ObjectDisposedException: Cannot access a disposed object.
Object name: 'easyar.ImageTracker'.
easyar.RefBase.get_cdata () (at Assets/EasyAR/Scripts/csapi.cs:179)
easyar.ImageTracker.unloadTarget (easyar.Target target, easyar.CallbackScheduler callbackScheduler, System.Action`2[T1,T2] callback) (at Assets/EasyAR/Scripts/csapi.cs:4818)
easyar.ImageTrackerFrameFilter.UnloadImageTarget (easyar.ImageTargetController controller, System.Action`2[T1,T2] callback) (at Assets/EasyAR/Scripts/ImageTrackerFrameFilter.cs:250)
easyar.ImageTargetController.UpdateTargetInTracker () (at Assets/EasyAR/Scripts/ImageTargetController.cs:334)
easyar.ImageTargetController.OnDestroy () (at Assets/EasyAR/Scripts/ImageTargetController.cs:206)