CalendarKit – Build Information – Swift Package Index

Build Information

Failed to build CalendarKit, reference master (99a4a0), with Swift 6.4 for Android on 28 Sep 2026 06:27:50 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:android-6.4-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/richardtop/CalendarKit.git
Reference: master
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/richardtop/CalendarKit
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 99a4a05 Merge pull request #387 from mishchenko11/feature/day-selection-corner-radius
Cloned https://github.com/richardtop/CalendarKit.git
Revision (git rev-parse @):
99a4a05c641d70c3f735ef4256f60dc86580cf20
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/richardtop/CalendarKit.git at master
========================================
Build
========================================
Selected platform:         android
Swift version:             6.4
Building package at path:  $PWD
https://github.com/richardtop/CalendarKit.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:android-6.4-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1
android-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:abadcff584c273feba50641b454858d377ba30b35ea7287a94f45ebd8afd0ea0
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.4-latest
Building for debugging...
[Planning deferred tasks]
[65 / 73] CalendarKit
[74 / 82] CalendarKit
error: SwiftCompile normal aarch64 failed with a nonzero exit code. Command line:     cd /host

/host/spi-builder-workspace/Sources/CalendarStyle.swift:2:8: [1;31merror: [1;39mno such module 'UIKit'[0;0m
 [0;36m1 |[0;0m import Foundation
 [0;36m2 |[0;0m import UIKit
   [0;36m|[0;0m        `- [1;31merror: [1;39mno such module 'UIKit'[0;0m
 [0;36m3 |[0;0m
 [0;36m4 |[0;0m public enum DateStyle {
Failed frontend command:
/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/.build/out/Intermediates.noindex/CalendarKit.build/Debug-android-aarch64/CalendarKit-t.build/DerivedSources/resource_bundle_accessor.swift /host/spi-builder-workspace/Sources/CalendarStyle.swift /host/spi-builder-workspace/Sources/DayView.swift /host/spi-builder-workspace/Sources/DayViewController.swift /host/spi-builder-workspace/Sources/DayViewState.swift /host/spi-builder-workspace/Sources/EventDataSource.swift /host/spi-builder-workspace/Sources/Extensions/Array+Shift.swift /host/spi-builder-workspace/Sources/Extensions/Date+DateOnly.swift /host/spi-builder-workspace/Sources/Extensions/Locale+24Hour.swift /host/spi-builder-workspace/Sources/Extensions/UIColor+SystemColors.swift /host/spi-builder-workspace/Sources/Extensions/Value+Clamped.swift /host/spi-builder-workspace/Sources/Extensions/View+StackView.swift /host/spi-builder-workspace/Sources/Header/DayHeaderView.swift /host/spi-builder-workspace/Sources/Header/DaySelector/DateLabel.swift /host/spi-builder-workspace/Sources/Header/DaySelector/DayDateCell.swift /host/spi-builder-workspace/Sources/Header/DaySelector/DaySelector.swift /host/spi-builder-workspace/Sources/Header/DaySelector/DaySelectorController.swift /host/spi-builder-workspace/Sources/Header/DaySymbolsView.swift /host/spi-builder-workspace/Sources/Header/SwipeLabelView.swift /host/spi-builder-workspace/Sources/Localization.swift /host/spi-builder-workspace/Sources/Timeline/AllDayView.swift /host/spi-builder-workspace/Sources/Timeline/CurrentTimeIndicator.swift /host/spi-builder-workspace/Sources/Timeline/Event.swift /host/spi-builder-workspace/Sources/Timeline/EventDescriptor.swift /host/spi-builder-workspace/Sources/Timeline/EventEditingSnappingBehavior.swift /host/spi-builder-workspace/Sources/Timeline/EventLayoutAttributes.swift /host/spi-builder-workspace/Sources/Timeline/EventResizeHandleDotView.swift /host/spi-builder-workspace/Sources/Timeline/EventResizeHandleView.swift /host/spi-builder-workspace/Sources/Timeline/EventView.swift /host/spi-builder-workspace/Sources/Timeline/ReusePool.swift /host/spi-builder-workspace/Sources/Timeline/SnapTo15MinuteIntervals.swift /host/spi-builder-workspace/Sources/Timeline/TimeStringsFactory.swift /host/spi-builder-workspace/Sources/Timeline/TimelineContainer.swift /host/spi-builder-workspace/Sources/Timeline/TimelineContainerController.swift /host/spi-builder-workspace/Sources/Timeline/TimelinePagerView.swift /host/spi-builder-workspace/Sources/Timeline/TimelineView.swift -target aarch64-unknown-linux-android28 -Xllvm -aarch64-use-tbi -disable-objc-interop -sdk /android-ndk/android-ndk-r27d/toolchains/llvm/prebuilt/linux-x86_64/sysroot -sysroot /android-ndk/android-ndk-r27d/toolchains/llvm/prebuilt/linux-x86_64/sysroot -I /host/spi-builder-workspace/.build/out/Products/Debug-android-aarch64 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_AVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/lib/swift/host/plugins/testing\#/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -resource-dir /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_android.artifactbundle/swift-android/swift-resources/usr/lib/swift-aarch64 -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -resource-dir -Xcc /android-ndk/android-ndk-r27d/toolchains/llvm/prebuilt/linux-x86_64/lib/clang/18 -Xcc -fno-omit-frame-pointer -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-android-aarch64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/CalendarKit.build/Debug-android-aarch64/CalendarKit-t.build/DerivedSources-normal/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/CalendarKit.build/Debug-android-aarch64/CalendarKit-t.build/DerivedSources/aarch64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/CalendarKit.build/Debug-android-aarch64/CalendarKit-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name CalendarKit -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/CalendarKit.build/Debug-android-aarch64/CalendarKit-t.build/Objects-normal/aarch64/CalendarKit_const_extract_protocols.json -in-process-plugin-server-path /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/lib/swift/host/plugins -plugin-path /root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/local/lib/swift/host/plugins -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CalendarKit.build/Debug-android-aarch64/CalendarKit-t.build/Objects-normal/aarch64/Modules/CalendarKit.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CalendarKit.build/Debug-android-aarch64/CalendarKit-t.build/Objects-normal/aarch64/Modules/CalendarKit.swiftsourceinfo -emit-objc-header-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CalendarKit.build/Debug-android-aarch64/CalendarKit-t.build/Objects-normal/aarch64/CalendarKit-Swift.h -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CalendarKit.build/Debug-android-aarch64/CalendarKit-t.build/Objects-normal/aarch64/CalendarKit-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/CalendarKit.build/Debug-android-aarch64/CalendarKit-t.build/Objects-normal/aarch64/CalendarKit-primary-emit-module.d -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/CalendarKit.build/Debug-android-aarch64/CalendarKit-t.build/Objects-normal/aarch64/Modules/CalendarKit.swiftmodule
error: Build failed
BUILD FAILURE 6.4 android