Swift Package IndexBuild Information
Successful build of KMPObservableViewModel, reference v1.0.3 (b7976b), with Swift 6.1 for macOS (SPM) on 18 Mar 2026 21:58:17 UTC.
Swift 6 data race errors: 2
Build Command
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64Build Log
========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/rickclephas/KMP-ObservableViewModel.git
Reference: v1.0.3
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/rickclephas/KMP-ObservableViewModel
* tag v1.0.3 -> FETCH_HEAD
HEAD is now at b7976b0 Bump version to 1.0.3
Cloned https://github.com/rickclephas/KMP-ObservableViewModel.git
Revision (git rev-parse @):
b7976b0854921f7fa7b4d5fb3d5b029438a1b32d
SUCCESS checkout https://github.com/rickclephas/KMP-ObservableViewModel.git at v1.0.3
========================================
Build
========================================
Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/rickclephas/KMP-ObservableViewModel.git
https://github.com/rickclephas/KMP-ObservableViewModel.git
{
"dependencies" : [
],
"manifest_display_name" : "KMPObservableViewModel",
"name" : "KMPObservableViewModel",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "13.0"
},
{
"name" : "macos",
"version" : "10.15"
},
{
"name" : "tvos",
"version" : "13.0"
},
{
"name" : "watchos",
"version" : "6.0"
}
],
"products" : [
{
"name" : "KMPObservableViewModelCore",
"targets" : [
"KMPObservableViewModelCore"
],
"type" : {
"library" : [
"automatic"
]
}
},
{
"name" : "KMPObservableViewModelSwiftUI",
"targets" : [
"KMPObservableViewModelSwiftUI"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"swift_languages_versions" : [
"5"
],
"targets" : [
{
"c99name" : "KMPObservableViewModelSwiftUI",
"module_type" : "SwiftTarget",
"name" : "KMPObservableViewModelSwiftUI",
"path" : "KMPObservableViewModelSwiftUI",
"product_memberships" : [
"KMPObservableViewModelSwiftUI"
],
"sources" : [
"EnvironmentViewModel.swift",
"ObservableViewModelProjection.swift",
"ObservedViewModel.swift",
"StateViewModel.swift"
],
"target_dependencies" : [
"KMPObservableViewModelCore"
],
"type" : "library"
},
{
"c99name" : "KMPObservableViewModelCoreObjC",
"module_type" : "ClangTarget",
"name" : "KMPObservableViewModelCoreObjC",
"path" : "KMPObservableViewModelCoreObjC",
"product_memberships" : [
"KMPObservableViewModelCore",
"KMPObservableViewModelSwiftUI"
],
"sources" : [
"KMPObservableViewModelCoreObjC.m"
],
"type" : "library"
},
{
"c99name" : "KMPObservableViewModelCore",
"module_type" : "SwiftTarget",
"name" : "KMPObservableViewModelCore",
"path" : "KMPObservableViewModelCore",
"product_memberships" : [
"KMPObservableViewModelCore",
"KMPObservableViewModelSwiftUI"
],
"sources" : [
"ChildViewModels.swift",
"ObservableProperties.swift",
"ObservableViewModel.swift",
"ObservableViewModelPublisher.swift",
"ViewModel.swift",
"ViewModelCancellable.swift"
],
"target_dependencies" : [
"KMPObservableViewModelCoreObjC"
],
"type" : "library"
}
],
"tools_version" : "5.3"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures
Building for debugging...
