title: how to find aapt version
body: <p>I am trying to build an android application from the command line (the one described at <a href="https://stackoverflow.com/questions/11888398/minimal-source-files-to-create-android-app-using-eclipse-adt">&quot;Minimal&quot; source files to create Android app using Eclipse + ADT</a> ) and aapt is failing with some errors. How do I discover what version of aapt I am running?<br>
  Is there only one version?<br>
  Here is the command line I am running:<br>
  aapt package -M AndroidManifest.xml -S res -J gen<br>
  The output does not show the version number, nor does there appear to be any flag to set to show the version.<br></p>