C库找不到SwiftPM框架

Question

我正在为现有的C库创建一个Swift包装器，使用。我认为我已经正确地构造了所有的东西，但是当我创建和构建一个Xcode项目时，我会遇到一个错误。我已经尝试了我能找到的一切，没有运气。正式的离开了我。

下面是指向处于当前状态的项目的链接：https://github.com/JKcompute/Camiitool/tree/stackpost

这是我的Package.swift

// swift-tools-version:5.3
import PackageDescription

let package = Package(
    name: "CamiitoolPackage",
    products: [
        .library(name: "Camiitool", targets: ["Camiitool"]),
        .library(name: "amiitoolSwift", targets: ["amiitoolSwift"]),
    ],
    dependencies: [
    ],
    targets: [
        .target(
            name: "amiitoolSwift",
            dependencies: [ 
               "Camiitool"
            ],
            path: "./Sources/amiitoolSwift"
        ),

        .target(
            name: "Camiitool",
            dependencies: [ 
                "mbedtls"
            ],
            path: "./Sources/Camiitool",
            exclude: [
                "mbedtls",
                "LICENSE"
            ],
            resources: [
                .copy("."),
            ]
        ),
        .target(
            name: "mbedtls",
            dependencies: [],
            path: "./Sources/Camiitool/mbedtls",
            exclude: [
                "./mbedtls/yotta",
                "./mbedtls/visualc",
                "LICENSE"
            ],
            resources: [
                .copy("."),
            ]
        ),  

        .testTarget(
            name: "amiitoolSwiftTests",
            dependencies: ["amiitoolSwift"]
        )
    ]
)

所以我这里有卡米托醇是C库的Amiitool阿米托醇依赖于米贝茨。因此，我有一个mbedtls的目标，Camiitool，然后我也有一个用于amiitoolSwift的目标，我计划使用我的快速API。

这是我来自amiitoolSwift目标的快速文件。注意:这是非常基本的现在，只是为了测试。

import Foundation
import Camiitool

public class Amii {
    var someString = "test"

    public init() {
        someString = "initialized"
    }
    
    public func printTest() {
        print(someString)
    }

     public func methodJustForTesting() {
        print(someString)

        let cString: UnsafePointer<CChar> = Camiitool.nfc3d_version_fork()

       print(String(cString: cString))
     }
}

问题是，当我构建的时候，我得到了一个没有找到Camiitool的框架错误。

> Ld /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Products/Debug/amiitoolSwift.framework/Versions/A/amiitoolSwift normal (in target 'amiitoolSwift' from project 'CamiitoolPackage')
cd /Users/ME/GIT/PERSONAL/Amiibo/backup-wip/Camiitool
/Applications/Xcode_12.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -target x86_64-apple-macos10.10 -dynamiclib -isysroot /Applications/Xcode_12.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -L/Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Products/Debug -F/Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Products/Debug -F/Applications/Xcode_12.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -filelist /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Intermediates.noindex/CamiitoolPackage.build/Debug/amiitoolSwift.build/Objects-normal/x86_64/amiitoolSwift.LinkFileList -install_name @rpath/amiitoolSwift.framework/Versions/A/amiitoolSwift -Xlinker -rpath -Xlinker /usr/lib/swift -Xlinker -rpath -Xlinker /Applications/Xcode_12.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/macosx -Xlinker -object_path_lto -Xlinker /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Intermediates.noindex/CamiitoolPackage.build/Debug/amiitoolSwift.build/Objects-normal/x86_64/amiitoolSwift_lto.o -Xlinker -export_dynamic -Xlinker -no_deduplicate -fobjc-link-runtime -L/Applications/Xcode_12.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/macosx -L/usr/lib/swift -Xlinker -add_ast_path -Xlinker /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Intermediates.noindex/CamiitoolPackage.build/Debug/amiitoolSwift.build/Objects-normal/x86_64/amiitoolSwift.swiftmodule -framework Camiitool -framework mbedtls -Xlinker -dependency_info -Xlinker /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Intermediates.noindex/CamiitoolPackage.build/Debug/amiitoolSwift.build/Objects-normal/x86_64/amiitoolSwift_dependency_info.dat -o /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Products/Debug/amiitoolSwift.framework/Versions/A/amiitoolSwift

ld:框架未找到Camiitool clang: error:链接器命令失败，退出代码1(使用-v查看调用)

