Swift Package Index

Build Information

Failed to build braze-swift-sdk, reference main (8a4c94), with Swift 6.0 for watchOS using Xcode 16.2 on 20 Apr 2026 14:24:04 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme braze-swift-sdk-Package -destination generic/platform=watchOS

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/braze-inc/braze-swift-sdk-prebuilt-dynamic.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/braze-inc/braze-swift-sdk-prebuilt-dynamic
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 8a4c943 Release 14.1.0
Cloned https://github.com/braze-inc/braze-swift-sdk-prebuilt-dynamic.git
Revision (git rev-parse @):
8a4c9436f2c0dc0b1ffbdd0a5e5e971f4d40d385
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/braze-inc/braze-swift-sdk-prebuilt-dynamic.git at main
========================================
Build
========================================
Selected platform:         watchOS
Swift version:             6.0
Building package at path:  $PWD
https://github.com/braze-inc/braze-swift-sdk-prebuilt-dynamic.git
Command line invocation:
    /Applications/Xcode-16.2.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
Fetching from https://github.com/SDWebImage/SDWebImage.git
Creating working copy of package ‘SDWebImage’
Checking out 5.21.7 of package ‘SDWebImage’
dependency 'sdwebimage' is not used by any targetResolve Package Graph
dependency 'sdwebimage' is not used by any target
Resolved source packages:
  SDWebImage: https://github.com/SDWebImage/SDWebImage.git @ 5.21.7
  braze-swift-sdk: /Users/admin/builder/spi-builder-workspace
resolved source packages: SDWebImage, braze-swift-sdk
{
  "default_localization" : "en",
  "dependencies" : [
    {
      "identity" : "sdwebimage",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "5.19.7",
            "upper_bound" : "6.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/SDWebImage/SDWebImage.git"
    }
  ],
  "manifest_display_name" : "braze-swift-sdk",
  "name" : "braze-swift-sdk",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "12.0"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "12.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "BrazeKit",
      "targets" : [
        "BrazeKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazeUI",
      "targets" : [
        "BrazeUI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazeLocation",
      "targets" : [
        "BrazeLocation"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazeNotificationService",
      "targets" : [
        "BrazeNotificationService"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazePushStory",
      "targets" : [
        "BrazePushStory"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazeKitCompat",
      "targets" : [
        "BrazeKitCompat"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazeUICompat",
      "targets" : [
        "BrazeUICompat"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "BrazeUICompat",
      "module_type" : "BinaryTarget",
      "name" : "BrazeUICompat",
      "path" : "remote/archive/BrazeUICompat.zip",
      "product_memberships" : [
        "BrazeUICompat"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazeUI",
      "module_type" : "BinaryTarget",
      "name" : "BrazeUI",
      "path" : "remote/archive/BrazeUI.zip",
      "product_memberships" : [
        "BrazeUI"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazePushStory",
      "module_type" : "BinaryTarget",
      "name" : "BrazePushStory",
      "path" : "remote/archive/BrazePushStory.zip",
      "product_memberships" : [
        "BrazePushStory"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazeNotificationService",
      "module_type" : "BinaryTarget",
      "name" : "BrazeNotificationService",
      "path" : "remote/archive/BrazeNotificationService.zip",
      "product_memberships" : [
        "BrazeNotificationService"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazeLocation",
      "module_type" : "BinaryTarget",
      "name" : "BrazeLocation",
      "path" : "remote/archive/BrazeLocation.zip",
      "product_memberships" : [
        "BrazeLocation"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazeKitCompat",
      "module_type" : "BinaryTarget",
      "name" : "BrazeKitCompat",
      "path" : "remote/archive/BrazeKitCompat.zip",
      "product_memberships" : [
        "BrazeKitCompat"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazeKit",
      "module_type" : "BinaryTarget",
      "name" : "BrazeKit",
      "path" : "remote/archive/BrazeKit.zip",
      "product_memberships" : [
        "BrazeKit"
      ],
      "sources" : [
      ],
      "type" : "binary"
    }
  ],
  "tools_version" : "5.10"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "braze-swift-sdk-Package",
      "BrazeKit",
      "BrazeKitCompat",
      "BrazeLocation",
      "BrazeNotificationService",
      "BrazePushStory",
      "BrazeUI",
