Swift Package IndexBuild Information
Failed to build swift-midi, reference 1.0.0 (e3114a), with Swift 6.2 for Android on 27 Apr 2026 08:43:18 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:android-6.2-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1Build Log
========================================
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/orchetect/swift-midi.git
Reference: 1.0.0
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: git branch -m <name>
From https://github.com/orchetect/swift-midi
* tag 1.0.0 -> FETCH_HEAD
HEAD is now at e3114ae Set extension repo dependencies to 1.0.0
Cloned https://github.com/orchetect/swift-midi.git
Revision (git rev-parse @):
e3114ae1c4498dd2446c8d7bccc997e48eee2f44
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/orchetect/swift-midi.git at 1.0.0
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Build
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Selected platform: android
Swift version: 6.2
Building package at path: $PWD
https://github.com/orchetect/swift-midi.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:android-6.2-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1
android-6.2-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:cb98f9856cb1288a0028ff0e63d4de86ca92d5e7890400e3e915f7ea3943ed55
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:android-6.2-latest
Fetching https://github.com/orchetect/swift-midi-io
Fetching https://github.com/orchetect/swift-midi-ui
Fetching https://github.com/orchetect/swift-midi-controlsurfaces
[1/638] Fetching swift-midi-io
[206/791] Fetching swift-midi-io, swift-midi-ui
[390/1131] Fetching swift-midi-io, swift-midi-ui, swift-midi-controlsurfaces
Fetching https://github.com/orchetect/swift-midi-core
Fetching https://github.com/orchetect/swift-midi-file
Fetching https://github.com/orchetect/swift-midi-sync
Fetched https://github.com/orchetect/swift-midi-ui from cache (0.44s)
Fetched https://github.com/orchetect/swift-midi-controlsurfaces from cache (0.43s)
Fetched https://github.com/orchetect/swift-midi-io from cache (0.44s)
[1/1472] Fetching swift-midi-core
[1017/1702] Fetching swift-midi-core, swift-midi-sync
[1220/2350] Fetching swift-midi-core, swift-midi-sync, swift-midi-file
Fetched https://github.com/orchetect/swift-midi-sync from cache (0.30s)
Fetched https://github.com/orchetect/swift-midi-file from cache (0.37s)
Fetched https://github.com/orchetect/swift-midi-core from cache (0.42s)
Computing version for https://github.com/orchetect/swift-midi-ui
Computed https://github.com/orchetect/swift-midi-ui at 1.0.0 (1.52s)
Computing version for https://github.com/orchetect/swift-midi-sync
Computed https://github.com/orchetect/swift-midi-sync at 1.0.0 (0.61s)
Fetching https://github.com/orchetect/swift-timecode
[1/26955] Fetching swift-timecode
Fetched https://github.com/orchetect/swift-timecode from cache (2.06s)
Computing version for https://github.com/orchetect/swift-midi-io
Computed https://github.com/orchetect/swift-midi-io at 1.0.0 (2.73s)
Computing version for https://github.com/orchetect/swift-midi-file
Computed https://github.com/orchetect/swift-midi-file at 1.0.0 (0.59s)
Fetching https://github.com/orchetect/swift-data-parsing
[1/806] Fetching swift-data-parsing
Fetched https://github.com/orchetect/swift-data-parsing from cache (0.21s)
Computing version for https://github.com/orchetect/swift-midi-core
Computed https://github.com/orchetect/swift-midi-core at 1.0.0 (0.83s)
Computing version for https://github.com/orchetect/swift-midi-controlsurfaces
Computed https://github.com/orchetect/swift-midi-controlsurfaces at 1.0.0 (0.56s)
Computing version for https://github.com/orchetect/swift-timecode
Computed https://github.com/orchetect/swift-timecode at 3.1.1 (2.48s)
Computing version for https://github.com/orchetect/swift-data-parsing
Computed https://github.com/orchetect/swift-data-parsing at 0.1.2 (0.55s)
Creating working copy for https://github.com/orchetect/swift-midi-io
Working copy of https://github.com/orchetect/swift-midi-io resolved at 1.0.0
Creating working copy for https://github.com/orchetect/swift-midi-sync
Working copy of https://github.com/orchetect/swift-midi-sync resolved at 1.0.0
Creating working copy for https://github.com/orchetect/swift-midi-ui
Working copy of https://github.com/orchetect/swift-midi-ui resolved at 1.0.0
Creating working copy for https://github.com/orchetect/swift-midi-core
Working copy of https://github.com/orchetect/swift-midi-core resolved at 1.0.0
Creating working copy for https://github.com/orchetect/swift-timecode
Working copy of https://github.com/orchetect/swift-timecode resolved at 3.1.1
Creating working copy for https://github.com/orchetect/swift-data-parsing
Working copy of https://github.com/orchetect/swift-data-parsing resolved at 0.1.2
Creating working copy for https://github.com/orchetect/swift-midi-file
Working copy of https://github.com/orchetect/swift-midi-file resolved at 1.0.0
Creating working copy for https://github.com/orchetect/swift-midi-controlsurfaces
Working copy of https://github.com/orchetect/swift-midi-controlsurfaces resolved at 1.0.0
Building for debugging...
