Swift Package Index

Build Information

Failed to build ExtSwift, reference master (f5453d), with Swift 6.3 for Android on 21 Apr 2026 15:58:45 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/iwill/ExtSwift.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/iwill/ExtSwift
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at f5453d3 tag: 1.0.0
Cloned https://github.com/iwill/ExtSwift.git
Revision (git rev-parse @):
f5453d338088add21b8e6053b8cd8e7c829c67e8
SUCCESS checkout https://github.com/iwill/ExtSwift.git at master
========================================
Build
========================================
Selected platform:         android
Swift version:             6.3
Building package at path:  $PWD
https://github.com/iwill/ExtSwift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1
android-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:9008270ea37a55e78725e6225015adb5eff8582da520c5232bf0499f32c36dc4
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version--4F562202D5529B1.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/22] Emitting module ExtSwift
/host/spi-builder-workspace/Sources/ExtSwift/Foundation/KVO.swift:174:2: error: Objective-C interoperability is disabled
172 | // public enum KVObservingState { case keep, stop }
173 |
174 | @objc // for Swift&ObjC mixed project
    |  `- error: Objective-C interoperability is disabled
175 | public protocol KVObserver: AnyObject {
176 |     func isObserving() -> Bool
[4/24] Compiling ExtSwift UITableViewCell+Style.swift
[5/24] Compiling ExtSwift AnyEquatable.swift
[6/24] Compiling ExtSwift UIKit+Autolayout.swift
[7/24] Compiling ExtSwift UIKit.swift
[8/24] Compiling ExtSwift boolValue.swift
[9/24] Compiling ExtSwift tryIndex.swift
[10/24] Compiling ExtSwift ESCollectionViewDiffableDataSource.swift
[11/24] Compiling ExtSwift JSON.swift
[12/24] Compiling ExtSwift ifEmpty.swift
[13/24] Compiling ExtSwift ESDiffableDataSourceSnapshot.swift
[14/24] Compiling ExtSwift ESDiffableDataSourceSnapshotBuilder.swift
[15/24] Compiling ExtSwift ESTableViewDiffableDataSource.swift
[16/24] Compiling ExtSwift String+IntIndex.swift
[17/24] Compiling ExtSwift Types.swift
[18/24] Compiling ExtSwift WeakArray.swift
[19/24] Compiling ExtSwift NameSpace.swift
[20/24] Compiling ExtSwift Operators.swift
[21/24] Compiling ExtSwift SemanticVersion.swift
[22/24] Compiling ExtSwift ExtSwift.swift
/host/spi-builder-workspace/Sources/ExtSwift/Foundation/KVO.swift:174:2: error: Objective-C interoperability is disabled
172 | // public enum KVObservingState { case keep, stop }
173 |
174 | @objc // for Swift&ObjC mixed project
    |  `- error: Objective-C interoperability is disabled
175 | public protocol KVObserver: AnyObject {
176 |     func isObserving() -> Bool
[23/24] Compiling ExtSwift KVO.swift
/host/spi-builder-workspace/Sources/ExtSwift/Foundation/KVO.swift:174:2: error: Objective-C interoperability is disabled
172 | // public enum KVObservingState { case keep, stop }
173 |
174 | @objc // for Swift&ObjC mixed project
    |  `- error: Objective-C interoperability is disabled
175 | public protocol KVObserver: AnyObject {
176 |     func isObserving() -> Bool
[24/24] Compiling ExtSwift Mutable.swift
/host/spi-builder-workspace/Sources/ExtSwift/Foundation/KVO.swift:174:2: error: Objective-C interoperability is disabled
172 | // public enum KVObservingState { case keep, stop }
173 |
174 | @objc // for Swift&ObjC mixed project
    |  `- error: Objective-C interoperability is disabled
175 | public protocol KVObserver: AnyObject {
176 |     func isObserving() -> Bool
BUILD FAILURE 6.3 android