  [INF]
  [INF] init-plugin:
  [INF]
  [INF] cmd-root-plugin.init-properties:
  [INF]
  [INF] init-properties:
  [INF]
  [INF] init-sencha-command:
  [INF]
  [INF] init:
  [INF]
  [INF] app-build-impl:
  [INF]
  [INF] -before-init-local:
  [INF]
  [INF] -init-local:
  [INF]
  [INF] -after-init-local:
  [INF]
  [INF] init-local:
  [INF]
  [INF] find-cmd-in-path:
  [INF]
  [INF] find-cmd-in-environment:
  [INF]
  [INF] find-cmd-in-shell:
  [INF]
  [INF] init-cmd:
  [INF]      [echo] Using Sencha Cmd from /Users/Me/bin/Sencha/Cmd/4.0.1.45 for /Users/Me/App/public/Admin/build.xml
  [INF]
  [INF] -before-init:
  [INF]
  [INF] -init:
  [INF] Initializing Sencha Cmd ant environment
  [INF] Adding antlib taskdef for com/sencha/command/compass/ant/antlib.xml
  [INF]
  [INF] -after-init:
  [INF]
  [INF] -before-init-defaults:
  [INF]
  [INF] -init-defaults:
  [INF]
  [INF] -after-init-defaults:
  [INF]
  [INF] -init-compiler:
  [INF]
  [INF] init:
  [INF]
  [INF] -before-build:
  [INF]
  [INF] refresh:
  [INF]
  [INF] -before-refresh:
  [INF]
  [INF] -init:
  [INF]
  [INF] -init-compiler:
  [INF]
  [INF] -detect-app-build-properties:
  [INF] Loading app json manifest...
  [ERR]
  [ERR] BUILD FAILED
  [ERR] java.lang.NullPointerException
  [ERR]
  [ERR] Total time: 1 second
  [ERR] The following error occurred while executing this line:
  /Users/Me/App/public/Admin/.sencha/app/build-impl.xml:367: The following error occurred while executing this line:
  /Users/Me/App/public/Admin/.sencha/app/js-impl.xml:11: java.lang.NullPointerException
  macbook-air:admin Me$
  </code></pre>
  
  <p>I've uploaded these 2 files on <a href="https://www.dropbox.com/s/w1i7xy7pdjtxyc5/Archive.zip" rel="nofollow">Dropbox</a>. Also here's a debug output <a href="http://pastebin.com/T6ENe8xh" rel="nofollow">http://pastebin.com/T6ENe8xh</a> Please let me know if there's anything else needed in order to track the problem. Am I missing something? Any help would be appreciated.</p>
  
  <p>Thanks,</p>
  
  <p>P.S. I'm a total beginner when it comes to these stuff.</p>