[0/4] Write sources
[2/4] Compiling KMPObservableViewModelCoreObjC KMPObservableViewModelCoreObjC.m
[3/4] Write swift-version-2F0A5646E1D333AE.txt
[5/11] Compiling KMPObservableViewModelCore ViewModel.swift
[6/11] Compiling KMPObservableViewModelCore ChildViewModels.swift
[7/11] Emitting module KMPObservableViewModelCore
[8/11] Compiling KMPObservableViewModelCore ObservableViewModel.swift
[9/11] Compiling KMPObservableViewModelCore ObservableViewModelPublisher.swift
[10/11] Compiling KMPObservableViewModelCore ViewModelCancellable.swift
[11/11] Compiling KMPObservableViewModelCore ObservableProperties.swift
[12/16] Compiling KMPObservableViewModelSwiftUI ObservedViewModel.swift
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/ObservedViewModel.swift:16:6: warning: call to main actor-isolated initializer 'init(wrappedValue:)' in a synchronous nonisolated context; this is an error in the Swift 6 language mode
14 | public struct ObservedViewModel<VM: ViewModel>: DynamicProperty {
15 |
16 | @ObservedObject private var observableObject: ObservableViewModel<VM>
| `- warning: call to main actor-isolated initializer 'init(wrappedValue:)' in a synchronous nonisolated context; this is an error in the Swift 6 language mode
17 |
18 | /// A projection of the observed `ViewModel` that creates bindings to its properties using dynamic member lookup.
SwiftUICore.ObservedObject.init:2:35: note: calls to initializer 'init(wrappedValue:)' from outside of its actor context are implicitly asynchronous
1 | generic struct ObservedObject {
2 | @MainActor @preconcurrency public init(wrappedValue: ObjectType)}
| `- note: calls to initializer 'init(wrappedValue:)' from outside of its actor context are implicitly asynchronous
3 |
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/ObservedViewModel.swift:23:15: warning: main actor-isolated property 'observableObject' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
14 | public struct ObservedViewModel<VM: ViewModel>: DynamicProperty {
15 |
16 | @ObservedObject private var observableObject: ObservableViewModel<VM>
| `- note: property declared here
17 |
18 | /// A projection of the observed `ViewModel` that creates bindings to its properties using dynamic member lookup.
:
21 | /// The underlying `ViewModel` referenced by the `ObservedViewModel`.
22 | public var wrappedValue: VM {
23 | get { observableObject.viewModel }
| `- warning: main actor-isolated property 'observableObject' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
24 | set {
25 | let observableObject = observableViewModel(for: newValue)
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/ObservedViewModel.swift:26:18: warning: main actor-isolated property 'observableObject' can not be mutated from a nonisolated context; this is an error in the Swift 6 language mode
14 | public struct ObservedViewModel<VM: ViewModel>: DynamicProperty {
15 |
16 | @ObservedObject private var observableObject: ObservableViewModel<VM>
| `- note: mutation of this property is only permitted within the actor
17 |
18 | /// A projection of the observed `ViewModel` that creates bindings to its properties using dynamic member lookup.
:
24 | set {
25 | let observableObject = observableViewModel(for: newValue)
26 | self.observableObject = observableObject
| `- warning: main actor-isolated property 'observableObject' can not be mutated from a nonisolated context; this is an error in the Swift 6 language mode
27 | self.projectedValue = ObservableViewModel.Projection(observableObject)
28 | }
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/ObservedViewModel.swift:35:14: warning: main actor-isolated property 'observableObject' can not be mutated from a nonisolated context; this is an error in the Swift 6 language mode
14 | public struct ObservedViewModel<VM: ViewModel>: DynamicProperty {
15 |
16 | @ObservedObject private var observableObject: ObservableViewModel<VM>
| `- note: mutation of this property is only permitted within the actor
17 |
18 | /// A projection of the observed `ViewModel` that creates bindings to its properties using dynamic member lookup.
:
33 | public init(wrappedValue: VM) {
34 | let observableObject = observableViewModel(for: wrappedValue)
35 | self.observableObject = observableObject
| `- warning: main actor-isolated property 'observableObject' can not be mutated from a nonisolated context; this is an error in the Swift 6 language mode
36 | self.projectedValue = ObservableViewModel.Projection(observableObject)
37 | }
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/ObservedViewModel.swift:16:6: warning: sending '$input_value' risks causing data races; this is an error in the Swift 6 language mode
14 | public struct ObservedViewModel<VM: ViewModel>: DynamicProperty {
15 |
16 | @ObservedObject private var observableObject: ObservableViewModel<VM>
| |- warning: sending '$input_value' risks causing data races; this is an error in the Swift 6 language mode
| `- note: sending task-isolated '$input_value' to main actor-isolated callee risks causing data races between main actor-isolated and task-isolated uses
17 |
18 | /// A projection of the observed `ViewModel` that creates bindings to its properties using dynamic member lookup.
