Swift SPM 包最低 iOS 版本未传播

Question

我正在创建一个简单的库 Swift 包：

import PackageDescription

let package = Package(
    name: "dpo-sdk-spm",
    platforms: [
        .iOS(.v10),
    ],
    products: [
        // Products define the executables and libraries produced by a package, and make them visible to other packages.
        .library(
            name: "dpo-sdk-spm",
            targets: ["dpo-sdk-spm"]),
    ],
    dependencies: [
        // Dependencies declare other packages that this package depends on.
        // .package(url: /* package url */, from: "1.0.0"),
        .package(url: "https://github.com/Alamofire/Alamofire.git", .upToNextMajor(from: "5.2.0"))
    ],
    targets: [
        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
        // Targets can depend on other targets in this package, and on products in packages which this package depends on.
        .target(
            name: "dpo-sdk-spm",
            dependencies: ["Alamofire"]),
        .testTarget(
            name: "dpo-sdk-spmTests",
            dependencies: ["dpo-sdk-spm"]),
    ]
)

我特别没有创建项目文件，因为在源代码管理中使用该文件是一件痛苦的事情 - 并且不需要开发将在 iOS 应用程序中使用的库，该库将具有必要的构建设置等。我的库已创建使用swift package init --type library以下是结构：

我在节点 iOS V10 下指定platforms，然后将包推送到我的 git 存储库。我将我的 git 帐户添加到 Xcode，创建了一个 App 项目，通过 Xcode 11 的内置 SPM 添加了我的包，没有出现任何问题，但是尝试构建时我得到了：

Showing All Messages The package product 'Alamofire' requires minimum platform version 10.0 for the iOS platform, but this target supports 8.0

我确实在 Package.swift 中指定了平台和版本，为什么构建管道忽略此变量？