      "BrazeUICompat"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme braze-swift-sdk-Package -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-16.2.0.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 braze-swift-sdk-Package -destination generic/platform=watchOS
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/admin/builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
dependency 'sdwebimage' is not used by any target
Resolve Package Graph
dependency 'sdwebimage' is not used by any target
Resolved source packages:
  braze-swift-sdk: /Users/admin/builder/spi-builder-workspace
  SDWebImage: https://github.com/SDWebImage/SDWebImage.git @ 5.21.7
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (7 targets)
    Target 'BrazeUICompat' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazeUI' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazePushStory' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazeNotificationService' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazeLocation' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazeKitCompat' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazeKit' in project 'braze-swift-sdk' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x c -c /dev/null
Build description signature: 29d675d67478c98820805fd58ab3ff74
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/29d675d67478c98820805fd58ab3ff74.xcbuilddata
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeKit/BrazeKit.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/BrazeKit/BrazeKit.xcframework'. (in target 'BrazeKit' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeKitCompat/BrazeKitCompat.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/BrazeKitCompat/BrazeKitCompat.xcframework'. (in target 'BrazeKitCompat' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazePushStory/BrazePushStory.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/BrazePushStory/BrazePushStory.xcframework'. (in target 'BrazePushStory' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeUI/BrazeUI.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/BrazeUI/BrazeUI.xcframework'. (in target 'BrazeUI' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeLocation/BrazeLocation.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/BrazeLocation/BrazeLocation.xcframework'. (in target 'BrazeLocation' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeUICompat/BrazeUICompat.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/BrazeUICompat/BrazeUICompat.xcframework'. (in target 'BrazeUICompat' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeNotificationService/BrazeNotificationService.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/BrazeNotificationService/BrazeNotificationService.xcframework'. (in target 'BrazeNotificationService' from project 'braze-swift-sdk')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme braze-swift-sdk-Package
(1 failure)
Command line invocation:
    /Applications/Xcode-16.2.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
dependency 'sdwebimage' is not used by any target
Resolved source packages:
  braze-swift-sdk: /Users/admin/builder/spi-builder-workspace
  SDWebImage: https://github.com/SDWebImage/SDWebImage.git @ 5.21.7
resolved source packages: braze-swift-sdk, SDWebImage
{
  "default_localization" : "en",
  "dependencies" : [
    {
      "identity" : "sdwebimage",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "5.19.7",
            "upper_bound" : "6.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/SDWebImage/SDWebImage.git"
    }
  ],
  "manifest_display_name" : "braze-swift-sdk",
  "name" : "braze-swift-sdk",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "12.0"
    },
    {
      "name" : "maccatalyst",
      "version" : "13.0"
    },
    {
      "name" : "tvos",
      "version" : "12.0"
    },
    {
      "name" : "visionos",
      "version" : "1.0"
    }
  ],
  "products" : [
    {
      "name" : "BrazeKit",
      "targets" : [
        "BrazeKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazeUI",
      "targets" : [
        "BrazeUI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazeLocation",
      "targets" : [
        "BrazeLocation"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazeNotificationService",
      "targets" : [
        "BrazeNotificationService"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazePushStory",
      "targets" : [
        "BrazePushStory"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazeKitCompat",
      "targets" : [
        "BrazeKitCompat"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "BrazeUICompat",
      "targets" : [
        "BrazeUICompat"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "BrazeUICompat",
      "module_type" : "BinaryTarget",
      "name" : "BrazeUICompat",
      "path" : "remote/archive/BrazeUICompat.zip",
      "product_memberships" : [
        "BrazeUICompat"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazeUI",
      "module_type" : "BinaryTarget",
      "name" : "BrazeUI",
      "path" : "remote/archive/BrazeUI.zip",
      "product_memberships" : [
