Unity Assets Stores 导入 Windridge City 资源包报错：'PostProcessing' does not exist in the namespace

报错：

Assets\Windridge City Assets\Scripts\UIQuallityManager\UIQualityManager.cs(5,29): error CS0234: The type or namespace name 'PostProcessing' does not exist in the namespace 'UnityEngine.Rendering' (are you missing an assembly reference?)

原因：未安装插件 PostProcessing

安装方法：

附：

Stackoverflow解决方案

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