Swift Package Index

Build Information

Failed to build SwiftyModbus, reference 2.2.1 (444406), with Swift 6.3 for Android on 13 Apr 2026 18:43:09 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-6.3-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/DimaRU/SwiftyModbus.git
Reference: 2.2.1
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/DimaRU/SwiftyModbus
 * tag               2.2.1      -> FETCH_HEAD
HEAD is now at 444406b Fix Package definition file errors for Xcode 15/Swift 5.9
Cloned https://github.com/DimaRU/SwiftyModbus.git
Revision (git rev-parse @):
444406bf0d43bf325073e892256c963e5bf77441
SUCCESS checkout https://github.com/DimaRU/SwiftyModbus.git at 2.2.1
========================================
Build
========================================
Selected platform:         android
Swift version:             6.3
Building package at path:  $PWD
https://github.com/DimaRU/SwiftyModbus.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1
android-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:9008270ea37a55e78725e6225015adb5eff8582da520c5232bf0499f32c36dc4
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest
Fetching https://github.com/mxcl/PromiseKit.git
[1/17242] Fetching promisekit
Fetched https://github.com/mxcl/PromiseKit.git from cache (2.45s)
Computing version for https://github.com/mxcl/PromiseKit.git
Computed https://github.com/mxcl/PromiseKit.git at 6.22.1 (3.49s)
Creating working copy for https://github.com/mxcl/PromiseKit.git
Working copy of https://github.com/mxcl/PromiseKit.git resolved at 6.22.1
warning: you may be able to install libmodbus using your system-packager:
    apt-get install libmodbus-dev
warning: you may be able to install libmodbus using your system-packager:
    apt-get install libmodbus-dev
Building for debugging...
[0/4] Write sources
[3/4] Write swift-version--4F562202D5529B1.txt
[5/23] Emitting module PromiseKit
[6/25] Compiling PromiseKit Combine.swift
[7/25] Compiling PromiseKit Configuration.swift
[8/25] Compiling PromiseKit Async.swift
[9/25] Compiling PromiseKit Box.swift
[10/25] Compiling PromiseKit Catchable.swift
[11/25] Compiling PromiseKit Thenable.swift
[12/25] Compiling PromiseKit after.swift
[13/25] Compiling PromiseKit Guarantee.swift
[14/25] Compiling PromiseKit LogEvent.swift
[15/25] Compiling PromiseKit firstly.swift
[16/25] Compiling PromiseKit hang.swift
[17/25] Compiling PromiseKit Promise.swift
[18/25] Compiling PromiseKit Resolver.swift
[19/25] Compiling PromiseKit race.swift
[20/25] Compiling PromiseKit when.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[21/25] Emitting module SwiftyModbus
<module-includes>:1:10: note: in file included from <module-includes>:1:
1 | #include "libmodbus.h"
  |          `- note: in file included from <module-includes>:1:
2 |
/host/spi-builder-workspace/Sources/Libmodbus/libmodbus.h:1:9: error: 'modbus.h' file not found
1 | #import <modbus.h>
  |         `- error: 'modbus.h' file not found
2 |
/host/spi-builder-workspace/Sources/SwiftyModbus/SwiftyModbus.swift:9:8: error: could not build C module 'CModbus'
  7 |
  8 | import Foundation
  9 | import CModbus
    |        `- error: could not build C module 'CModbus'
 10 |
 11 | fileprivate let errorValue: Int32 = -1
[22/25] Compiling SwiftyModbus SwiftyModbus.swift
<module-includes>:1:10: note: in file included from <module-includes>:1:
1 | #include "libmodbus.h"
  |          `- note: in file included from <module-includes>:1:
2 |
/host/spi-builder-workspace/Sources/Libmodbus/libmodbus.h:1:9: error: 'modbus.h' file not found
1 | #import <modbus.h>
  |         `- error: 'modbus.h' file not found
2 |
/host/spi-builder-workspace/Sources/SwiftyModbus/SwiftyModbus.swift:9:8: error: could not build C module 'CModbus'
  7 |
  8 | import Foundation
  9 | import CModbus
    |        `- error: could not build C module 'CModbus'
 10 |
 11 | fileprivate let errorValue: Int32 = -1
[23/25] Compiling SwiftyModbus SwiftyModbusResult.swift
<module-includes>:1:10: note: in file included from <module-includes>:1:
1 | #include "libmodbus.h"
  |          `- note: in file included from <module-includes>:1:
2 |
/host/spi-builder-workspace/Sources/Libmodbus/libmodbus.h:1:9: error: 'modbus.h' file not found
1 | #import <modbus.h>
  |         `- error: 'modbus.h' file not found
2 |
/host/spi-builder-workspace/Sources/SwiftyModbus/SwiftyModbus.swift:9:8: error: could not build C module 'CModbus'
  7 |
  8 | import Foundation
  9 | import CModbus
    |        `- error: could not build C module 'CModbus'
 10 |
 11 | fileprivate let errorValue: Int32 = -1
[24/25] Compiling PromiseKit CustomStringConvertible.swift
[25/25] Compiling PromiseKit Error.swift
error: cancelled
error: cancelled
BUILD FAILURE 6.3 android