The Swift Package Index logo.Swift Package Index

Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build ViewKit, reference 1.0.0 (dafb66), with Swift 6.1 for macOS (SPM) on 27 Apr 2025 13:20:20 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/lucaswkuipers/ViewKit.git
Reference: 1.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/lucaswkuipers/ViewKit
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at dafb663 Fix sample
Cloned https://github.com/lucaswkuipers/ViewKit.git
Revision (git rev-parse @):
dafb6634b088d9ce653fb79d3dd848d73b5799bc
SUCCESS checkout https://github.com/lucaswkuipers/ViewKit.git at 1.0.0
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "viewkit",
      "name": "ViewKit",
      "url": "https://github.com/lucaswkuipers/ViewKit.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/ViewKit",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/lucaswkuipers/ViewKit.git
[1/285] Fetching viewkit
Fetched https://github.com/lucaswkuipers/ViewKit.git from cache (0.71s)
Creating working copy for https://github.com/lucaswkuipers/ViewKit.git
Working copy of https://github.com/lucaswkuipers/ViewKit.git resolved at 1.0.0 (dafb663)
warning: '.resolve-product-dependencies': dependency 'viewkit' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/lucaswkuipers/ViewKit.git
https://github.com/lucaswkuipers/ViewKit.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "ViewKit",
  "name" : "ViewKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "ViewKit",
      "targets" : [
        "ViewKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ViewKitTests",
      "module_type" : "SwiftTarget",
      "name" : "ViewKitTests",
      "path" : "Tests/ViewKitTests",
      "sources" : [
        "UILabel+tests.swift"
      ],
      "target_dependencies" : [
        "ViewKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ViewKit",
      "module_type" : "SwiftTarget",
      "name" : "ViewKit",
      "path" : "Sources/ViewKit",
      "product_memberships" : [
        "ViewKit"
      ],
      "sources" : [
        "Filler.swift",
        "Internal/@_exported.swift",
        "Internal/Notification.swift",
        "Preview/UIViewPreview.swift",
        "ProgrammaticView.swift",
        "ProgrammaticViewBuilder.swift",
        "UIButton.swift",
        "UIControl.swift",
        "UIImageView.swift",
        "UILabel.swift",
        "UIStackView.swift",
        "UITextField.swift",
        "UIView.swift",
        "ViewController.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-2F0A5646E1D333AE.txt
[3/16] Compiling ViewKit UIView.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[4/17] Compiling ViewKit UITextField.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[5/17] Compiling ViewKit UILabel.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[6/17] Compiling ViewKit UIStackView.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[7/17] Compiling ViewKit UIImageView.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[8/17] Compiling ViewKit UIButton.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[9/17] Compiling ViewKit UIControl.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[10/17] Compiling ViewKit ProgrammaticView.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[11/17] Compiling ViewKit ProgrammaticViewBuilder.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[12/17] Compiling ViewKit ViewController.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[13/17] Emitting module ViewKit
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[14/17] Compiling ViewKit Filler.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[15/17] Compiling ViewKit @_exported.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[16/17] Compiling ViewKit Notification.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[17/17] Compiling ViewKit UIViewPreview.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-2F0A5646E1D333AE.txt
[2/15] Compiling ViewKit UIImageView.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/16] Emitting module ViewKit
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[4/16] Compiling ViewKit Notification.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[5/16] Compiling ViewKit UIViewPreview.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[6/16] Compiling ViewKit UIStackView.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[7/16] Compiling ViewKit Filler.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[8/16] Compiling ViewKit @_exported.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[9/16] Compiling ViewKit ProgrammaticView.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[10/16] Compiling ViewKit ProgrammaticViewBuilder.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[11/16] Compiling ViewKit UIButton.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[12/16] Compiling ViewKit UIControl.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[13/16] Compiling ViewKit UILabel.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[14/16] Compiling ViewKit UITextField.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[15/16] Compiling ViewKit UIView.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
[16/16] Compiling ViewKit ViewController.swift
/Users/admin/builder/spi-builder-workspace/Sources/ViewKit/Internal/@_exported.swift:1:19: error: no such module 'UIKit'
1 | @_exported import UIKit
  |                   `- error: no such module 'UIKit'
2 |
BUILD FAILURE 6.1 macosSpm