Swift Package IndexBuild Information
Failed to build Ergo, reference main (dc983e), with Swift 6.3 for iOS using Xcode 26.4 on 17 Apr 2026 08:42:55 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Ergo -destination generic/platform=iOSBuild Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Fleuronic/Ergo.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Fleuronic/Ergo
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at dc983e3 Upiahe .gitmodules
Submodule path 'Submodules/ErgoAppKit': checked out '57790f02c06164c5aa74035fb0953bbe09caeddc'
Submodule path 'Submodules/ErgoDeclarativeUIKit': checked out 'f595a661f59f1b723b1d5f6e94f2564aefcf3346'
Submodule path 'Submodules/ErgoUIKit': checked out '5197af0956b294008c73db07c657239597defb4b'
Submodule 'ErgoAppKit' (https://github.com/Fleuronic/ErgoAppKit) registered for path 'Submodules/ErgoAppKit'
Submodule 'ErgoDeclarativeUIKit' (https://github.com/Fleuronic/ErgoDeclarativeUIKit) registered for path 'Submodules/ErgoDeclarativeUIKit'
Submodule 'ErgoUIKit' (https://github.com/Fleuronic/ErgoUIKit) registered for path 'Submodules/ErgoUIKit'
Cloning into '/Users/admin/builder/spi-builder-workspace/Submodules/ErgoAppKit'...
Cloning into '/Users/admin/builder/spi-builder-workspace/Submodules/ErgoDeclarativeUIKit'...
Cloning into '/Users/admin/builder/spi-builder-workspace/Submodules/ErgoUIKit'...
Cloned https://github.com/Fleuronic/Ergo.git
Revision (git rev-parse @):
dc983e3a690ecb3f6dfd7f2f6d4c051b47907691
SUCCESS checkout https://github.com/Fleuronic/Ergo.git at main
========================================
Build
========================================
Selected platform: iOS
Swift version: 6.3
Building package at path: $PWD
https://github.com/Fleuronic/Ergo.git
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Fetching from https://github.com/jordanekay/workflow-swift
Fetching from https://github.com/ReactiveCocoa/ReactiveSwift.git
Fetching from https://github.com/pointfreeco/swift-custom-dump
Fetching from https://github.com/pointfreeco/swift-case-paths
Fetching from https://github.com/pointfreeco/swift-identified-collections
Fetching from https://github.com/swiftlang/swift-syntax
Fetching from https://github.com/apple/swift-collections
Fetching from https://github.com/pointfreeco/xctest-dynamic-overlay
Creating working copy of package ‘swift-syntax’
Checking out 600.0.1 of package ‘swift-syntax’
Creating working copy of package ‘swift-custom-dump’
Checking out 1.5.0 of package ‘swift-custom-dump’
Creating working copy of package ‘xctest-dynamic-overlay’
Checking out 1.9.0 of package ‘xctest-dynamic-overlay’
Creating working copy of package ‘swift-case-paths’
Checking out 1.7.3 of package ‘swift-case-paths’
Creating working copy of package ‘ReactiveSwift’
Checking out swift-concurrency (3d40187) of package ‘ReactiveSwift’
Creating working copy of package ‘swift-identified-collections’
Checking out 1.1.1 of package ‘swift-identified-collections’
Creating working copy of package ‘swift-collections’
Checking out 1.4.1 of package ‘swift-collections’
Creating working copy of package ‘workflow-swift’
Checking out main (34a92f7) of package ‘workflow-swift’
Resolve Package Graph
Resolved source packages:
Ergo: /Users/admin/builder/spi-builder-workspace
swift-case-paths: https://github.com/pointfreeco/swift-case-paths @ 1.7.3
swift-collections: https://github.com/apple/swift-collections @ 1.4.1
swift-syntax: https://github.com/swiftlang/swift-syntax @ 600.0.1
xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 1.9.0
Workflow: https://github.com/jordanekay/workflow-swift @ main (34a92f7)
swift-identified-collections: https://github.com/pointfreeco/swift-identified-collections @ 1.1.1
swift-custom-dump: https://github.com/pointfreeco/swift-custom-dump @ 1.5.0
ReactiveSwift: https://github.com/ReactiveCocoa/ReactiveSwift.git @ swift-concurrency (3d40187)
resolved source packages: Ergo, swift-case-paths, swift-collections, swift-syntax, xctest-dynamic-overlay, Workflow, swift-identified-collections, swift-custom-dump, ReactiveSwift
2026-04-17 04:42:33.798 xcodebuild[559:3141] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "workflow-swift",
"requirement" : {
"branch" : [
"main"
]
},
"type" : "sourceControl",
"url" : "https://github.com/jordanekay/workflow-swift"
}
],
"manifest_display_name" : "Ergo",
"name" : "Ergo",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "13.0"
},
{
"name" : "macos",
"version" : "14.0"
},
{
"name" : "tvos",
"version" : "13.0"
},
{
"name" : "watchos",
"version" : "6.0"
}
],
"products" : [
{
"name" : "Ergo",
"targets" : [
"Ergo"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"swift_languages_versions" : [
"6"
],
"targets" : [
{
"c99name" : "Ergo",
"module_type" : "SwiftTarget",
"name" : "Ergo",
"path" : "Sources/Ergo",
"product_dependencies" : [
"WorkflowReactiveSwift"
],
"product_memberships" : [
"Ergo"
],
"sources" : [
"SideEffect.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "spi-builder-workspace",
"schemes" : [
"Ergo"
]
}
}
2026-04-17 04:42:42.302 xcodebuild[1072:5728] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Ergo -destination generic/platform=iOS
Command line invocation:
/Applications/Xcode-26.4.0.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 Ergo -destination generic/platform=iOS
Resolve Package Graph
Resolve Package Graph
Resolved source packages:
Ergo: /Users/admin/builder/spi-builder-workspace
swift-custom-dump: https://github.com/pointfreeco/swift-custom-dump @ 1.5.0
swift-case-paths: https://github.com/pointfreeco/swift-case-paths @ 1.7.3
ReactiveSwift: https://github.com/ReactiveCocoa/ReactiveSwift.git @ swift-concurrency (3d40187)
swift-collections: https://github.com/apple/swift-collections @ 1.4.1
swift-syntax: https://github.com/swiftlang/swift-syntax @ 600.0.1
Workflow: https://github.com/jordanekay/workflow-swift @ main (34a92f7)
xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 1.9.0
swift-identified-collections: https://github.com/pointfreeco/swift-identified-collections @ 1.1.1
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (7 targets)
Target 'Ergo' in project 'Ergo'
➜ Explicit dependency on target 'Ergo' in project 'Ergo'
➜ Explicit dependency on target 'WorkflowReactiveSwift' in project 'Workflow'
Target 'Ergo' in project 'Ergo'
➜ Explicit dependency on target 'WorkflowReactiveSwift' in project 'Workflow'
Target 'WorkflowReactiveSwift' in project 'Workflow'
➜ Explicit dependency on target 'WorkflowReactiveSwift' in project 'Workflow'
➜ Explicit dependency on target 'Workflow' in project 'Workflow'
➜ Explicit dependency on target 'ReactiveSwift' in project 'ReactiveSwift'
Target 'WorkflowReactiveSwift' in project 'Workflow'
➜ Explicit dependency on target 'Workflow' in project 'Workflow'
➜ Explicit dependency on target 'ReactiveSwift' in project 'ReactiveSwift'
Target 'Workflow' in project 'Workflow'
➜ Explicit dependency on target 'ReactiveSwift' in project 'ReactiveSwift'
Target 'ReactiveSwift' in project 'ReactiveSwift'
➜ Explicit dependency on target 'ReactiveSwift' in project 'ReactiveSwift'
Target 'ReactiveSwift' in project 'ReactiveSwift' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: aa72f976ad69449de0ad6e5efd4ea717
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/aa72f976ad69449de0ad6e5efd4ea717.xcbuilddata
error: The package product 'WorkflowReactiveSwift' requires minimum platform version 17.0 for the iOS platform, but this target supports 13.0 (in target 'Ergo' from project 'Ergo')
2026-04-17 04:42:47.943 xcodebuild[1104:5872] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
Building workspace spi-builder-workspace with scheme Ergo
(1 failure)
Command line invocation:
/Applications/Xcode-26.4.0.app/Contents/Developer/usr/bin/xcodebuild -IDEClonedSourcePackagesDirPathOverride=/Users/admin/builder/spi-builder-workspace/.dependencies -resolvePackageDependencies
Resolve Package Graph
Resolved source packages:
xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 1.9.0
ReactiveSwift: https://github.com/ReactiveCocoa/ReactiveSwift.git @ swift-concurrency (3d40187)
swift-syntax: https://github.com/swiftlang/swift-syntax @ 600.0.1
Ergo: /Users/admin/builder/spi-builder-workspace
Workflow: https://github.com/jordanekay/workflow-swift @ main (34a92f7)
swift-collections: https://github.com/apple/swift-collections @ 1.4.1
swift-identified-collections: https://github.com/pointfreeco/swift-identified-collections @ 1.1.1
swift-custom-dump: https://github.com/pointfreeco/swift-custom-dump @ 1.5.0
swift-case-paths: https://github.com/pointfreeco/swift-case-paths @ 1.7.3
resolved source packages: xctest-dynamic-overlay, ReactiveSwift, swift-syntax, Ergo, Workflow, swift-collections, swift-identified-collections, swift-custom-dump, swift-case-paths
2026-04-17 04:42:51.169 xcodebuild[1240:6487] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
{
"dependencies" : [
{
"identity" : "workflow-swift",
"requirement" : {
"branch" : [
"main"
]
},
"type" : "sourceControl",
"url" : "https://github.com/jordanekay/workflow-swift"
}
],
"manifest_display_name" : "Ergo",
"name" : "Ergo",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "13.0"
},
{
"name" : "macos",
"version" : "14.0"
},
{
"name" : "tvos",
"version" : "13.0"
},
{
"name" : "watchos",
"version" : "6.0"
}
],
"products" : [
{
"name" : "Ergo",
"targets" : [
"Ergo"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"swift_languages_versions" : [
"6"
],
"targets" : [
{
"c99name" : "Ergo",
"module_type" : "SwiftTarget",
"name" : "Ergo",
"path" : "Sources/Ergo",
"product_dependencies" : [
"WorkflowReactiveSwift"
],
"product_memberships" : [
"Ergo"
],
"sources" : [
"SideEffect.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
{
"workspace" : {
"name" : "spi-builder-workspace",
"schemes" : [
"Ergo"
]
}
}
2026-04-17 04:42:52.799 xcodebuild[1275:6645] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-26.4.0.app xcrun xcodebuild -IDEClonedSourcePackagesDirPathOverride=$PWD/.dependencies -skipMacroValidation -skipPackagePluginValidation -derivedDataPath $PWD/.derivedData build -scheme Ergo -destination generic/platform=iOS
Command line invocation:
/Applications/Xcode-26.4.0.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 Ergo -destination generic/platform=iOS
Resolve Package Graph
Resolved source packages:
ReactiveSwift: https://github.com/ReactiveCocoa/ReactiveSwift.git @ swift-concurrency (3d40187)
swift-custom-dump: https://github.com/pointfreeco/swift-custom-dump @ 1.5.0
swift-identified-collections: https://github.com/pointfreeco/swift-identified-collections @ 1.1.1
swift-case-paths: https://github.com/pointfreeco/swift-case-paths @ 1.7.3
Workflow: https://github.com/jordanekay/workflow-swift @ main (34a92f7)
Ergo: /Users/admin/builder/spi-builder-workspace
swift-syntax: https://github.com/swiftlang/swift-syntax @ 600.0.1
xctest-dynamic-overlay: https://github.com/pointfreeco/xctest-dynamic-overlay @ 1.9.0
swift-collections: https://github.com/apple/swift-collections @ 1.4.1
ComputePackagePrebuildTargetDependencyGraph
Prepare packages
CreateBuildRequest
SendProjectDescription
CreateBuildOperation
ComputeTargetDependencyGraph
note: Building targets in dependency order
note: Target dependency graph (7 targets)
Target 'Ergo' in project 'Ergo'
➜ Explicit dependency on target 'Ergo' in project 'Ergo'
➜ Explicit dependency on target 'WorkflowReactiveSwift' in project 'Workflow'
Target 'Ergo' in project 'Ergo'
➜ Explicit dependency on target 'WorkflowReactiveSwift' in project 'Workflow'
Target 'WorkflowReactiveSwift' in project 'Workflow'
➜ Explicit dependency on target 'WorkflowReactiveSwift' in project 'Workflow'
➜ Explicit dependency on target 'Workflow' in project 'Workflow'
➜ Explicit dependency on target 'ReactiveSwift' in project 'ReactiveSwift'
Target 'WorkflowReactiveSwift' in project 'Workflow'
➜ Explicit dependency on target 'Workflow' in project 'Workflow'
➜ Explicit dependency on target 'ReactiveSwift' in project 'ReactiveSwift'
Target 'Workflow' in project 'Workflow'
➜ Explicit dependency on target 'ReactiveSwift' in project 'ReactiveSwift'
Target 'ReactiveSwift' in project 'ReactiveSwift'
➜ Explicit dependency on target 'ReactiveSwift' in project 'ReactiveSwift'
Target 'ReactiveSwift' in project 'ReactiveSwift' (no dependencies)
GatherProvisioningInputs
CreateBuildDescription
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc --version
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -v -E -dM -isysroot /Applications/Xcode-26.4.0.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS26.4.sdk -x c -c /dev/null
ExecuteExternalTool /Applications/Xcode-26.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -version_details
Build description signature: aa72f976ad69449de0ad6e5efd4ea717
Build description path: /Users/admin/builder/spi-builder-workspace/.derivedData/Build/Intermediates.noindex/XCBuildData/aa72f976ad69449de0ad6e5efd4ea717.xcbuilddata
error: The package product 'WorkflowReactiveSwift' requires minimum platform version 17.0 for the iOS platform, but this target supports 13.0 (in target 'Ergo' from project 'Ergo')
2026-04-17 04:42:54.215 xcodebuild[1303:6760] [MT] IDERunDestination: Supported platforms for the buildables in the current scheme is empty.
** BUILD FAILED **
The following build commands failed:
Building workspace spi-builder-workspace with scheme Ergo
(1 failure)
BUILD FAILURE 6.3 iOS