Почему unity выдает ошибку?

ошибка Assets\Scripts\TerrariaGenerator.cs(15,39): error CS1061: 'TilemapRender' does not contain a definition for 'render' and no accessible extension method 'render' accepting a first argument of type 'TilemapRender' could be found (are you missing a using directive or an assembly reference?)

GetComponent<TilemapRender>().Render(tileMap);