CocoonJS support is hidden by default
Please note that as of r179, CocoonJS support is deprecated. It has not been removed, it simply means it is hidden by default. We recommend exporting via PhoneGap for iOS or Crosswalk for Android for better feature support and compatibility. However if you still want to keep using CocoonJS, simply right-click and select 'Show deprecated exporters' in the Export Project dialog (and right-click and select 'Show deprecated objects' in the Insert Object dialog to access the CocoonJS plugin).