[13/16] Compiling KMPObservableViewModelSwiftUI StateViewModel.swift
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/StateViewModel.swift:20:35: warning: main actor-isolated property 'observableObject' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
15 | public struct StateViewModel<VM: ViewModel>: DynamicProperty {
16 |
17 | @StateObject private var observableObject: ObservableViewModel<VM>
| `- note: property declared here
18 |
19 | /// The underlying `ViewModel` referenced by the `StateViewModel`.
20 | public var wrappedValue: VM { observableObject.viewModel }
| `- warning: main actor-isolated property 'observableObject' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
21 |
22 | /// A projection of the observed `ViewModel` that creates bindings to its properties using dynamic member lookup.
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/StateViewModel.swift:24:40: warning: main actor-isolated property 'observableObject' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
15 | public struct StateViewModel<VM: ViewModel>: DynamicProperty {
16 |
17 | @StateObject private var observableObject: ObservableViewModel<VM>
| `- note: property declared here
18 |
19 | /// The underlying `ViewModel` referenced by the `StateViewModel`.
:
22 | /// A projection of the observed `ViewModel` that creates bindings to its properties using dynamic member lookup.
23 | public var projectedValue: ObservableViewModel<VM>.Projection {
24 | ObservableViewModel.Projection(observableObject)
| `- warning: main actor-isolated property 'observableObject' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
25 | }
26 |
[14/16] Compiling KMPObservableViewModelSwiftUI ObservableViewModelProjection.swift
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/ObservableViewModelProjection.swift:25:17: warning: capture of 'self' with non-sendable type 'ObservableViewModel<VM>.Projection' in a '@Sendable' closure
13 | /// A projection of a `ViewModel` that creates bindings to its properties using dynamic member lookup.
14 | @dynamicMemberLookup
15 | struct Projection {
| `- note: consider making struct 'Projection' conform to the 'Sendable' protocol
16 |
17 | internal let observableObject: ObservableViewModel<VM>
:
23 | public subscript<T>(dynamicMember keyPath: WritableKeyPath<VM, T>) -> Binding<T> {
24 | Binding {
25 | observableObject.viewModel[keyPath: keyPath]
| `- warning: capture of 'self' with non-sendable type 'ObservableViewModel<VM>.Projection' in a '@Sendable' closure
26 | } set: { value in
27 | var viewModel = observableObject.viewModel
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/ObservableViewModelProjection.swift:25:53: warning: capture of 'keyPath' with non-sendable type 'WritableKeyPath<VM, T>' in a '@Sendable' closure
23 | public subscript<T>(dynamicMember keyPath: WritableKeyPath<VM, T>) -> Binding<T> {
24 | Binding {
25 | observableObject.viewModel[keyPath: keyPath]
| `- warning: capture of 'keyPath' with non-sendable type 'WritableKeyPath<VM, T>' in a '@Sendable' closure
26 | } set: { value in
27 | var viewModel = observableObject.viewModel
Swift.WritableKeyPath:1:14: note: generic class 'WritableKeyPath' does not conform to the 'Sendable' protocol
1 | public class WritableKeyPath<Root, Value> : KeyPath<Root, Value> {
| `- note: generic class 'WritableKeyPath' does not conform to the 'Sendable' protocol
2 | @objc deinit
3 | }
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/ObservableViewModelProjection.swift:27:33: warning: capture of 'self' with non-sendable type 'ObservableViewModel<VM>.Projection' in a '@Sendable' closure
13 | /// A projection of a `ViewModel` that creates bindings to its properties using dynamic member lookup.
