第一个是Assets\EasyAR\Scripts\ImageTargetController.cs(90,9): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'
第二个是Assets\EasyAR\Scripts\SurfaceTrackerBehaviour.cs(22,31): warning CS0649: Field 'SurfaceTrackerBehaviour.TouchInfo.phase' is never assigned to, and will always have its default value
请官方帮助解答一下具体解决方案