unity/u3d报错: SerializedObject target has been destroyed. UnityEngine.StackTraceUtility:ExtractStackTrace ()

问题：

好像是shader改名后u3d突然报错：SerializedObject target has been destroyed. UnityEngine.StackTraceUtility:ExtractStackTrace ()

解决：

重启编辑器后报错不再出现，盲猜改完名字缓存出错了，重启缓存重新生成了。