Swift Package IndexBuild Information
Failed to build swift-tts, reference 2.1.2 (01ed54), with Swift 6.3 for macOS (SPM) on 21 Apr 2026 10:42:35 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/renaudjenny/swift-tts.git
Reference: 2.1.2
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/renaudjenny/swift-tts
* tag 2.1.2 -> FETCH_HEAD
HEAD is now at 01ed546 build(macOS): re-add macOS in the package but error if it's built for it
Cloned https://github.com/renaudjenny/swift-tts.git
Revision (git rev-parse @):
01ed546e43f75e45eee49ed91f5a449d86e48fa3
SUCCESS checkout https://github.com/renaudjenny/swift-tts.git at 2.1.2
Fetching https://github.com/pointfreeco/xctest-dynamic-overlay
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Working copy of https://github.com/pointfreeco/combine-schedulers resolved at 0.9.1
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Working copy of https://github.com/pointfreeco/swift-dependencies resolved at 0.2.0
Creating working copy for https://github.com/pointfreeco/xctest-dynamic-overlay
Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 0.8.4
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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"
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"dependencies": [
{
"identity": "swift-tts",
"name": "swift-tts",
"url": "https://github.com/renaudjenny/swift-tts.git",
"version": "unspecified",
"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-tts",
"traits": [
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"dependencies": [
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"traits": [
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"dependencies": [
{
"identity": "swift-concurrency-extras",
"name": "swift-concurrency-extras",
"url": "https://github.com/pointfreeco/swift-concurrency-extras",
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"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/swift-concurrency-extras",
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{
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"name": "swift-clocks",
"url": "https://github.com/pointfreeco/swift-clocks",
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"url": "https://github.com/pointfreeco/swift-concurrency-extras",
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"url": "https://github.com/pointfreeco/xctest-dynamic-overlay",
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"path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/xctest-dynamic-overlay",
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}
]
}
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Computed https://github.com/pointfreeco/swift-clocks at 0.4.0 (1.57s)
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Computed https://github.com/pointfreeco/combine-schedulers at 0.11.0 (0.66s)
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Computed https://github.com/pointfreeco/swift-concurrency-extras at 0.1.2 (0.66s)
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Computed https://github.com/pointfreeco/xctest-dynamic-overlay at 0.9.0 (0.03s)
Creating working copy for https://github.com/pointfreeco/swift-concurrency-extras
Working copy of https://github.com/pointfreeco/swift-concurrency-extras resolved at 0.1.2
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Working copy of https://github.com/pointfreeco/combine-schedulers resolved at 0.11.0
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Working copy of https://github.com/pointfreeco/xctest-dynamic-overlay resolved at 0.9.0
Creating working copy for https://github.com/pointfreeco/swift-dependencies
Working copy of https://github.com/pointfreeco/swift-dependencies resolved at 0.6.0
Creating working copy for https://github.com/pointfreeco/swift-clocks
Working copy of https://github.com/pointfreeco/swift-clocks resolved at 0.4.0
Creating working copy for https://github.com/renaudjenny/swift-tts.git
Working copy of https://github.com/renaudjenny/swift-tts.git resolved at 2.1.2 (01ed546)
warning: '.resolve-product-dependencies': dependency 'swift-tts' is not used by any target
Found 1 product dependencies
- swift-dependencies
========================================
Build
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Selected platform: macosSpm
Swift version: 6.3
Building package at path: $PWD
https://github.com/renaudjenny/swift-tts.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun swift build --arch arm64
Building for debugging...
[0/8] Write sources
[7/8] Write swift-version--6988338F2F200930.txt
[9/21] Compiling XCTestDynamicOverlay XCTIsTesting.swift
[10/21] Emitting module XCTestDynamicOverlay
[11/21] Compiling XCTestDynamicOverlay Unimplemented.swift
[12/21] Compiling XCTestDynamicOverlay XCTCurrentTestCase.swift
[13/21] Compiling XCTestDynamicOverlay RuntimeWarnings.swift
[14/21] Compiling XCTestDynamicOverlay GeneratePlaceholder.swift
[15/21] Compiling XCTestDynamicOverlay Deprecations.swift
[16/21] Compiling XCTestDynamicOverlay DefaultInitializable.swift
[17/21] Compiling XCTestDynamicOverlay XCTFail.swift
[18/43] Compiling Clocks Timer.swift
[19/44] Compiling CombineSchedulers UIKit.swift
[20/44] Compiling CombineSchedulers UIScheduler.swift
[21/45] Compiling Clocks Lock.swift
[22/45] Compiling CombineSchedulers Lock.swift
[23/45] Emitting module Clocks
[24/45] Compiling Clocks Yield.swift
[25/45] Compiling Clocks _AsyncTimerSequence.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[26/45] Emitting module SwiftTTSCombine
/Users/admin/builder/spi-builder-workspace/Sources/SwiftTTSCombine/SwiftTTSCombine.swift:2:8: error: This library is not compatible with macOS
1 | #if os(macOS)
2 | #error("This library is not compatible with macOS")
| `- error: This library is not compatible with macOS
3 | #endif
4 |
[27/45] Compiling SwiftTTSCombine SwiftTTSCombine.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftTTSCombine/SwiftTTSCombine.swift:2:8: error: This library is not compatible with macOS
1 | #if os(macOS)
2 | #error("This library is not compatible with macOS")
| `- error: This library is not compatible with macOS
3 | #endif
4 |
error: emit-module command failed with exit code 1 (use -v to see invocation)
[28/45] Emitting module SwiftTTS
/Users/admin/builder/spi-builder-workspace/Sources/SwiftTTS/SwiftTTS.swift:2:8: error: This library is not compatible with macOS
1 | #if os(macOS)
2 | #error("This library is not compatible with macOS")
| `- error: This library is not compatible with macOS
3 | #endif
4 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftTTS/SwiftTTS.swift:2:8: error: This library is not compatible with macOS
1 | #if os(macOS)
2 | #error("This library is not compatible with macOS")
| `- error: This library is not compatible with macOS
3 | #endif
4 |
BUILD FAILURE 6.3 macosSpm