Swift Package Index

Build Information

Failed to build Mqtt, reference 0.3.0 (2af558), with Swift 6.4 for iOS using Xcode 27.0 on 16 Sep 2026 07:21:54 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Mqtt-Package -destination generic/platform=iOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/hjianbo/mqtt.git
Reference: 0.3.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/hjianbo/mqtt
 * tag               0.3.0      -> FETCH_HEAD
HEAD is now at 2af5589 Merge branch 'dev'
Cloned https://github.com/hjianbo/mqtt.git
Revision (git rev-parse @):
2af55898db7cccfc12accfd0a15fe4ecbf9fa579
SUCCESS checkout https://github.com/hjianbo/mqtt.git at 0.3.0
========================================
Build
========================================
Selected platform:         iOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/hjianbo/mqtt.git
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
{
  "dependencies" : [
    {
      "identity" : "sockets",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.2.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/vapor/sockets"
    }
  ],
  "manifest_display_name" : "Mqtt",
  "name" : "Mqtt",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Mqtt",
      "targets" : [
        "Mqtt"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MqttTests",
      "module_type" : "SwiftTarget",
      "name" : "MqttTests",
      "path" : "Tests/MqttTests",
      "sources" : [
        "MqttClientTests.swift",
        "MqttPacketTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Mqtt"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Mqtt",
      "module_type" : "SwiftTarget",
      "name" : "Mqtt",
      "path" : "Sources/Mqtt",
      "product_dependencies" : [
        "Sockets"
      ],
      "product_memberships" : [
        "Mqtt"
      ],
      "sources" : [
        "DDLog.swift",
        "Extension.swift",
        "LocalStorage.swift",
        "MqttClient.swift",
        "Packet/ConnAckPacket.swift",
        "Packet/ConnectPacket.swift",
        "Packet/DisconnectPacket.swift",
        "Packet/Packet.swift",
        "Packet/PingReqPacket.swift",
        "Packet/PingRespPacket.swift",
        "Packet/PubAckPacket.swift",
        "Packet/PubCompPacket.swift",
        "Packet/PubRecPacket.swift",
        "Packet/PubRelPacket.swift",
        "Packet/PublishPacket.swift",
        "Packet/SubAckPacket.swift",
        "Packet/SubscribePacket.swift",
        "Packet/UnsubAckPacket.swift",
        "Packet/UnsubscribePacket.swift",
        "Session/Session.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Sources/Mqtt/Examples': File not found.
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Mqtt",
    "schemes" : [
      "BitsPackageDescription",
      "CorePackageDescription",
      "DebuggingPackageDescription",
      "Mqtt-Package",
      "MqttPackageDescription",
      "MqttPackageTests",
      "SocketsPackageDescription"
    ],
    "targets" : [
      "MqttPackageDescription",
      "SocketsPackageDescription",
      "CorePackageDescription",
      "DebuggingPackageDescription",
      "BitsPackageDescription",
      "MqttTests",
      "Mqtt",
      "Sockets",
      "Transport",
      "Core",
      "Debugging",
      "Bits",
      "libc",
      "MqttPackageTests"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Mqtt-Package -destination generic/platform=iOS
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Mqtt-Package -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (7 targets)
    Target 'Mqtt' in project 'Mqtt'
        ➜ Explicit dependency on target 'Sockets' in project 'Mqtt'
        ➜ Explicit dependency on target 'Transport' in project 'Mqtt'
        ➜ Explicit dependency on target 'Core' in project 'Mqtt'
        ➜ Explicit dependency on target 'Debugging' in project 'Mqtt'
        ➜ Explicit dependency on target 'Bits' in project 'Mqtt'
        ➜ Explicit dependency on target 'libc' in project 'Mqtt'
    Target 'Sockets' in project 'Mqtt'
        ➜ Explicit dependency on target 'Transport' in project 'Mqtt'
        ➜ Explicit dependency on target 'Core' in project 'Mqtt'
        ➜ Explicit dependency on target 'Debugging' in project 'Mqtt'
        ➜ Explicit dependency on target 'Bits' in project 'Mqtt'
        ➜ Explicit dependency on target 'libc' in project 'Mqtt'
    Target 'Transport' in project 'Mqtt'
        ➜ Explicit dependency on target 'Core' in project 'Mqtt'
        ➜ Explicit dependency on target 'Debugging' in project 'Mqtt'
        ➜ Explicit dependency on target 'Bits' in project 'Mqtt'
        ➜ Explicit dependency on target 'libc' in project 'Mqtt'
    Target 'Core' in project 'Mqtt'
        ➜ Explicit dependency on target 'Debugging' in project 'Mqtt'
        ➜ Explicit dependency on target 'Bits' in project 'Mqtt'
        ➜ Explicit dependency on target 'libc' in project 'Mqtt'
    Target 'libc' in project 'Mqtt' (no dependencies)
    Target 'Bits' in project 'Mqtt' (no dependencies)
    Target 'Debugging' in project 'Mqtt' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS27.0.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: c8af7666feec13d9c6d3b034757da8c0
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/c8af7666feec13d9c6d3b034757da8c0.xcbuilddata
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Debugging' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Transport' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'libc' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Core' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Sockets' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Bits' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Mqtt' from project 'Mqtt')
