 <p>Apparently, folders named <code>_pre_production</code> are not added to the <code>APK</code>.</p> <p>I cannot take credit for this. Here is where I found the answer:</p> <p><a href="http://stackoverflow.com/questions/4789187/ignoring-files-from-android-apk">Ignoring files from Android APK</a></p> <p>I'm duplicating the answer here in case someone comes by.</p>