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Build Information

Failed to build ReactiveCollectionsKit, reference 0.2.1 (88dff0), with Swift 6.3 for macOS (SPM) on 28 Apr 2026 10:29:51 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/jessesquires/ReactiveCollectionsKit.git
Reference: 0.2.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/jessesquires/ReactiveCollectionsKit
 * tag               0.2.1      -> FETCH_HEAD
HEAD is now at 88dff0c Fixed spacing typo in `AnyCellViewModel` (#160)
Cloned https://github.com/jessesquires/ReactiveCollectionsKit.git
Revision (git rev-parse @):
88dff0cdbc5a5ad9c99831842853cf16d872e38c
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/jessesquires/ReactiveCollectionsKit.git at 0.2.1
========================================
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": "reactivecollectionskit",
      "name": "ReactiveCollectionsKit",
      "url": "https://github.com/jessesquires/ReactiveCollectionsKit.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/ReactiveCollectionsKit",
      "traits": [
        "default"
      ],
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/jessesquires/ReactiveCollectionsKit.git
[1/5248] Fetching reactivecollectionskit
Fetched https://github.com/jessesquires/ReactiveCollectionsKit.git from cache (1.10s)
Creating working copy for https://github.com/jessesquires/ReactiveCollectionsKit.git
Working copy of https://github.com/jessesquires/ReactiveCollectionsKit.git resolved at 0.2.1 (88dff0c)
warning: '.resolve-product-dependencies': dependency 'reactivecollectionskit' 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/jessesquires/ReactiveCollectionsKit.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
[3/23] Compiling ReactiveCollectionsKit Logger.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[4/23] Compiling ReactiveCollectionsKit SectionViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[5/23] Compiling ReactiveCollectionsKit DiffableViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[6/23] Compiling ReactiveCollectionsKit EmptyViewProvider.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[7/23] Compiling ReactiveCollectionsKit SupplementaryViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[8/23] Compiling ReactiveCollectionsKit UICollectionView+Extensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[9/25] Compiling ReactiveCollectionsKit ViewRegistrationProvider.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[10/25] Compiling ReactiveCollectionsKit ViewRegistrationViewType.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
error: emit-module command failed with exit code 1 (use -v to see invocation)
[11/25] Emitting module ReactiveCollectionsKit
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[12/25] Compiling ReactiveCollectionsKit SupplementaryFooterViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[13/25] Compiling ReactiveCollectionsKit SupplementaryHeaderViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[14/25] Compiling ReactiveCollectionsKit ViewRegistration.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[15/25] Compiling ReactiveCollectionsKit ViewRegistrationMethod.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[16/25] Compiling ReactiveCollectionsKit DiffableDataSource.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[17/25] Compiling ReactiveCollectionsKit DiffableSnapshot.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[18/25] Compiling ReactiveCollectionsKit CollectionViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[19/25] Compiling ReactiveCollectionsKit DebugDescriptions.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[20/25] Compiling ReactiveCollectionsKit CollectionViewConstants.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[21/25] Compiling ReactiveCollectionsKit CollectionViewDriver.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[22/25] Compiling ReactiveCollectionsKit CollectionViewDriverOptions.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[23/25] Compiling ReactiveCollectionsKit CellEventCoordinator.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[24/25] Compiling ReactiveCollectionsKit CellViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
[25/25] Compiling ReactiveCollectionsKit Collection+Extensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/CellEventCoordinator.swift:15:8: error: no such module 'UIKit'
13 |
14 | import Foundation
15 | import UIKit
   |        `- error: no such module 'UIKit'
16 |
17 | /// Conforming objects are responsible for handling various cell events.
BUILD FAILURE 6.3 macosSpm