Question

我安装了最新版本的Xcode 9，现在已经重新安装了几次蒸汽，但是每当我尝试构建/运行/更新项目时，我仍然会收到以下错误。

这是我与

合作的内容

1.) Vapor Toolbox: 3.1.2

2.) Apple Swift version 4.0 (swiftlang-900.0.43 clang-900.0.22.8)
    Target: x86_64-apple-macosx10.9

3.) Xcode 9.0
    Build version 9M136h

Error: Could not generate Xcode project: error: manifest parse error(s):
/var/folder/60/n3ldjzgs5vsg06v17_1yy44h0000gn/T/TemporaryFile.VwrbJo.swift:41:5
: error: argument 'targets' must preceed argument 'dependencies'
    targets" [
    ^
error: The product dependency 'Vapor' was not found.
error: The product dependency 'FluentProvider' was not found.
error: The product dependency 'Testing' was not found.

这是我的Package.swift文件。看看我原来的错误，我确实尝试切换＆＃39;目标＆＃39;和＆＃39;依赖＆＃39;它们出现在文件中的顺序。这并没有解决任何问题并产生以下错误消息：error: argument 'dependencies' must precede argument 'targets'

Package.swift

let package = Package(
    name: "test",
    products: [
        .library(name: "App", targets: ["App"]),
        .executable(name: "Run", targets: ["Run"])
    ],
    dependencies: [
        .package(url: "https://github.com/vapor/vapor.git", .upToNextMajor(from: "2.1.0")),
        .package(url: "https://github.com/vapor/fluent-provider.git", .upToNextMajor(from: "1.2.0")),
    ],
    targets: [
        .target(
            name: "App",
            dependencies: ["Vapor", "FluentProvider"],
            exclude: [
                    "Config",
                    "Public",
                    "Resources",
                    ]
        ),
        .target(name: "Run", dependencies: ["App"]),
        .testTarget(name: "AppTests", dependencies: ["App", "Testing"])
    ]
)

Answer 1

双重检查版本：＆＃34;最新版本＆＃34;将至少 Xcode 9.1 （9B55）和Apple Swift 4.0.2 （swiftlang-900.0.69.1 clang-900.0.38）
确认Packages.swift中的第一行是// swift-tools-version:4.0。 没有swift-tools-version行，Packages.swift可以作为swift-tools-version 3处理。* 会导致错误。

cd _PROJECT_PATH_
swift package tools-version
# if not 4.0.0, then …
swift package tools-version --set-current

示例 Package.swift 如下所示。有关其他信息，请参阅Swift Package Manager Manifest API Redesign和swift-package-manager Usage Documentation。

// swift-tools-version:4.0
// The swift-tools-version declares the minimum version of Swift
// required to build this package. 
// Syntax: '// swift-tools-version:<specifier>' on the 1st line

import PackageDescription

let package = Package(
    name: "test",
    products: [
        .library(name: "App", targets: ["App"]),
        .executable(name: "Run", targets: ["Run"])
    ],
    dependencies: [
        .package(url: "https://github.com/vapor/vapor.git", .upToNextMajor(from: "2.3.0")),
        .package(url: "https://github.com/vapor/fluent-provider.git", .upToNextMajor(from: "1.3.0")),
    ],
    targets: [
        .target(
            name: "App",
            dependencies: ["Vapor", "FluentProvider"],
            exclude: [
                    "Config",
                    "Public",
                    "Resources",
                    ]
        ),
        .target(name: "Run", dependencies: ["App"]),
        .testTarget(name: "AppTests", dependencies: ["App", "Testing"])
    ]
)

重新检查

cd _PROJECT_PATH_
swift package tools-version
# should be 4.0.0

vapor clean
vapor update
vapor --version

# Vapor Toolbox: 3.1.2
# Vapor Framework: 2.3.0

再次尝试构建。

StackOverflow here上发布了更多注释，用于使用Xcode 9和Swift 4和Vapor 2。

GitHub存储库Vapor Examples Lab有几个示例项目已迁移到Vapor 2和Swift 4。

Vapor项目没有使用Swift 4和Xcode 9构建/运行

1 个答案: