Swift Package IndexBuild Information
Failed to build SwiftUIKit, reference 3.0.1 (bcfd62), with Swift 6.3 for macOS (SPM) on 12 Apr 2026 08:25:10 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/0xLet/SwiftUIKit.git
Reference: 3.0.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/0xLet/SwiftUIKit
* tag 3.0.1 -> FETCH_HEAD
HEAD is now at bcfd62d Updated DataObject to 1.0.0
Cloned https://github.com/0xLet/SwiftUIKit.git
Revision (git rev-parse @):
bcfd62da77d0025920eed05c7efa1d6719811c0b
SUCCESS checkout https://github.com/0xLet/SwiftUIKit.git at 3.0.1
Fetching https://github.com/0xLet/DataObject.git
Fetching https://github.com/0xLeif/Observation
[1/61] Fetching observation
[62/154] Fetching observation, dataobject
Fetched https://github.com/0xLet/DataObject.git from cache (0.66s)
Fetched https://github.com/0xLeif/Observation from cache (0.66s)
Computing version for https://github.com/0xLeif/Observation
Computed https://github.com/0xLeif/Observation at 0.0.2 (1.36s)
Fetching https://github.com/0xLeif/Chain
[1/119] Fetching chain
Fetched https://github.com/0xLeif/Chain from cache (0.64s)
Computing version for https://github.com/0xLeif/Chain
Computed https://github.com/0xLeif/Chain at 0.3.0 (1.32s)
Fetching https://github.com/0xLeif/E.num
[1/130] Fetching e.num
Fetched https://github.com/0xLeif/E.num from cache (0.58s)
Computing version for https://github.com/0xLeif/E.num
Computed https://github.com/0xLeif/E.num at 0.3.0 (1.24s)
Computing version for https://github.com/0xLet/DataObject.git
Computed https://github.com/0xLet/DataObject.git at 1.1.1 (0.63s)
Fetching https://github.com/0xLet/SwiftFu
Fetching https://github.com/0xLet/SURL
Fetching https://github.com/0xLet/WTV
[1/52] Fetching wtv
[53/97] Fetching wtv, surl
[98/246] Fetching wtv, surl, swiftfu
Fetched https://github.com/0xLet/WTV from cache (0.70s)
Fetched https://github.com/0xLet/SwiftFu from cache (0.70s)
Fetched https://github.com/0xLet/SURL from cache (0.70s)
Computing version for https://github.com/0xLet/SwiftFu
Computed https://github.com/0xLet/SwiftFu at 1.0.1 (1.46s)
Computing version for https://github.com/0xLet/WTV
Computed https://github.com/0xLet/WTV at 0.1.1 (0.78s)
Computing version for https://github.com/0xLet/SURL
Computed https://github.com/0xLet/SURL at 0.1.1 (0.69s)
Creating working copy for https://github.com/0xLeif/Chain
Working copy of https://github.com/0xLeif/Chain resolved at 0.3.0
Creating working copy for https://github.com/0xLet/DataObject.git
Working copy of https://github.com/0xLet/DataObject.git resolved at 1.1.1
Creating working copy for https://github.com/0xLet/SURL
Working copy of https://github.com/0xLet/SURL resolved at 0.1.1
Creating working copy for https://github.com/0xLet/WTV
Working copy of https://github.com/0xLet/WTV resolved at 0.1.1
Creating working copy for https://github.com/0xLet/SwiftFu
Working copy of https://github.com/0xLet/SwiftFu resolved at 1.0.1
Creating working copy for https://github.com/0xLeif/Observation
Working copy of https://github.com/0xLeif/Observation resolved at 0.0.2
Creating working copy for https://github.com/0xLeif/E.num
Working copy of https://github.com/0xLeif/E.num resolved at 0.3.0
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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": "swiftuikit",
"name": "SwiftUIKit",
"url": "https://github.com/0xLet/SwiftUIKit.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SwiftUIKit",
"traits": [
"default"
],
"dependencies": [
{
"identity": "observation",
"name": "Observation",
"url": "https://github.com/0xLeif/Observation",
"version": "0.0.2",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Observation",
"traits": [
"default"
],
"dependencies": [
{
"identity": "chain",
"name": "Chain",
"url": "https://github.com/0xLeif/Chain",
"version": "0.3.0",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/Chain",
"traits": [
"default"
],
"dependencies": [
{
"identity": "e.num",
"name": "E",
"url": "https://github.com/0xLeif/E.num",
"version": "0.3.0",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/E.num",
"traits": [
"default"
],
"dependencies": [
]
}
]
}
]
},
{
"identity": "dataobject",
"name": "DataObject",
"url": "https://github.com/0xLet/DataObject.git",
"version": "1.1.1",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/DataObject",
"traits": [
"default"
],
"dependencies": [
{
"identity": "wtv",
"name": "WTV",
"url": "https://github.com/0xLet/WTV",
"version": "0.1.1",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/WTV",
"traits": [
"default"
],
"dependencies": [
]
},
{
"identity": "surl",
"name": "SURL",
"url": "https://github.com/0xLet/SURL",
"version": "0.1.1",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SURL",
"traits": [
"default"
],
"dependencies": [
]
},
{
"identity": "swiftfu",
"name": "SwiftFu",
"url": "https://github.com/0xLet/SwiftFu",
"version": "1.0.1",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SwiftFu",
"traits": [
"default"
],
"dependencies": [
]
}
]
}
]
}
]
}
Fetching https://github.com/0xLet/SwiftUIKit.git
[1/3913] Fetching swiftuikit
Fetched https://github.com/0xLet/SwiftUIKit.git from cache (1.07s)
Fetching https://github.com/0xLet/DataObject.git from cache
Fetching https://github.com/0xLeif/Observation from cache
Fetched https://github.com/0xLet/DataObject.git from cache (0.47s)
Fetched https://github.com/0xLeif/Observation from cache (0.47s)
Computing version for https://github.com/0xLeif/Observation
Computed https://github.com/0xLeif/Observation at 0.0.2 (0.53s)
Fetching https://github.com/0xLeif/Chain from cache
Fetched https://github.com/0xLeif/Chain from cache (0.45s)
Computing version for https://github.com/0xLeif/Chain
Computed https://github.com/0xLeif/Chain at 0.3.0 (0.51s)
Fetching https://github.com/0xLeif/E.num from cache
Fetched https://github.com/0xLeif/E.num from cache (0.46s)
Computing version for https://github.com/0xLeif/E.num
Computed https://github.com/0xLeif/E.num at 0.3.0 (0.52s)
Computing version for https://github.com/0xLet/DataObject.git
Computed https://github.com/0xLet/DataObject.git at 1.1.1 (0.03s)
Fetching https://github.com/0xLet/WTV from cache
Fetching https://github.com/0xLet/SURL from cache
Fetching https://github.com/0xLet/SwiftFu from cache
Fetched https://github.com/0xLet/SwiftFu from cache (0.45s)
Fetched https://github.com/0xLet/WTV from cache (0.45s)
Fetched https://github.com/0xLet/SURL from cache (0.45s)
Computing version for https://github.com/0xLet/SwiftFu
Computed https://github.com/0xLet/SwiftFu at 1.0.1 (0.51s)
Computing version for https://github.com/0xLet/WTV
Computed https://github.com/0xLet/WTV at 0.1.1 (0.03s)
Computing version for https://github.com/0xLet/SURL
Computed https://github.com/0xLet/SURL at 0.1.1 (0.03s)
Creating working copy for https://github.com/0xLet/DataObject.git
Working copy of https://github.com/0xLet/DataObject.git resolved at 1.1.1
Creating working copy for https://github.com/0xLet/SwiftUIKit.git
Working copy of https://github.com/0xLet/SwiftUIKit.git resolved at 3.0.1 (bcfd62d)
Creating working copy for https://github.com/0xLet/SwiftFu
Working copy of https://github.com/0xLet/SwiftFu resolved at 1.0.1
Creating working copy for https://github.com/0xLeif/Observation
Working copy of https://github.com/0xLeif/Observation resolved at 0.0.2
Creating working copy for https://github.com/0xLeif/E.num
Working copy of https://github.com/0xLeif/E.num resolved at 0.3.0
Creating working copy for https://github.com/0xLet/WTV
Working copy of https://github.com/0xLet/WTV resolved at 0.1.1
Creating working copy for https://github.com/0xLeif/Chain
Working copy of https://github.com/0xLeif/Chain resolved at 0.3.0
Creating working copy for https://github.com/0xLet/SURL
Working copy of https://github.com/0xLet/SURL resolved at 0.1.1
warning: '.resolve-product-dependencies': dependency 'swiftuikit' is not used by any target
Found 2 product dependencies
- Observation
- DataObject
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Build
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Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/0xLet/SwiftUIKit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/9] Write sources
[8/9] Write swift-version--6988338F2F200930.txt
[10/33] Compiling E Control.swift
[11/33] Emitting module E
[12/33] Compiling E Function.swift
[13/33] Compiling E State.swift
[14/33] Compiling E Variable.swift
[15/35] Compiling SwiftFu Printable.swift
[16/36] Compiling SwiftFu Tuplable.swift
[17/36] Compiling SwiftFu SwiftFu+.swift
[18/36] Compiling SwiftFu Functionable.swift
[19/36] Compiling SwiftFu Modifiable.swift
[20/36] Compiling SwiftFu Boolable.swift
[21/36] Compiling SwiftFu Configurable.swift
[22/36] Compiling SwiftFu Fuable.swift
[23/36] Emitting module SURL
[24/36] Compiling SURL URLRequest+.swift
[25/36] Emitting module SwiftFu
[26/36] Compiling SwiftFu BinaryInteger+.swift
[27/36] Compiling SwiftFu Assertable.swift
[28/36] Compiling SwiftFu Foundation+SwiftFu.swift
[29/36] Compiling SwiftFu BinaryFloatingPoint+.swift
[30/36] Compiling SwiftFu Switch+.swift
[31/36] Compiling SURL String+.swift
[32/36] Compiling SURL URL+.swift
[33/36] Emitting module WTV
[34/36] Compiling WTV WTV.swift
[35/36] Compiling Chain Chain.swift
[36/36] Emitting module Chain
error: emit-module command failed with exit code 1 (use -v to see invocation)
[37/46] Compiling Observation ObservedValue.swift
<unknown>:0: error: circular dependency between modules 'Observation' and 'Foundation'
[38/46] Emitting module Observation
<unknown>:0: error: circular dependency between modules 'Observation' and 'Foundation'
[39/46] Compiling DataObject DataObject+WTV.swift
[40/46] Compiling DataObject Encodable+DataObject.swift
BUILD FAILURE 6.3 macosSpm