我想明白了。我添加了一个模块Map来指定我的ObjC头，它工作了

不确定这是否是正确的方法，因为include文件夹应该已经自动执行此操作。

所以刚刚有同样的问题。（我的5美分）这是5月Package.swift：

// swift-tools-version: 5.7
// The swift-tools-version declares the minimum version of Swift required to build this package.

import PackageDescription

let package = Package(
    name: "AlgorithmSDK",
    platforms: [
        .iOS(.v13)
    ],
    products: [
        // Products define the executables and libraries a package produces, and make them visible to other packages. , "AlgorithmSDKObjc"
        .library(
            name: "AlgorithmSDK",
            targets: ["AlgorithmSDK","AlgorithmSDKObjc" ]),
    ],
    dependencies: [
        // Dependencies declare other packages that this package depends on.
        // .package(url: /* package url */, from: "1.0.0"),
    ],
    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 this package depends on.
        .target(
            name: "AlgorithmSDK",
            dependencies: []),
        
        .testTarget(
            name: "AlgorithmSDKTests",
            dependencies: ["AlgorithmSDK"]),
        
        .target(
            name: "AlgorithmSDKObjc",
            dependencies: [],
            publicHeadersPath:"include"),//<----- This path is relative to the target! (and can be ignored)
        
    ]
)

其结构为：

根据文档，publicHeadersPath应该是publicHeadersPath:"include" OR忽略（看起来它是相对于目标而不是根的）。我不认为我们应该为这样一个简单的结构触及module.modulemap