14 | @dynamicMemberLookup
15 | struct Projection {
| `- note: consider making struct 'Projection' conform to the 'Sendable' protocol
16 |
17 | internal let observableObject: ObservableViewModel<VM>
:
25 | observableObject.viewModel[keyPath: keyPath]
26 | } set: { value in
27 | var viewModel = observableObject.viewModel
| `- warning: capture of 'self' with non-sendable type 'ObservableViewModel<VM>.Projection' in a '@Sendable' closure
28 | viewModel[keyPath: keyPath] = value
29 | }
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/ObservableViewModelProjection.swift:28:36: warning: capture of 'keyPath' with non-sendable type 'WritableKeyPath<VM, T>' in a '@Sendable' closure
26 | } set: { value in
27 | var viewModel = observableObject.viewModel
28 | viewModel[keyPath: keyPath] = value
| `- warning: capture of 'keyPath' with non-sendable type 'WritableKeyPath<VM, T>' in a '@Sendable' closure
29 | }
30 | }
Swift.WritableKeyPath:1:14: note: generic class 'WritableKeyPath' does not conform to the 'Sendable' protocol
1 | public class WritableKeyPath<Root, Value> : KeyPath<Root, Value> {
| `- note: generic class 'WritableKeyPath' does not conform to the 'Sendable' protocol
2 | @objc deinit
3 | }
[15/16] Emitting module KMPObservableViewModelSwiftUI
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/ObservedViewModel.swift:16:6: warning: call to main actor-isolated initializer 'init(wrappedValue:)' in a synchronous nonisolated context; this is an error in the Swift 6 language mode
14 | public struct ObservedViewModel<VM: ViewModel>: DynamicProperty {
15 |
16 | @ObservedObject private var observableObject: ObservableViewModel<VM>
| `- warning: call to main actor-isolated initializer 'init(wrappedValue:)' in a synchronous nonisolated context; this is an error in the Swift 6 language mode
17 |
18 | /// A projection of the observed `ViewModel` that creates bindings to its properties using dynamic member lookup.
SwiftUICore.ObservedObject.init:2:35: note: calls to initializer 'init(wrappedValue:)' from outside of its actor context are implicitly asynchronous
1 | generic struct ObservedObject {
2 | @MainActor @preconcurrency public init(wrappedValue: ObjectType)}
| `- note: calls to initializer 'init(wrappedValue:)' from outside of its actor context are implicitly asynchronous
3 |
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/ObservedViewModel.swift:16:6: warning: sending '$input_value' risks causing data races; this is an error in the Swift 6 language mode
14 | public struct ObservedViewModel<VM: ViewModel>: DynamicProperty {
15 |
16 | @ObservedObject private var observableObject: ObservableViewModel<VM>
| |- warning: sending '$input_value' risks causing data races; this is an error in the Swift 6 language mode
| `- note: sending task-isolated '$input_value' to main actor-isolated callee risks causing data races between main actor-isolated and task-isolated uses
17 |
18 | /// A projection of the observed `ViewModel` that creates bindings to its properties using dynamic member lookup.
[16/16] Compiling KMPObservableViewModelSwiftUI EnvironmentViewModel.swift
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/EnvironmentViewModel.swift:19:35: warning: main actor-isolated property 'observableObject' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
14 | public struct EnvironmentViewModel<VM: ViewModel>: DynamicProperty {
15 |
16 | @EnvironmentObject private var observableObject: ObservableViewModel<VM>
| `- note: property declared here
17 |
18 | /// The underlying `ViewModel` referenced by the `EnvironmentViewModel`.
19 | public var wrappedValue: VM { observableObject.viewModel }
| `- warning: main actor-isolated property 'observableObject' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
20 |
21 | /// A projection of the observed `ViewModel` that creates bindings to its properties using dynamic member lookup.
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/EnvironmentViewModel.swift:23:40: warning: main actor-isolated property 'observableObject' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
14 | public struct EnvironmentViewModel<VM: ViewModel>: DynamicProperty {
15 |
16 | @EnvironmentObject private var observableObject: ObservableViewModel<VM>
| `- note: property declared here
17 |
18 | /// The underlying `ViewModel` referenced by the `EnvironmentViewModel`.
:
21 | /// A projection of the observed `ViewModel` that creates bindings to its properties using dynamic member lookup.
