How to create a correct assembly file for unity's dotween plugin

Assets\Scripts\HotFix\GameCore\Anim_Controller\AnimController_Intensify_Make.cs(136,17): error CS1929: ‘Image’ does not contain a definition for ‘DOColor’ and the best extension method overload ‘ShortcutExtensions.DOColor(Camera, Color, float)’ requires a receiver of type ‘Camera’.

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