Build Information
Failed to build ListDiffUI, reference main (d31fe3), with Swift 6.3 for macOS (SPM) on 13 Apr 2026 15:35:19 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64Build Log
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/siyuyue/ListDiffUI.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/siyuyue/ListDiffUI
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at d31fe32 Add module in MODULE.bazel
Cloned https://github.com/siyuyue/ListDiffUI.git
Revision (git rev-parse @):
d31fe32aecdc112078619c40003e95254840c3e5
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/siyuyue/ListDiffUI.git at main
Fetching https://github.com/lxcid/ListDiff.git
[1/212] Fetching listdiff
Fetched https://github.com/lxcid/ListDiff.git from cache (0.73s)
Creating working copy for https://github.com/lxcid/ListDiff.git
Working copy of https://github.com/lxcid/ListDiff.git resolved at 1390504170150f378aa1be17f92322e6d12533d8
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ResolveProductDependencies
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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": "listdiffui",
"name": "ListDiffUI",
"url": "https://github.com/siyuyue/ListDiffUI.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/ListDiffUI",
"traits": [
"default"
],
"dependencies": [
{
"identity": "listdiff",
"name": "ListDiff",
"url": "https://github.com/lxcid/ListDiff.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/ListDiff",
"traits": [
"default"
],
"dependencies": [
]
}
]
}
]
}
Fetching https://github.com/siyuyue/ListDiffUI.git
[1/157] Fetching listdiffui
Fetched https://github.com/siyuyue/ListDiffUI.git from cache (1.07s)
Fetching https://github.com/lxcid/ListDiff.git from cache
Fetched https://github.com/lxcid/ListDiff.git from cache (0.40s)
Creating working copy for https://github.com/lxcid/ListDiff.git
Working copy of https://github.com/lxcid/ListDiff.git resolved at 1390504170150f378aa1be17f92322e6d12533d8
Creating working copy for https://github.com/siyuyue/ListDiffUI.git
Working copy of https://github.com/siyuyue/ListDiffUI.git resolved at main (d31fe32)
warning: '.resolve-product-dependencies': dependency 'listdiffui' is not used by any target
Found 1 product dependencies
- ListDiff
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Build
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Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/siyuyue/ListDiffUI.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version--6988338F2F200930.txt
[4/5] Compiling ListDiff ListDiff.swift
[5/5] Emitting module ListDiff
[6/13] Compiling ListDiffUI ListViewModel.swift
/Users/admin/builder/spi-builder-workspace/Sources/ListCell.swift:1:8: error: no such module 'UIKit'
1 | import UIKit
| `- error: no such module 'UIKit'
2 |
3 | /// Cell class that extends from UICollectionViewCell.
[7/13] Compiling ListDiffUI ListViewState.swift
/Users/admin/builder/spi-builder-workspace/Sources/ListCell.swift:1:8: error: no such module 'UIKit'
1 | import UIKit
| `- error: no such module 'UIKit'
2 |
3 | /// Cell class that extends from UICollectionViewCell.
[8/13] Compiling ListDiffUI ListSection.swift
/Users/admin/builder/spi-builder-workspace/Sources/ListCell.swift:1:8: error: no such module 'UIKit'
1 | import UIKit
| `- error: no such module 'UIKit'
2 |
3 | /// Cell class that extends from UICollectionViewCell.
error: emit-module command failed with exit code 1 (use -v to see invocation)
[9/13] Emitting module ListDiffUI
/Users/admin/builder/spi-builder-workspace/Sources/ListCell.swift:1:8: error: no such module 'UIKit'
1 | import UIKit
| `- error: no such module 'UIKit'
2 |
3 | /// Cell class that extends from UICollectionViewCell.
[10/13] Compiling ListDiffUI ListDiffDataSource.swift
/Users/admin/builder/spi-builder-workspace/Sources/ListCell.swift:1:8: error: no such module 'UIKit'
1 | import UIKit
| `- error: no such module 'UIKit'
2 |
3 | /// Cell class that extends from UICollectionViewCell.
[11/13] Compiling ListDiffUI ListCellController.swift
/Users/admin/builder/spi-builder-workspace/Sources/ListCell.swift:1:8: error: no such module 'UIKit'
1 | import UIKit
| `- error: no such module 'UIKit'
2 |
3 | /// Cell class that extends from UICollectionViewCell.
[12/13] Compiling ListDiffUI ListDiffContext.swift
/Users/admin/builder/spi-builder-workspace/Sources/ListCell.swift:1:8: error: no such module 'UIKit'
1 | import UIKit
| `- error: no such module 'UIKit'
2 |
3 | /// Cell class that extends from UICollectionViewCell.
[13/13] Compiling ListDiffUI ListCell.swift
/Users/admin/builder/spi-builder-workspace/Sources/ListCell.swift:1:8: error: no such module 'UIKit'
1 | import UIKit
| `- error: no such module 'UIKit'
2 |
3 | /// Cell class that extends from UICollectionViewCell.
BUILD FAILURE 6.3 macosSpm