** BUILD FAILED **
The following build commands failed:
	Building project Mqtt with scheme Mqtt-Package
(1 failure)
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
resolved source packages:
{
  "dependencies" : [
    {
      "identity" : "sockets",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "2.2.0",
            "upper_bound" : "3.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/vapor/sockets"
    }
  ],
  "manifest_display_name" : "Mqtt",
  "name" : "Mqtt",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "Mqtt",
      "targets" : [
        "Mqtt"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MqttTests",
      "module_type" : "SwiftTarget",
      "name" : "MqttTests",
      "path" : "Tests/MqttTests",
      "sources" : [
        "MqttClientTests.swift",
        "MqttPacketTests.swift",
        "XCTestManifests.swift"
      ],
      "target_dependencies" : [
        "Mqtt"
      ],
      "type" : "test"
    },
    {
      "c99name" : "Mqtt",
      "module_type" : "SwiftTarget",
      "name" : "Mqtt",
      "path" : "Sources/Mqtt",
      "product_dependencies" : [
        "Sockets"
      ],
      "product_memberships" : [
        "Mqtt"
      ],
      "sources" : [
        "DDLog.swift",
        "Extension.swift",
        "LocalStorage.swift",
        "MqttClient.swift",
        "Packet/ConnAckPacket.swift",
        "Packet/ConnectPacket.swift",
        "Packet/DisconnectPacket.swift",
        "Packet/Packet.swift",
        "Packet/PingReqPacket.swift",
        "Packet/PingRespPacket.swift",
        "Packet/PubAckPacket.swift",
        "Packet/PubCompPacket.swift",
        "Packet/PubRecPacket.swift",
        "Packet/PubRelPacket.swift",
        "Packet/PublishPacket.swift",
        "Packet/SubAckPacket.swift",
        "Packet/SubscribePacket.swift",
        "Packet/UnsubAckPacket.swift",
        "Packet/UnsubscribePacket.swift",
        "Session/Session.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "4.0"
}
warning: 'spi-builder-workspace': Invalid Exclude '/Users/admin/builder/spi-builder-workspace/Sources/Mqtt/Examples': File not found.
{
  "project" : {
    "configurations" : [
      "Debug",
      "Release"
    ],
    "name" : "Mqtt",
    "schemes" : [
      "BitsPackageDescription",
      "CorePackageDescription",
      "DebuggingPackageDescription",
      "Mqtt-Package",
      "MqttPackageDescription",
      "MqttPackageTests",
      "SocketsPackageDescription"
    ],
    "targets" : [
      "MqttPackageDescription",
      "SocketsPackageDescription",
      "CorePackageDescription",
      "DebuggingPackageDescription",
      "BitsPackageDescription",
      "MqttTests",
      "Mqtt",
      "Sockets",
      "Transport",
      "Core",
      "Debugging",
      "Bits",
      "libc",
      "MqttPackageTests"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Mqtt-Package -destination generic/platform=iOS
Command line invocation:
    /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath /Users/admin/builder/spi-builder-workspace/.derivedData build -scheme Mqtt-Package -destination generic/platform=iOS
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (7 targets)
    Target 'Mqtt' in project 'Mqtt'
        ➜ Explicit dependency on target 'Sockets' in project 'Mqtt'
        ➜ Explicit dependency on target 'Transport' in project 'Mqtt'
        ➜ Explicit dependency on target 'Core' in project 'Mqtt'
        ➜ Explicit dependency on target 'Debugging' in project 'Mqtt'
        ➜ Explicit dependency on target 'Bits' in project 'Mqtt'
        ➜ Explicit dependency on target 'libc' in project 'Mqtt'
    Target 'Sockets' in project 'Mqtt'
        ➜ Explicit dependency on target 'Transport' in project 'Mqtt'
        ➜ Explicit dependency on target 'Core' in project 'Mqtt'
        ➜ Explicit dependency on target 'Debugging' in project 'Mqtt'
        ➜ Explicit dependency on target 'Bits' in project 'Mqtt'
        ➜ Explicit dependency on target 'libc' in project 'Mqtt'
    Target 'Transport' in project 'Mqtt'
        ➜ Explicit dependency on target 'Core' in project 'Mqtt'
        ➜ Explicit dependency on target 'Debugging' in project 'Mqtt'
        ➜ Explicit dependency on target 'Bits' in project 'Mqtt'
        ➜ Explicit dependency on target 'libc' in project 'Mqtt'
    Target 'Core' in project 'Mqtt'
        ➜ Explicit dependency on target 'Debugging' in project 'Mqtt'
        ➜ Explicit dependency on target 'Bits' in project 'Mqtt'
        ➜ Explicit dependency on target 'libc' in project 'Mqtt'
    Target 'libc' in project 'Mqtt' (no dependencies)
    Target 'Bits' in project 'Mqtt' (no dependencies)
    Target 'Debugging' in project 'Mqtt' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Mqtt' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Transport' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Bits' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Sockets' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Core' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'libc' from project 'Mqtt')
/Users/admin/builder/spi-builder-workspace/Mqtt.xcodeproj: error: The iOS deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 15.0 to 27.0.x. (in target 'Debugging' from project 'Mqtt')
** BUILD FAILED **
The following build commands failed:
	Building project Mqtt with scheme Mqtt-Package
(1 failure)
BUILD FAILURE 6.4 iOS