Build Information
Failed to build ArrowView, reference 1.1.0 (be7c82), with Swift 6.3 for macOS (SPM) on 12 Apr 2026 16:18:16 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/bradhowes/ArrowView.git
Reference: 1.1.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/bradhowes/ArrowView
* tag 1.1.0 -> FETCH_HEAD
HEAD is now at be7c829 Add LICENSE
Cloned https://github.com/bradhowes/ArrowView.git
Revision (git rev-parse @):
be7c8296ca959b2517c8d33d369a124b1873a719
SUCCESS checkout https://github.com/bradhowes/ArrowView.git at 1.1.0
Fetching https://github.com/pointfreeco/swift-snapshot-testing.git
[1/16046] Fetching swift-snapshot-testing
Fetched https://github.com/pointfreeco/swift-snapshot-testing.git from cache (5.52s)
Computing version for https://github.com/pointfreeco/swift-snapshot-testing.git
Computed https://github.com/pointfreeco/swift-snapshot-testing.git at 1.19.2 (6.36s)
Fetching https://github.com/pointfreeco/swift-custom-dump
Fetching https://github.com/swiftlang/swift-syntax
[1/5464] Fetching swift-custom-dump
[5465/80431] Fetching swift-custom-dump, swift-syntax
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Computing version for https://github.com/pointfreeco/swift-custom-dump
Computed https://github.com/pointfreeco/swift-custom-dump at 1.5.0 (4.75s)
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay
[1/5723] Fetching xctest-dynamic-overlay
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (1.37s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 603.0.0 (2.18s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.9.0 (0.60s)
Creating working copy for https://github.com/pointfreeco/swift-snapshot-testing.git
Working copy of https://github.com/pointfreeco/swift-snapshot-testing.git resolved at 1.19.2
Creating working copy for https://github.com/pointfreeco/swift-custom-dump
Working copy of https://github.com/pointfreeco/swift-custom-dump resolved at 1.5.0
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 603.0.0
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.9.0
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/603.0.0/swiftlang-6.3.0.123.5-macosx26.4-MacroSupport.zip
Downloaded https://download.swift.org/prebuilts/swift-syntax/603.0.0/swiftlang-6.3.0.123.5-macosx26.4-MacroSupport.zip (0.80s)
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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": "arrowview",
"name": "ArrowView",
"url": "https://github.com/bradhowes/ArrowView.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/ArrowView",
"traits": [
"default"
],
"dependencies": [
{
"identity": "swift-snapshot-testing",
"name": "swift-snapshot-testing",
"url": "https://github.com/pointfreeco/swift-snapshot-testing.git",
"version": "1.19.2",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-snapshot-testing",
"traits": [
"default"
],
"dependencies": [
{
"identity": "swift-custom-dump",
"name": "swift-custom-dump",
"url": "https://github.com/pointfreeco/swift-custom-dump",
"version": "1.5.0",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-custom-dump",
"traits": [
"default"
],
"dependencies": [
{
"identity": "xctest-dynamic-overlay",
"name": "xctest-dynamic-overlay",
"url": "https://github.com/pointfreeco/xctest-dynamic-overlay",
"version": "1.9.0",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/xctest-dynamic-overlay",
"traits": [
"default"
],
"dependencies": [
]
}
]
},
{
"identity": "swift-syntax",
"name": "swift-syntax",
"url": "https://github.com/swiftlang/swift-syntax",
"version": "603.0.0",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-syntax",
"traits": [
"default"
],
"dependencies": [
]
}
]
}
]
}
]
}
Fetching https://github.com/bradhowes/ArrowView.git
[1/174] Fetching arrowview
Fetched https://github.com/bradhowes/ArrowView.git from cache (0.97s)
Fetching https://github.com/pointfreeco/swift-snapshot-testing.git from cache
Fetched https://github.com/pointfreeco/swift-snapshot-testing.git from cache (0.62s)
Computing version for https://github.com/pointfreeco/swift-snapshot-testing.git
Computed https://github.com/pointfreeco/swift-snapshot-testing.git at 1.19.2 (0.71s)
Fetching https://github.com/pointfreeco/swift-custom-dump from cache
Fetching https://github.com/swiftlang/swift-syntax from cache
Fetched https://github.com/swiftlang/swift-syntax from cache (1.00s)
Fetched https://github.com/pointfreeco/swift-custom-dump from cache (1.00s)
Computing version for https://github.com/pointfreeco/swift-custom-dump
Computed https://github.com/pointfreeco/swift-custom-dump at 1.5.0 (1.13s)
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay from cache
Fetched https://github.com/pointfreeco/xctest-dynamic-overlay from cache (0.44s)
Computing version for https://github.com/swiftlang/swift-syntax
Computed https://github.com/swiftlang/swift-syntax at 603.0.0 (0.56s)
Computing version for https://github.com/pointfreeco/xctest-dynamic-overlay
Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 1.9.0 (0.09s)
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 1.9.0
Creating working copy for https://github.com/swiftlang/swift-syntax
Working copy of https://github.com/swiftlang/swift-syntax resolved at 603.0.0
Creating working copy for https://github.com/pointfreeco/swift-snapshot-testing.git
Working copy of https://github.com/pointfreeco/swift-snapshot-testing.git resolved at 1.19.2
Creating working copy for https://github.com/pointfreeco/swift-custom-dump
Working copy of https://github.com/pointfreeco/swift-custom-dump resolved at 1.5.0
Creating working copy for https://github.com/bradhowes/ArrowView.git
Working copy of https://github.com/bradhowes/ArrowView.git resolved at 1.1.0 (be7c829)
warning: '.resolve-product-dependencies': dependency 'arrowview' is not used by any target
Found 1 product dependencies
- swift-snapshot-testing
========================================
Build
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Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/bradhowes/ArrowView.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
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/4] Emitting module ArrowView
/Users/admin/builder/spi-builder-workspace/Sources/ArrowView/ArrowView.swift:3:8: error: no such module 'UIKit'
1 | // Copyright © 2021 Brad Howes. All rights reserved.
2 |
3 | import UIKit
| `- error: no such module 'UIKit'
4 |
5 | /**
[4/4] Compiling ArrowView ArrowView.swift
/Users/admin/builder/spi-builder-workspace/Sources/ArrowView/ArrowView.swift:3:8: error: no such module 'UIKit'
1 | // Copyright © 2021 Brad Howes. All rights reserved.
2 |
3 | import UIKit
| `- error: no such module 'UIKit'
4 |
5 | /**
BUILD FAILURE 6.3 macosSpm