我试图解决的任何问题似乎都会造成相同错误的不同版本。例如，"Module“，或者我已经找到Camiitool，但是我得到了方法调用(nfc3d_version_fork)上的错误，即该方法不存在。

最后一个注意:我的项目的当前状态是基于我发现的这个例子：https://github.com/RoaringBitmap/SwiftRoaring，这基本上是我正在做的事情，除了没有子模块。我已经拉了这个项目，我能够建立和运行它只是很好。我已经比较了项目之间的所有设置，我没有注意到任何不同。这让我终于在这里发帖了。

运行MacOS 10.15.7，Xcode 12.0

Answer 1

所以我想出了这个办法。

首先，我注意到尽管正在生成.framework文件，但它基本上是空的。这显然是不正确的，所以我开始了一个单独的项目，以确保我没有错过任何步骤。我能够得到另一个项目的工作，所以我回到了这个项目，并做了一些改变。

看起来这是我为5.3版安装的一个问题。我回到5.1，并得到错误的重复符号。有一次，我通过排除不需要的c文件清除了这些文件。我能让它在5.1上工作

为了回到5.1，我需要删除原始清单中的resources.copy参数。因此，当我回到5.3时，我收到了一堆关于未处理资源的警告：

warning: found 424 file(s) which are unhandled; explicitly declare them as resources or exclude from the target

我之前收到了这个警告，这就是我添加resource.copy(“”)的原因。首先。这次我决定采取一种不同的方法，排除所有不需要的东西，看看是否需要在我做完之后具体地包括任何东西。结果，我不需要包括任何资源，并排除了我所有的错误和警告。

这是我的最新名单。

// swift-tools-version:5.3
// The swift-tools-version declares the minimum version of Swift required to build this package.

import PackageDescription

let package = Package(
    name: "CamiitoolPackage",
    products: [
        // Products define the executables and libraries a package produces, and make them visible to other packages.
        .library(name: "Camiitool", targets: ["Camiitool"]),
        .library(name: "amiitoolSwift", targets: ["amiitoolSwift"]),
        .library(name: "amiitoolSwiftDynamic", type: .dynamic,  targets: ["amiitoolSwift"]),
    ],
    dependencies: [
    ],
    targets: [
        .target(
            name: "amiitoolSwift",
            dependencies: [ 
               "Camiitool"
            ],
            path: "./Sources/amiitoolSwift"
        ),
        .target(
            name: "Camiitool",
            dependencies: [ 
                "mbedtls"
            ],
            path: "./Sources/Camiitool",
            exclude: [
                "./mbedtls",
                "./mbedtls/yotta",
                "./mbedtls/visualc",
                "./LICENSE",
                "./amiitool.c",
                "./README.md",
                "./Makefile"
            ]
        ),
        .target(
            name: "mbedtls",
            dependencies: [],
            path: "./Sources/Camiitool/mbedtls",
            exclude: [
                "./yotta",
                "./visualc",
                "./LICENSE",
                "./programs",
                "./tests",
                "./scripts",
                "./include/CMakeLists.txt",
                "./DartConfiguration.tcl",
                "./doxygen",
                "./library/Makefile",
                "./apache-2.0.txt",
                "./Makefile",
                "./README.md",
                "./ChangeLog",
                "./CMakeLists.txt",
                "./circle.yml",
                "./configs/README.txt",
                "./library/CMakeLists.txt"
            ]
        ),  
        .testTarget(
            name: "amiitoolSwiftTests",
            dependencies: ["amiitoolSwift"]
        )
    ]
)

现在它构建，不生成警告或错误，并且我的.framework文件已经完成，就像预期的那样。我认为这里可能有一个错误，我没有得到一个更好的错误，因为xcode将显示我的Camiitool.framework构建成功。尽管很明显不是。

然后，我能够用下面的可执行包设置来测试我的包，这也是有效的。

// swift-tools-version:5.3
// The swift-tools-version declares the minimum version of Swift required to build this package.

import PackageDescription

let package = Package(
    name: "packageTester",

    dependencies: [
        // Dependencies declare other packages that this package depends on.
        .package(name: "CamiitoolPackage", path: "../Camiitool"),
    ],
    targets: [
        .target(
            name: "packageTester",
            dependencies: [
                .product(name: "amiitoolSwift", package: "CamiitoolPackage")
            ]
        ),
        .testTarget(
            name: "packageTesterTests",
            dependencies: ["packageTester"]),
    ]
)