Swift Package Index

Build Information

Failed to build Observable, reference 2.0.0 (d510e7), with Swift 6.3 for Android on 13 Apr 2026 08:41:21 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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/Flowduino/Observable.git
Reference: 2.0.0
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/Flowduino/Observable
 * tag               2.0.0      -> FETCH_HEAD
HEAD is now at d510e71 Version 2.0.0
Cloned https://github.com/Flowduino/Observable.git
Revision (git rev-parse @):
d510e710900ea52bbfd9aa037addd708cbff526c
SUCCESS checkout https://github.com/Flowduino/Observable.git at 2.0.0
========================================
Build
========================================
Selected platform:         android
Swift version:             6.3
Building package at path:  $PWD
https://github.com/Flowduino/Observable.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$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
Fetching https://github.com/Flowduino/ThreadSafeSwift.git
[1/53] Fetching threadsafeswift
Fetched https://github.com/Flowduino/ThreadSafeSwift.git from cache (0.23s)
Computing version for https://github.com/Flowduino/ThreadSafeSwift.git
Computed https://github.com/Flowduino/ThreadSafeSwift.git at 1.1.0 (0.68s)
Creating working copy for https://github.com/Flowduino/ThreadSafeSwift.git
Working copy of https://github.com/Flowduino/ThreadSafeSwift.git resolved at 1.1.0
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version--4F562202D5529B1.txt
[4/5] Emitting module ThreadSafeSwift
[5/5] Compiling ThreadSafeSwift ThreadSafeSemaphore.swift
[7/14] Compiling Observable Observable.swift
[8/15] Compiling Observable ObservableClass.swift
/host/spi-builder-workspace/Sources/Observable/ObservableClass.swift:20:41: error: cannot find type 'ObservableObject' in scope
18 |  */
19 | @available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
20 | open class ObservableClass: Observable, ObservableObject {
   |                                         `- error: cannot find type 'ObservableObject' in scope
21 |     /**
22 |      Contains a Weak Reference to an Observer.
[9/15] Compiling Observable ObservableThread.swift
/host/spi-builder-workspace/Sources/Observable/ObservableThread.swift:20:50: error: cannot find type 'ObservableObject' in scope
 18 |  */
 19 | @available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
 20 | open class ObservableThread: Thread, Observable, ObservableObject {
    |                                                  `- error: cannot find type 'ObservableObject' in scope
 21 |     /**
 22 |      Contains a Weak Reference to an Observer.
/host/spi-builder-workspace/Sources/Observable/ObservableThread.swift:140:13: error: cannot find 'objectWillChange' in scope
138 |     open func notifyChange() async {
139 |         await MainActor.run {
140 |             objectWillChange.send()
    |             `- error: cannot find 'objectWillChange' in scope
141 |         }
142 |     }
[10/15] Compiling Observable KeyedObservableThreadSafeClass.swift
/host/spi-builder-workspace/Sources/Observable/ObservableThreadSafeClass.swift:20:51: error: cannot find type 'ObservableObject' in scope
 18 |  */
 19 | @available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
 20 | open class ObservableThreadSafeClass: Observable, ObservableObject {
    |                                                   `- error: cannot find type 'ObservableObject' in scope
 21 |     /**
 22 |      Contains a Weak Reference to an Observer.
[11/15] Compiling Observable KeyedObservable.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[12/15] Emitting module Observable
/host/spi-builder-workspace/Sources/Observable/ObservableClass.swift:20:41: error: cannot find type 'ObservableObject' in scope
18 |  */
19 | @available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
20 | open class ObservableClass: Observable, ObservableObject {
   |                                         `- error: cannot find type 'ObservableObject' in scope
21 |     /**
22 |      Contains a Weak Reference to an Observer.
/host/spi-builder-workspace/Sources/Observable/ObservableThreadSafeClass.swift:20:51: error: cannot find type 'ObservableObject' in scope
 18 |  */
 19 | @available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
 20 | open class ObservableThreadSafeClass: Observable, ObservableObject {
    |                                                   `- error: cannot find type 'ObservableObject' in scope
 21 |     /**
 22 |      Contains a Weak Reference to an Observer.
/host/spi-builder-workspace/Sources/Observable/ObservableThread.swift:20:50: error: cannot find type 'ObservableObject' in scope
 18 |  */
 19 | @available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
 20 | open class ObservableThread: Thread, Observable, ObservableObject {
    |                                                  `- error: cannot find type 'ObservableObject' in scope
 21 |     /**
 22 |      Contains a Weak Reference to an Observer.
[13/15] Compiling Observable KeyedObservableClass.swift
/host/spi-builder-workspace/Sources/Observable/ObservableClass.swift:20:41: error: cannot find type 'ObservableObject' in scope
18 |  */
19 | @available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
20 | open class ObservableClass: Observable, ObservableObject {
   |                                         `- error: cannot find type 'ObservableObject' in scope
21 |     /**
22 |      Contains a Weak Reference to an Observer.
[14/15] Compiling Observable ObservableThreadSafeClass.swift
/host/spi-builder-workspace/Sources/Observable/ObservableThreadSafeClass.swift:20:51: error: cannot find type 'ObservableObject' in scope
 18 |  */
 19 | @available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 6.0, *)
 20 | open class ObservableThreadSafeClass: Observable, ObservableObject {
    |                                                   `- error: cannot find type 'ObservableObject' in scope
 21 |     /**
 22 |      Contains a Weak Reference to an Observer.
/host/spi-builder-workspace/Sources/Observable/ObservableThreadSafeClass.swift:140:13: error: cannot find 'objectWillChange' in scope
138 |     open func notifyChange() async {
139 |         await MainActor.run {
140 |             objectWillChange.send()
    |             `- error: cannot find 'objectWillChange' in scope
141 |         }
142 |     }
[15/15] Compiling Observable KeyedObservableThread.swift
BUILD FAILURE 6.3 android