Swift Package Index

Build Information

Failed to build MailCore2, reference master (e512ab), with Swift 6.4 for watchOS using Xcode 27.0 on 9 Oct 2026 08:54:00 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 MailCore2 -destination generic/platform=watchOS

Build Log

========================================
RunAll
========================================
Builder version: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/MailCore/mailcore2.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/MailCore/mailcore2
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at e512ab5 Simplify ActiveSync public API
Submodule path 'deps/ctemplate': checked out 'd004783679560176f501998fd620f50acfc233f0'
Submodule path 'deps/libetpan': checked out '6dc099a813344ee9c48009d70a78016ae838afcc'
Submodule path 'deps/tidy-html5': checked out '10c3674befa76f0f8c56e2944959a0ba9e1ef638'
Submodule 'deps/ctemplate' (https://github.com/dinhviethoa/ctemplate) registered for path 'deps/ctemplate'
Submodule 'deps/libetpan' (https://github.com/dinhviethoa/libetpan.git) registered for path 'deps/libetpan'
Submodule 'deps/tidy-html5' (https://github.com/dinhvh/tidy-html5.git) registered for path 'deps/tidy-html5'
Cloning into '/Users/admin/builder/spi-builder-workspace/deps/ctemplate'...
Cloning into '/Users/admin/builder/spi-builder-workspace/deps/libetpan'...
Cloning into '/Users/admin/builder/spi-builder-workspace/deps/tidy-html5'...
Cloned https://github.com/MailCore/mailcore2.git
Revision (git rev-parse @):
e512ab51f43c5f682c8ce7ede5c4bdfd89194677
SUCCESS checkout https://github.com/MailCore/mailcore2.git at master
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.4
Building package at path:  $PWD
https://github.com/MailCore/mailcore2.git
Command line invocation:
    /Applications/Xcode-27.0.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
  MailCore2: /Users/admin/builder/spi-builder-workspace
resolved source packages: MailCore2
2026-10-09 04:53:10.796 xcodebuild[561:3165] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MailCore2",
  "name" : "MailCore2",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "9.0"
    },
    {
      "name" : "macos",
      "version" : "10.10"
    }
  ],
  "products" : [
    {
      "name" : "MailCore2",
      "targets" : [
        "MailCore2"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MailCore2",
      "module_type" : "BinaryTarget",
      "name" : "MailCore2",
      "path" : "remote/archive/MailCore2-2020-09-24.xcframework.zip",
      "product_memberships" : [
        "MailCore2"
      ],
      "sources" : [
      ],
      "type" : "binary"
    }
  ],
  "tools_version" : "5.3"
}
{
  "workspace" : {
    "name" : "MailCore2",
    "schemes" : [
      "MailCore2"
    ]
  }
}
2026-10-09 04:53:53.863 xcodebuild[787:4873] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme MailCore2 -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-27.0.0.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 MailCore2 -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  MailCore2: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'MailCore2-product' in project 'MailCore2' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-27.0.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-27.0.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS27.0.sdk -x c -c /dev/null
Build description signature: 90d0f65c2ec589c65f06e7dc331c28c7
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/90d0f65c2ec589c65f06e7dc331c28c7.xcbuilddata
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/MailCore2/MailCore2.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/MailCore2/MailCore2.xcframework'. (in target 'MailCore2-product' from project 'MailCore2')
2026-10-09 04:53:55.822 xcodebuild[788:4915] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace MailCore2 with scheme MailCore2
(1 failure)
Command line invocation:
    /Applications/Xcode-27.0.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
  MailCore2: /Users/admin/builder/spi-builder-workspace
resolved source packages: MailCore2
2026-10-09 04:53:57.699 xcodebuild[803:5021] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "MailCore2",
  "name" : "MailCore2",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "9.0"
    },
    {
      "name" : "macos",
      "version" : "10.10"
    }
  ],
  "products" : [
    {
      "name" : "MailCore2",
      "targets" : [
        "MailCore2"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "MailCore2",
      "module_type" : "BinaryTarget",
      "name" : "MailCore2",
      "path" : "remote/archive/MailCore2-2020-09-24.xcframework.zip",
      "product_memberships" : [
        "MailCore2"
      ],
      "sources" : [
      ],
      "type" : "binary"
    }
  ],
  "tools_version" : "5.3"
}
{
  "workspace" : {
    "name" : "MailCore2",
    "schemes" : [
      "MailCore2"
    ]
  }
}
2026-10-09 04:53:59.133 xcodebuild[811:5083] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
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 MailCore2 -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-27.0.0.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 MailCore2 -destination generic/platform=watchOS
Resolve Package Graph
Resolved source packages:
  MailCore2: /Users/admin/builder/spi-builder-workspace
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (1 target)
    Target 'MailCore2-product' in project 'MailCore2' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/MailCore2/MailCore2.xcframework:1:1: error: While building for watchOS, no library for this platform was found in '/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/MailCore2/MailCore2.xcframework'. (in target 'MailCore2-product' from project 'MailCore2')
2026-10-09 04:54:00.324 xcodebuild[812:5108] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
	Building workspace MailCore2 with scheme MailCore2
(1 failure)
BUILD FAILURE 6.4 watchOS