Unity 导入MRTK，使用URP 升级材质，MRTK的材质还是洋红色

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ToggleBackground material was not upgraded. There’s no upgrader to convert Mixed Reality Toolkit/Standard shader to selected pipeline
UnityEditor.Rendering.Universal.UniversalRenderPipelineMaterialUpgrader:UpgradeProjectMaterials() (at

点击URP的升级材质并不能把MRTK的材质进行升级

选择最后一个，这个是MRTK自带的，点击把可以材质升级成URP