By "that same problem", are you referring to this?
java.lang.NullPointerException
at stencyl.sw.editors.game.mobile.MobilePage.save(MobilePage.java:1969)
at stencyl.sw.editors.game.mobile.MobilePage.<init>(MobilePage.java:220)
at stencyl.sw.editors.game.GameSettingsDialog.load(GameSettingsDialog.java:165)
at stencyl.sw.app.tasks.OpenGameTask$3.run(OpenGameTask.java:269)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:744)
at java.awt.EventQueue.access$400(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:697)
at java.awt.EventQueue$3.run(EventQueue.java:691)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:714)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
If so, I'd suggest making sure there's an xcode install at Applications/Xcode.app.