如何清除 xcassets 未分配子项的警告?

How do I clear a warning for xcassets unassigned children?

每次构建时我都会收到两个警告:

<Project name>
    Assets.xcassets
        The launch image set "BrandAsset" has 2 unassigned children.

<Project name>
    Images.xcassets
        The launch image set "BrandAsset" has 2 unassigned children.

不太确定该怎么做,因为我正在为 Launch Screen File.

分配一个现有的故事板

Launch Screen Source 下,我只看到一个显示 Use Asset Catalog 的按钮。

如何修复我的构建以清除这些警告?

只是 select 未分配的项目,然后删除: remove unassigned items

Assets.xcassets---> "Brand Assets",然后右击--->"Remove selected Items"