        "BrazeUI"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazePushStory",
      "module_type" : "BinaryTarget",
      "name" : "BrazePushStory",
      "path" : "remote/archive/BrazePushStory.zip",
      "product_memberships" : [
        "BrazePushStory"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazeNotificationService",
      "module_type" : "BinaryTarget",
      "name" : "BrazeNotificationService",
      "path" : "remote/archive/BrazeNotificationService.zip",
      "product_memberships" : [
        "BrazeNotificationService"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazeLocation",
      "module_type" : "BinaryTarget",
      "name" : "BrazeLocation",
      "path" : "remote/archive/BrazeLocation.zip",
      "product_memberships" : [
        "BrazeLocation"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazeKitCompat",
      "module_type" : "BinaryTarget",
      "name" : "BrazeKitCompat",
      "path" : "remote/archive/BrazeKitCompat.zip",
      "product_memberships" : [
        "BrazeKitCompat"
      ],
      "sources" : [
      ],
      "type" : "binary"
    },
    {
      "c99name" : "BrazeKit",
      "module_type" : "BinaryTarget",
      "name" : "BrazeKit",
      "path" : "remote/archive/BrazeKit.zip",
      "product_memberships" : [
        "BrazeKit"
      ],
      "sources" : [
      ],
      "type" : "binary"
    }
  ],
  "tools_version" : "5.10"
}
{
  "workspace" : {
    "name" : "spi-builder-workspace",
    "schemes" : [
      "braze-swift-sdk-Package",
      "BrazeKit",
      "BrazeKitCompat",
      "BrazeLocation",
      "BrazeNotificationService",
      "BrazePushStory",
      "BrazeUI",
      "BrazeUICompat"
    ]
  }
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme braze-swift-sdk-Package -destination generic/platform=watchOS
Command line invocation:
    /Applications/Xcode-16.2.0.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 braze-swift-sdk-Package -destination generic/platform=watchOS
User defaults from command line:
    IDEClonedSourcePackagesDirPathOverride = /Users/admin/builder/spi-builder-workspace/.dependencies
    IDEDerivedDataPathOverride = /Users/admin/builder/spi-builder-workspace/.derivedData
    IDEPackageSupportUseBuiltinSCM = YES
Resolve Package Graph
dependency 'sdwebimage' is not used by any target
Resolved source packages:
  SDWebImage: https://github.com/SDWebImage/SDWebImage.git @ 5.21.7
  braze-swift-sdk: /Users/admin/builder/spi-builder-workspace
Prepare packages
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (7 targets)
    Target 'BrazeUICompat' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazeUI' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazePushStory' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazeNotificationService' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazeLocation' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazeKitCompat' in project 'braze-swift-sdk' (no dependencies)
    Target 'BrazeKit' in project 'braze-swift-sdk' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-16.2.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-16.2.0.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS11.2.sdk -x c -c /dev/null
Build description signature: 29d675d67478c98820805fd58ab3ff74
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/29d675d67478c98820805fd58ab3ff74.xcbuilddata
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeUI/BrazeUI.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/BrazeUI/BrazeUI.xcframework'. (in target 'BrazeUI' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeKit/BrazeKit.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/BrazeKit/BrazeKit.xcframework'. (in target 'BrazeKit' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazePushStory/BrazePushStory.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/BrazePushStory/BrazePushStory.xcframework'. (in target 'BrazePushStory' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeUICompat/BrazeUICompat.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/BrazeUICompat/BrazeUICompat.xcframework'. (in target 'BrazeUICompat' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeLocation/BrazeLocation.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/BrazeLocation/BrazeLocation.xcframework'. (in target 'BrazeLocation' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeKitCompat/BrazeKitCompat.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/BrazeKitCompat/BrazeKitCompat.xcframework'. (in target 'BrazeKitCompat' from project 'braze-swift-sdk')
/Users/admin/builder/spi-builder-workspace/.dependencies/artifacts/spi-builder-workspace/BrazeNotificationService/BrazeNotificationService.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/BrazeNotificationService/BrazeNotificationService.xcframework'. (in target 'BrazeNotificationService' from project 'braze-swift-sdk')
** BUILD FAILED **
The following build commands failed:
	Building workspace spi-builder-workspace with scheme braze-swift-sdk-Package
(1 failure)
BUILD FAILURE 6.0 watchOS