Swift 包管理器 - 无法解析清单

Question

我正在尝试将 CocoaPod 迁移到 SPM。它应该非常简单，但由于某种原因，我不断收到错误“无法解析清单文件”。

可以在这里找到带有库的存储库：https ://github.com/agcoesbenr/RBSManager/tree/swift-package-manager

// swift-tools-version:5.1
import PackageDescription

let package = Package(
    name: "RBSManager",
    platforms: [
        .iOS(.v10),
    ],
    products: [
        .library(
            name: "RBSManager",
            targets: ["RBSManager"])
    ],
    dependencies: [
        .package(url: "https://github.com/daltoniam/Starscream.git", from: "3.1.1"),
        .package(url: "https://github.com/tristanhimmelman/ObjectMapper.git", from: "4.2")
    ],
    targets: [
        .target(
            name: "RBSManager",
            dependencies: ["Starscream", "ObjectMapper"],
            path: "./RBSManager/Classes")
    ]
)

Answer 1

我不知道你从哪里得到的错误消息，但它不完整。在 Terminal.app 中，如果您这样做$> swift build，您将收到此错误：

$>swift build
/[...]/RBSManager-swift-package-manager: error: manifest parse error(s):
/[...]/RBSManager-swift-package-manager/Package.swift:21:39: error: expected ',' separator
            path: "RBSManager/Classes"
                                      ^
                                      ,
/Users/armel/Downloads/RBSManager-swift-package-manager/Package.swift:22:13: error: argument 'dependencies' must precede argument 'path'
            dependencies: []),

所以一个可能的解决办法是：

targets: [
    .target(
        name: "RBSManager",
        dependencies: [],
        path: "RBSManager",
        sources: ["Classes"])
]

然后，你会遇到另一个错误：

error: manifest parse error(s):
Invalid semantic version string '4.2'

4.2.0事实上ObjectMapper，它在repo中是这样的。

我没有完全检查文件是否正确添加到包中，但更多的是解释如何调试问题并修复它。sources/path我设置的值可能不正确，如果需要，我会让您调试该部分。