Swift Package Index

Build Information

Failed to build ColorPerception, reference 1.0.0 (73c37a), with Swift 6.3 for macOS (SPM) on 15 Apr 2026 18:38:38 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/gregmturek/color-perception.git
Reference: 1.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/gregmturek/color-perception
 * tag               1.0.0      -> FETCH_HEAD
HEAD is now at 73c37a8 Initial local commit
Cloned https://github.com/gregmturek/color-perception.git
Revision (git rev-parse @):
73c37a85f1846a98d3b1e6c629888f31d45af909
SUCCESS checkout https://github.com/gregmturek/color-perception.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",
  "traits": [
    "default"
  ],
  "dependencies": [
    {
      "identity": "color-perception",
      "name": "ColorPerception",
      "url": "https://github.com/gregmturek/color-perception.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/color-perception",
      "traits": [
        "default"
      ],
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/gregmturek/color-perception.git
[1/34] Fetching color-perception
Fetched https://github.com/gregmturek/color-perception.git from cache (0.64s)
Creating working copy for https://github.com/gregmturek/color-perception.git
Working copy of https://github.com/gregmturek/color-perception.git resolved at 1.0.0 (73c37a8)
warning: '.resolve-product-dependencies': dependency 'color-perception' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.3
Building package at path:  $PWD
https://github.com/gregmturek/color-perception.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--6988338F2F200930.txt
[3/9] Compiling ColorPerception UIColorExtension.swift
/Users/admin/builder/spi-builder-workspace/Sources/ColorPerception/UIColorExtension.swift:8:8: error: no such module 'UIKit'
 6 | //
 7 |
 8 | import UIKit
   |        `- error: no such module 'UIKit'
 9 |
10 | extension UIColor: ColorConvertible {
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/9] Emitting module ColorPerception
/Users/admin/builder/spi-builder-workspace/Sources/ColorPerception/UIColorExtension.swift:8:8: error: no such module 'UIKit'
 6 | //
 7 |
 8 | import UIKit
   |        `- error: no such module 'UIKit'
 9 |
10 | extension UIColor: ColorConvertible {
[5/9] Compiling ColorPerception DefaultContrastPairCache.swift
/Users/admin/builder/spi-builder-workspace/Sources/ColorPerception/UIColorExtension.swift:8:8: error: no such module 'UIKit'
 6 | //
 7 |
 8 | import UIKit
   |        `- error: no such module 'UIKit'
 9 |
10 | extension UIColor: ColorConvertible {
[6/9] Compiling ColorPerception PerceptualColor.swift
/Users/admin/builder/spi-builder-workspace/Sources/ColorPerception/UIColorExtension.swift:8:8: error: no such module 'UIKit'
 6 | //
 7 |
 8 | import UIKit
   |        `- error: no such module 'UIKit'
 9 |
10 | extension UIColor: ColorConvertible {
[7/9] Compiling ColorPerception ContrastPairCache.swift
/Users/admin/builder/spi-builder-workspace/Sources/ColorPerception/UIColorExtension.swift:8:8: error: no such module 'UIKit'
 6 | //
 7 |
 8 | import UIKit
   |        `- error: no such module 'UIKit'
 9 |
10 | extension UIColor: ColorConvertible {
[8/9] Compiling ColorPerception ColorPerceptionUtils.swift
/Users/admin/builder/spi-builder-workspace/Sources/ColorPerception/UIColorExtension.swift:8:8: error: no such module 'UIKit'
 6 | //
 7 |
 8 | import UIKit
   |        `- error: no such module 'UIKit'
 9 |
10 | extension UIColor: ColorConvertible {
[9/9] Compiling ColorPerception ColorExtension.swift
/Users/admin/builder/spi-builder-workspace/Sources/ColorPerception/UIColorExtension.swift:8:8: error: no such module 'UIKit'
 6 | //
 7 |
 8 | import UIKit
   |        `- error: no such module 'UIKit'
 9 |
10 | extension UIColor: ColorConvertible {
BUILD FAILURE 6.3 macosSpm