[0/14] Write sources
[10/14] Write swift-version--11D90AFD9DD3AB2.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[12/132] Emitting module SwiftMIDIIO
/host/spi-builder-workspace/.build/checkouts/swift-midi-io/Sources/Unsupported/SwiftMIDIIO.swift:10:8: error: no such module 'CoreMIDI'
8 |
9 | // artificially cause the build to fail by attempting to import an Apple-only framework
10 | import CoreMIDI
| `- error: no such module 'CoreMIDI'
11 |
[13/132] Compiling SwiftMIDIIO SwiftMIDIIO.swift
/host/spi-builder-workspace/.build/checkouts/swift-midi-io/Sources/Unsupported/SwiftMIDIIO.swift:10:8: error: no such module 'CoreMIDI'
8 |
9 | // artificially cause the build to fail by attempting to import an Apple-only framework
10 | import CoreMIDI
| `- error: no such module 'CoreMIDI'
11 |
/host/spi-builder-workspace/.build/checkouts/swift-midi-core/Sources/SwiftMIDIInternals/Utilities/SafeDispatchTimer.swift:48:48: error: 'DispatchSourceHandler' is not a member type of class 'Dispatch.DispatchSource'
46 | leeway: DispatchTimeInterval = .nanoseconds(0),
47 | queue: DispatchQueue? = nil,
48 | eventHandler: @escaping DispatchSource.DispatchSourceHandler = { }
| `- error: 'DispatchSourceHandler' is not a member type of class 'Dispatch.DispatchSource'
49 | ) {
50 | self.rate = rate
Dispatch.DispatchSource:1:14: note: 'DispatchSource' declared here
1 | public class DispatchSource : DispatchObject, @unchecked Sendable, DispatchSourceProtocol, DispatchSourceRead, DispatchSourceSignal, DispatchSourceTimer, DispatchSourceUserDataAdd, DispatchSourceUserDataOr, DispatchSourceUserDataReplace, DispatchSourceWrite {
| `- note: 'DispatchSource' declared here
2 | deinit
3 | }
/host/spi-builder-workspace/.build/checkouts/swift-midi-core/Sources/SwiftMIDIInternals/Utilities/SafeDispatchTimer.swift:48:23: error: @escaping attribute only applies to function types
46 | leeway: DispatchTimeInterval = .nanoseconds(0),
47 | queue: DispatchQueue? = nil,
48 | eventHandler: @escaping DispatchSource.DispatchSourceHandler = { }
| `- error: @escaping attribute only applies to function types
49 | ) {
50 | self.rate = rate
/host/spi-builder-workspace/.build/checkouts/swift-midi-core/Sources/SwiftMIDIInternals/Utilities/SafeDispatchTimer.swift:123:67: error: 'DispatchSourceHandler' is not a member type of class 'Dispatch.DispatchSource'
121 |
122 | /// Set the event handler closure that the timer executes
123 | public func setEventHandler(handler: @escaping DispatchSource.DispatchSourceHandler) {
| `- error: 'DispatchSourceHandler' is not a member type of class 'Dispatch.DispatchSource'
124 | timer.setEventHandler(handler: handler)
125 | }
Dispatch.DispatchSource:1:14: note: 'DispatchSource' declared here
1 | public class DispatchSource : DispatchObject, @unchecked Sendable, DispatchSourceProtocol, DispatchSourceRead, DispatchSourceSignal, DispatchSourceTimer, DispatchSourceUserDataAdd, DispatchSourceUserDataOr, DispatchSourceUserDataReplace, DispatchSourceWrite {
| `- note: 'DispatchSource' declared here
2 | deinit
3 | }
[14/132] Emitting module SwiftTimecodeCore
/host/spi-builder-workspace/.build/checkouts/swift-timecode/Sources/SwiftTimecodeCore/Utilities/Outsourced/FloatingPoint and Darwin.swift:59:9: error: cannot find 'pow' in scope
57 | @_disfavoredOverload
58 | package func power(_ exponent: Double) -> Double {
59 | pow(self, exponent)
| `- error: cannot find 'pow' in scope
60 | }
61 | }
BUILD FAILURE 6.2 android