Vapor 4 葉 - 無法解決依賴關系

Question

在使用終端創建新的蒸汽項目后， vapor new someProjectName同時還添加了 fluent 和 postgres 作為我的數據庫......一切順利，但是，在手動添加葉子后，我得到了一個無法解決依賴錯誤的錯誤，這就是我的包.swift 文件：

// swift-tools-version:5.2
import PackageDescription

let package = Package(
    name: "someProjectName",
    platforms: [
       .macOS(.v10_15)
    ],
    dependencies: [
        // 💧 A server-side Swift web framework.
        .package(url: "https://github.com/vapor/vapor.git", from: "4.0.0"),
        .package(url: "https://github.com/vapor/fluent.git", from: "4.0.0"),
        .package(url: "https://github.com/vapor/fluent-postgres-driver.git", from: "2.0.0"),
        .package(url: "https://github.com/vapor/leaf.git", from: "3.0.0"),
    ],
    targets: [
        .target(
            name: "App",
            dependencies: [
                .product(name: "Fluent", package: "fluent"),
                .product(name: "FluentPostgresDriver", package: "fluent-postgres-driver"),
                .product(name: "Vapor", package: "vapor"),
                .product(name: "Leaf", package: "leaf")
            ],
            swiftSettings: [
                // Enable better optimizations when building in Release configuration. Despite the use of
                // the `.unsafeFlags` construct required by SwiftPM, this flag is recommended for Release
                // builds. See <https://github.com/swift-server/guides#building-for-production> for details.
                .unsafeFlags(["-cross-module-optimization"], .when(configuration: .release))
            ]
        ),
        .target(name: "Run", dependencies: [.target(name: "App")]),
        .testTarget(name: "AppTests", dependencies: [
            .target(name: "App"),
            .product(name: "XCTVapor", package: "vapor"),
        ])
    ]
)

一定是我添加了葉子依賴錯誤，並且在查看了蒸氣的文檔后，他們也沒有更新他們的文檔……如果您知道這個問題的答案，請告訴我。 謝謝！

Answer 1

Leaf 仍在 RC 中，這就是為什么您無法找到有關它的任何信息。

將版本設置為4.0.0-rc ，它應該可以工作