title: Sencha cmd build native fails after upgrading to version 5
body: <p>I had a sencha touch application for which I packaged it to run natively on mobile, I followed all the steps mentioned in sencha docs in <a href="http://docs.sencha.com/touch/2.3.1/#!/guide/native_packaging" rel="nofollow">Native Packaging for Mobile Devices</a> and in <a href="http://docs.sencha.com/touch/2.3.1/#!/guide/native_provisioning" rel="nofollow">Packaging Native iOS Applications</a>, I built the application using the command <code>sencha app build native</code> using <code>sencha cmd version 4</code> and completed the provisioning and got the certificate and I copied the application on my iPhone and everything was fine, now there's an update in the application to be made and I have upgraded sencha cmd to version 5, now when I run the build native command I get the following error:</p>
  
  <pre><code>BUILD FAILED
  
  [ERR] java.lang.UnsupportedOperationException: STBuild is no longer supported in Cmd 5. Please use the cordova or phonegap packager for device packaging.
  
  [ERR]   at org.apac
  
  [ERR] he.tools.ant.TaskAdapter.execute(TaskAdapter.java:154)
  </code></pre>
  
  <p>What does it mean that STBuild is no longer supported? I checked the <a href="http://docs.sencha.com/extjs/5.0.0/cmd/intro_to_cmd.html" rel="nofollow">docs of sencha cmd 5</a> and here is what's written about packaging:</p>
  
  <blockquote>
    <p>Native Packaging: Native packaging to convert a Sencha Touch application into a first-class, mobile application that has access to device functionality and can be distributed in App Stores.</p>
  </blockquote>
  
  <p>I can't imagine that native build was supported in version 4 and now not supported in version 5.</p>
  
  <p>I am running this on Mac OS X 10.9.3.</p>