Swift Package Index

Build Information

Failed to build SwiftyModbus, reference 2.2.1 (444406), with Swift 6.2 (beta) for macOS (SPM) on 20 Jun 2025 08:12:00 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun swift build --arch arm64

Build Log

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RunAll
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Builder version: 4.64.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/DimaRU/SwiftyModbus.git
Reference: 2.2.1
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
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
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Build
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Selected platform:         macosSpm
Swift version:             6.2
Building package at path:  $PWD
https://github.com/DimaRU/SwiftyModbus.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.0.0-Beta.app xcrun swift build --arch arm64
Building for debugging...
[0/4] Write sources
[3/4] Write swift-version-1EA4D86E10B52AF.txt
[5/24] Compiling PromiseKit Configuration.swift
[6/24] Compiling PromiseKit CustomStringConvertible.swift
[7/24] Compiling PromiseKit Async.swift
[8/24] Compiling PromiseKit Box.swift
[9/24] Emitting module PromiseKit
[10/24] Compiling PromiseKit Catchable.swift
[11/24] Compiling PromiseKit Combine.swift
[12/25] Compiling PromiseKit LogEvent.swift
[13/25] Compiling PromiseKit Promise.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[14/25] Emitting module SwiftyModbus
<module-includes>:1:9: note: in file included from <module-includes>:1:
1 | #import "libmodbus.h"
  |         `- note: in file included from <module-includes>:1:
2 |
/Users/admin/builder/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 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyModbus/SwiftyModbus.swift:9:8: error: could not build Objective-C module 'CModbus'
  7 |
  8 | import Foundation
  9 | import CModbus
    |        `- error: could not build Objective-C module 'CModbus'
 10 |
 11 | fileprivate let errorValue: Int32 = -1
[15/25] Compiling SwiftyModbus SwiftyModbusResult.swift
<module-includes>:1:9: note: in file included from <module-includes>:1:
1 | #import "libmodbus.h"
  |         `- note: in file included from <module-includes>:1:
2 |
/Users/admin/builder/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 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyModbus/SwiftyModbus.swift:9:8: error: could not build Objective-C module 'CModbus'
  7 |
  8 | import Foundation
  9 | import CModbus
    |        `- error: could not build Objective-C module 'CModbus'
 10 |
 11 | fileprivate let errorValue: Int32 = -1
[16/25] Compiling SwiftyModbus SwiftyModbus.swift
<module-includes>:1:9: note: in file included from <module-includes>:1:
1 | #import "libmodbus.h"
  |         `- note: in file included from <module-includes>:1:
2 |
/Users/admin/builder/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 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftyModbus/SwiftyModbus.swift:9:8: error: could not build Objective-C module 'CModbus'
  7 |
  8 | import Foundation
  9 | import CModbus
    |        `- error: could not build Objective-C module 'CModbus'
 10 |
 11 | fileprivate let errorValue: Int32 = -1
Fetching https://github.com/mxcl/PromiseKit.git
[1/17186] Fetching promisekit
Fetched https://github.com/mxcl/PromiseKit.git from cache (1.73s)
Computing version for https://github.com/mxcl/PromiseKit.git
Computed https://github.com/mxcl/PromiseKit.git at 6.22.1 (2.30s)
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: failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: you may be able to install libmodbus using your system-packager:
    brew install libmodbus
warning: you may be able to install libmodbus using your system-packager:
    brew install libmodbus
BUILD FAILURE 6.2 macosSpm