我在Unity上有2D项目（2017.1.3）
当gameObject visible为true时，会连续出现这样的错误
当我看到假的时候它就停止了
请帮助我，我该怎么办？
Invalid layer id. Please use the unique id of the layer (which is not the same as its index in the list).
UnityEngine.Renderer:set_sortingLayerID(Int32)
Anima2D.SpriteMeshInstance:OnWillRenderObject() (at Assets/Anima2D/Scripts/SpriteMeshInstance.cs:419)