尝试在我的机器上使用Xcode-beta(v9)测试Swift 4,并将包导入测试项目时遇到问题:
swift package init --type executable
Package.swift
并添加了2个项目试用:Package.swift
// swift-tools-version:4.0
// The swift-tools-version declares the minimum version of Swift required to build this package.
import PackageDescription
let package = Package(
name: "sampleproject",
dependencies: [
// Dependencies declare other packages that this package depends on.
// .package(url: /* package url */, from: "1.0.0"),
.package(url: "https://github.com/IBM-Swift/Kitura.git", from: "1.7.6"),
.package(url: "https://github.com/Alamofire/Alamofire.git", from: "4.5.0")
],
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: "sampleproject",
dependencies: []),
]
)
swift build && swift package generate-xcodeproj
No such module Kitura/Alamofire
错误消息swift build
会产生以下错误:编译Swift模块'investprosto'(1个来源) /Users/username/Projects/sampleproject/Sources/sampleproject/main.swift:1:8: 错误:没有这样的模块'Kitura'导入Kitura ^错误:终止(1):/ Applications / Xcode- beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift- build-tool -f /Users/username/Projects/sampleproject/.build/debug.yaml
依赖关系虚拟文件夹包含具有相同包名称的目录,但它们为空。但是,.build\checkouts
和.build\repositories
包含包文件夹和相应的文件。
我的系统配置中是否缺少某些内容?
答案 0 :(得分:50)
原来我还必须将依赖项包含在Package.swift的.target
中:
.target(named: "sampleproject", dependencies: ["Kitura", "Alamofire"])
再次构建项目。
答案 1 :(得分:0)
即使您需要将target
添加到Package.swift
中,有时还是不够的。我已解决此问题,方法是删除.build
目录和文件Package.resolved
,然后运行swift build
或从 Xcode 构建。生成命令未获取软件包,因为它已经在resolved
文件中,但是如果删除.build
目录,它将变得毫无意义。您可以通过检查 Xcode 中的Dependencies
目录来验证它,如果出现类似No such package/module