2015-09-21 19:23:45,575 INFO [Thread-29] stencyl.sw.util.StreamGobbler: [neko] C:\Program Files (x86)\Stencyl\plaf\haxe\std/flash/_std/Xml.hx:28: lines 28-418 : Field nodeType has different type than in core type
2015-09-21 19:23:45,575 INFO [Thread-29] stencyl.sw.util.StreamGobbler: [neko] C:\Program Files (x86)\Stencyl\plaf\haxe\std/flash/_std/Xml.hx:28: lines 28-418 : XmlType should be XmlType
2015-09-21 19:23:45,576 INFO [Thread-29] stencyl.sw.util.StreamGobbler: [neko] C:\Program Files (x86)\Stencyl\plaf\haxe\std/flash/_std/Xml.hx:28: lines 28-418 : Field parent has different property access than core type
I think this happens when you install Stencyl over a previous build. Uninstall (completely remove) the old installation directory and install again.