22 | public var projectedValue: ObservableViewModel<VM>.Projection {
23 | ObservableViewModel.Projection(observableObject)
| `- warning: main actor-isolated property 'observableObject' can not be referenced from a nonisolated context; this is an error in the Swift 6 language mode
24 | }
25 |
/Users/admin/builder/spi-builder-workspace/KMPObservableViewModelSwiftUI/EnvironmentViewModel.swift:27:21: error: return from initializer without initializing all stored properties
25 |
26 | /// Creates an `EnvironmentViewModel`.
27 | public init() { }
| |- error: return from initializer without initializing all stored properties
| `- note: main actor-isolated default value of 'self.observableObject' cannot be used in a nonisolated initalizer
28 | }
29 |
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-2F0A5646E1D333AE.txt
[2/8] Compiling KMPObservableViewModelCore ViewModel.swift
[3/8] Compiling KMPObservableViewModelCore ObservableViewModelPublisher.swift
[4/8] Compiling KMPObservableViewModelCore ViewModelCancellable.swift
[5/8] Compiling KMPObservableViewModelCore ObservableViewModel.swift
[6/8] Emitting module KMPObservableViewModelCore
[7/8] Compiling KMPObservableViewModelCore ObservableProperties.swift
[8/8] Compiling KMPObservableViewModelCore ChildViewModels.swift
[9/13] Compiling KMPObservableViewModelSwiftUI StateViewModel.swift
[10/13] Compiling KMPObservableViewModelSwiftUI ObservedViewModel.swift
[11/13] Compiling KMPObservableViewModelSwiftUI ObservableViewModelProjection.swift
[12/13] Emitting module KMPObservableViewModelSwiftUI
[13/13] Compiling KMPObservableViewModelSwiftUI EnvironmentViewModel.swift
Build complete! (1.33s)
Build complete.
{
"dependencies" : [
],
"manifest_display_name" : "KMPObservableViewModel",
"name" : "KMPObservableViewModel",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "13.0"
},
{
"name" : "macos",
"version" : "10.15"
},
{
"name" : "tvos",
"version" : "13.0"
},
{
"name" : "watchos",
"version" : "6.0"
}
],
"products" : [
{
"name" : "KMPObservableViewModelCore",
"targets" : [
"KMPObservableViewModelCore"
],
"type" : {
"library" : [
"automatic"
]
}
},
{
"name" : "KMPObservableViewModelSwiftUI",
"targets" : [
"KMPObservableViewModelSwiftUI"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"swift_languages_versions" : [
"5"
],
"targets" : [
{
"c99name" : "KMPObservableViewModelSwiftUI",
"module_type" : "SwiftTarget",
"name" : "KMPObservableViewModelSwiftUI",
"path" : "KMPObservableViewModelSwiftUI",
"product_memberships" : [
"KMPObservableViewModelSwiftUI"
],
"sources" : [
"EnvironmentViewModel.swift",
"ObservableViewModelProjection.swift",
"ObservedViewModel.swift",
"StateViewModel.swift"
],
"target_dependencies" : [
"KMPObservableViewModelCore"
],
"type" : "library"
},
{
"c99name" : "KMPObservableViewModelCoreObjC",
"module_type" : "ClangTarget",
"name" : "KMPObservableViewModelCoreObjC",
"path" : "KMPObservableViewModelCoreObjC",
"product_memberships" : [
"KMPObservableViewModelCore",
"KMPObservableViewModelSwiftUI"
],
"sources" : [
"KMPObservableViewModelCoreObjC.m"
],
"type" : "library"
},
{
"c99name" : "KMPObservableViewModelCore",
"module_type" : "SwiftTarget",
"name" : "KMPObservableViewModelCore",
"path" : "KMPObservableViewModelCore",
"product_memberships" : [
"KMPObservableViewModelCore",
"KMPObservableViewModelSwiftUI"
],
"sources" : [
"ChildViewModels.swift",
"ObservableProperties.swift",
"ObservableViewModel.swift",
"ObservableViewModelPublisher.swift",
"ViewModel.swift",
"ViewModelCancellable.swift"
],
"target_dependencies" : [
"KMPObservableViewModelCoreObjC"
],
"type" : "library"
}
],
"tools_version" : "5.3"
}
Done.