一応上記のエラーについて記載しておきます。
Assets/UtageForLive2D/Scripts/AdvGraphicObjectLive2D.cs(28,30): error CS0115: `Utage.AdvGraphicObjectLive2D.CurrentObject' is marked as an override but no suitable property found to override
Assets/UtageForLive2D/Scripts/AdvGraphicObjectLive2D.cs(38,26): error CS0115: `Utage.AdvGraphicObjectLive2D.OnInit()' is marked as an override but no suitable method found to override
Assets/UtageForLive2D/Scripts/AdvGraphicObjectLive2D.cs(44,33): error CS0246: The type or namespace name `GraphicInfoList' could not be found. Are you missing an assembly reference?
Assets/UtageForLive2D/Scripts/AdvGraphicObjectLive2D.cs(86,26): error CS0115: `Utage.AdvGraphicObjectLive2D.OnDrawArgCustom(Utage.AdvGraphicOperaitonArg)' is marked as an override but no suitable method found to override
Assets/UtageForLive2D/Scripts/AdvGraphicObjectLive2D.cs(150,26): error CS0115: `Utage.AdvGraphicObjectLive2D.OnFadeOut(float)' is marked as an override but no suitable method found to override
Assets/UtageForLive2D/Scripts/AdvGraphicObjectLive2D.cs(158,47): error CS0246: The type or namespace name `EffectColors' could not be found. Are you missing an assembly reference?
Assets/UtageForLive2D/Scripts/AdvGraphicObjectLive2D.cs(169,37): error CS0115: `Utage.AdvGraphicObjectLive2D.AddNewEventColliders(UnityEngine.GameObject, bool)' is marked as an override but no suitable method found to override
Assets/UtageForLive2D/Scripts/AdvGraphicObjectLive2D.cs(182,26): error CS0115: `Utage.AdvGraphicObjectLive2D.OnClick(UnityEngine.EventSystems.BaseEventData, Utage.StringGridRow, UnityEngine.Events.UnityAction<UnityEngine.EventSystems.BaseEventData>)' is marked as an override but no suitable method found to override
Assets/UtageForLive2D/Scripts/AdvGraphicObjectLive2D.cs(217,26): error CS0115: `Utage.AdvGraphicObjectLive2D.OnWrite(System.IO.BinaryWriter)' is marked as an override but no suitable method found to override
Assets/UtageForLive2D/Scripts/AdvGraphicObjectLive2D.cs(226,33): error CS0246: The type or namespace name `GraphicInfoList' could not be found. Are you missing an assembly reference?
Assets/UtageForLive2D/Scripts/AdvGraphicObjectLive2D.cs(242,41): error CS0246: The type or namespace name `GraphicInfoList' could not be found. Are you missing an assembly reference?
Assets/UtageForLive2D/Scripts/Live2DModelData.cs(99,28): error CS0246: The type or namespace name `GraphicInfoList' could not be found. Are you missing an assembly reference?
Assets/UtageForLive2D/Scripts/Live2DModelData.cs(116,21): error CS0246: The type or namespace name `GraphicInfoList' could not be found. Are you missing an assembly reference?
Assets/UtageForLive2D/Scripts/Live2DObject.cs(35,10): error CS0246: The type or namespace name `FadeInOut' could not be found. Are you missing an assembly reference?
Assets/UtageForLive2D/Scripts/Live2DObject.cs(36,3): error CS0246: The type or namespace name `FadeInOut' could not be found. Are you missing an assembly reference?
Assets/UtageForLive2D/Scripts/Live2DObject.cs(49,63): error CS0246: The type or namespace name `GraphicInfoList' could not be found. Are you missing an assembly reference?