How to use dependencies in a Swift Package

Question

I created a new Package with Xcode and incorporated a dependency, however when I try to use it, I get an error.

How do I use the dependency in the Package sources? In a normal project, I can easily import and use AgileDB.

Here's the Package:


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

import PackageDescription

let package = Package(
    name: "DBCore",
    products: [
        // Products define the executables and libraries a package produces, and make them visible to other packages.
        .library(
            name: "DBCore",
            targets: ["DBCore"]),
    ],

    dependencies: [
          .package(url: "https://github.com/AaronBratcher/AgileDB", from: "6.4.0")
    ],

    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 this package depends on.

        .target(
            name: "DBCore",
            dependencies: []),
        .testTarget(
            name: "DBCoreTests",
            dependencies: ["DBCore"]),
    ]
)

Perhaps the AgileDB package as a dependency in the target? I tried copying that and it won't recognize it.

Inside AgileDB check file Package. That will have something like name: "X". Try using that in your import — Suyash Medhavi
– Suyash Medhavi, Commented Apr 24, 2022 at 18:15
@SuyashMedhavi The name is AgileDB and can be found here: github.com/AaronBratcher/AgileDB — Aaron Bratcher
– Aaron Bratcher, Commented Apr 24, 2022 at 21:54
I have added a detailed answer explaining how to add a Library. Please check if you have maybe missed a step here or all the required entries are present as outlined. — Suyash Medhavi
– Suyash Medhavi, Commented Apr 25, 2022 at 17:04

Aaron Bratcher · Accepted Answer · 2022-04-25 19:36:31Z

2

Found my answer.

In the target dependencies, need to include the package name as a string:

        // 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 this package depends on.

        .target(
            name: "DBCore",
            dependencies: [
                    "AgileDB"
                ]),

        .testTarget(
            name: "DBCoreTests",
            dependencies: ["DBCore"]),
    ]

answered Apr 25, 2022 at 19:36

Aaron Bratcher

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Comments

cheersmate · Accepted Answer · 2024-07-25 07:54:00Z

0

In my case I had to specify both package and product. E.g. for swift-math-parser, the Package.swift states:

let package = Package(
  name: "swift-math-parser",
  // ...
  products: [
    .library(
      name: "MathParser",
      targets: ["MathParser"]
    )
  ],
  // ...

So I had to specify the dependency in my own Package.swift as:

let package = Package(
    // ...
    targets: [
        .target(
            name: "MyPackage",
            dependencies: [
                .product(name: "MathParser", package: "swift-math-parser"),
            ]
        ),
    // ...

answered Jul 25, 2024 at 7:54

cheersmate

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Comments

Suyash Medhavi · Accepted Answer · 2022-04-25 17:03:04Z

-3

Step by step guide:

Open project settings
Click on "Package Dependencies"
Click on the "Plus" icon and add your package in the window that opens
Your added package should appear in the list

Package should also appear under "Package Dependencies" in the left bar

Click on your target
Navigate to "General" tab and "Frameworks and Libraries" section under that
Click on "Plus" icon and select/add your package in the window that opens
Your added package should appear in the list

Package should automatically be added in "Build Phases" tab under "Link Binary with Libraries" section. If it isn’t add it by clicking the "Plus" icon

At this point you should be able to import and use the package in any of the files under this target.

answered Apr 25, 2022 at 17:03

Suyash Medhavi

1,2388 silver badges18 bronze badges

1 Comment

Aaron Bratcher Over a year ago

My "Project" is a Swift Package. See the picture in my question. There is no project or targets as you specify in your directions. What you show is good, however I already have that working elsewhere. I recommend deleting this answer.

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