Swift Package Index

Build Information

Failed to build SKHelper, reference 2.0.0 (87e3d2), with Swift 6.1 for macOS (SPM) on 17 Jul 2026 22:06:58 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: undefined version: run 'make version' to update
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/russell-archer/SKHelper.git
Reference: 2.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/russell-archer/SKHelper
 * tag               2.0.0      -> FETCH_HEAD
HEAD is now at 87e3d2d Merge pull request #16 from Anywhere-Music-Player/dev/core-ui-split-pr
Cloned https://github.com/russell-archer/SKHelper.git
Revision (git rev-parse @):
87e3d2dd0494279121621d79a380a7726f184bdf
SUCCESS checkout https://github.com/russell-archer/SKHelper.git at 2.0.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/russell-archer/SKHelper.git
https://github.com/russell-archer/SKHelper.git
{
  "dependencies" : [
    {
      "identity" : "swift-docc-plugin",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.4.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/apple/swift-docc-plugin.git"
    }
  ],
  "manifest_display_name" : "SKHelper",
  "name" : "SKHelper",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "17.0"
    },
    {
      "name" : "macos",
      "version" : "14.6"
    }
  ],
  "products" : [
    {
      "name" : "SKHelperCore",
      "targets" : [
        "SKHelperCore"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "SKHelperUI",
      "targets" : [
        "SKHelperUI"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SKHelperUITests",
      "module_type" : "SwiftTarget",
      "name" : "SKHelperUITests",
      "path" : "Tests/SKHelperUITests",
      "sources" : [
        "SKHelperUIImportTests.swift"
      ],
      "target_dependencies" : [
        "SKHelperUI"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SKHelperUI",
      "module_type" : "SwiftTarget",
      "name" : "SKHelperUI",
      "path" : "Sources/SKHelperUI",
      "product_memberships" : [
        "SKHelperUI"
      ],
      "sources" : [
        "SKHelperUI.swift",
        "Styles/SKHelperButtons.swift",
        "Styles/SKHelperProductViewStyle.swift",
        "Styles/SKHelperTapGesture.swift",
        "ViewModifiers/OnProductsAvailable.swift",
        "ViewModifiers/OnSubscriptionChange.swift",
        "ViewModifiers/OnTransaction.swift",
        "Views/SKHelperManagePurchaseView.swift",
        "Views/SKHelperProductView.swift",
        "Views/SKHelperPurchaseInfoFieldText.swift",
        "Views/SKHelperPurchaseInfoFieldView.swift",
        "Views/SKHelperPurchaseInfoMain.swift",
        "Views/SKHelperPurchaseInfoManage.swift",
        "Views/SKHelperPurchasesView.swift",
        "Views/SKHelperSheetBarView.swift",
        "Views/SKHelperStoreView.swift",
        "Views/SKHelperStoreViewBody.swift",
        "Views/SKHelperSubscriptionInfoMain.swift",
        "Views/SKHelperSubscriptionInfoManage.swift",
        "Views/SKHelperSubscriptionStoreView.swift"
      ],
      "target_dependencies" : [
        "SKHelperCore"
      ],
      "type" : "library"
    },
    {
      "c99name" : "SKHelperCoreTests",
      "module_type" : "SwiftTarget",
      "name" : "SKHelperCoreTests",
      "path" : "Tests/SKHelperCoreTests",
      "sources" : [
        "SKHelperCoreImportTests.swift"
      ],
      "target_dependencies" : [
        "SKHelperCore"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SKHelperCore",
      "module_type" : "SwiftTarget",
      "name" : "SKHelperCore",
      "path" : "Sources/SKHelperCore",
      "product_memberships" : [
        "SKHelperCore",
        "SKHelperUI"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Resources/PrivacyInfo.xcprivacy",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "Core/SKHelper+Extensions.swift",
        "Core/SKHelper.swift",
        "Core/SKHelperConfiguration.swift",
        "Core/SKHelperConstants.swift",
        "Core/SKHelperLog.swift",
        "Core/SKHelperNotification.swift",
        "Core/SKHelperProduct.swift",
        "Core/SKHelperPurchaseInfo.swift",
        "Core/SKHelperSubscriptionInfo.swift",
        "Support/SKHelperEntitlementState.swift",
        "Support/SKHelperPurchaseState.swift",
        "Support/SKHelperSubscriptionState.swift",
        "Support/SKHelperTransactionUpdateReason.swift",
        "Support/SKHelperUnwrappedVerificationResult.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.1"
}
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
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/6] Write sources
[3/6] Copying PrivacyInfo.xcprivacy
[5/6] Write swift-version-2F0A5646E1D333AE.txt
[7/21] Compiling SKHelperCore SKHelperTransactionUpdateReason.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[8/22] Compiling SKHelperCore resource_bundle_accessor.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[9/22] Compiling SKHelperCore SKHelperUnwrappedVerificationResult.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[10/22] Compiling SKHelperCore SKHelperSubscriptionState.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[11/22] Compiling SKHelperCore SKHelperPurchaseState.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[12/22] Compiling SKHelperCore SKHelperProduct.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[13/22] Compiling SKHelperCore SKHelperPurchaseInfo.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[14/22] Compiling SKHelperCore SKHelperConfiguration.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[15/22] Compiling SKHelperCore SKHelperConstants.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[16/22] Compiling SKHelperCore SKHelperSubscriptionInfo.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[17/22] Compiling SKHelperCore SKHelperEntitlementState.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
error: emit-module command failed with exit code 1 (use -v to see invocation)
[18/22] Compiling SKHelperCore SKHelperLog.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[19/22] Compiling SKHelperCore SKHelperNotification.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
[20/22] Emitting module SKHelperCore
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:137:5: error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 135 |     /// Stop listening for App Store transactions, purchase intents and subscription changes.
 136 |     ///
 137 |     @MainActor
     |     `- error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 138 |     deinit {
 139 |         transactionListener?.cancel()
[21/22] Compiling SKHelperCore SKHelper+Extensions.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:137:5: error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 135 |     /// Stop listening for App Store transactions, purchase intents and subscription changes.
 136 |     ///
 137 |     @MainActor
     |     `- error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 138 |     deinit {
 139 |         transactionListener?.cancel()
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:139:9: error: main actor-isolated property 'transactionListener' can not be referenced from a nonisolated context
  91 |
  92 |     /// Handler for App Store transactions.
  93 |     private var transactionListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
  94 |
  95 |     /// Handler for purchase intents from App Store-promoted IAPs.
     :
 137 |     @MainActor
 138 |     deinit {
 139 |         transactionListener?.cancel()
     |         `- error: main actor-isolated property 'transactionListener' can not be referenced from a nonisolated context
 140 |         purchaseIntentListener?.cancel()
 141 |         subscriptionListener?.cancel()
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:140:9: error: main actor-isolated property 'purchaseIntentListener' can not be referenced from a nonisolated context
  94 |
  95 |     /// Handler for purchase intents from App Store-promoted IAPs.
  96 |     private var purchaseIntentListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
  97 |
  98 |     /// Handler for changes to subscriptions.
     :
 138 |     deinit {
 139 |         transactionListener?.cancel()
 140 |         purchaseIntentListener?.cancel()
     |         `- error: main actor-isolated property 'purchaseIntentListener' can not be referenced from a nonisolated context
 141 |         subscriptionListener?.cancel()
 142 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:141:9: error: main actor-isolated property 'subscriptionListener' can not be referenced from a nonisolated context
  97 |
  98 |     /// Handler for changes to subscriptions.
  99 |     private var subscriptionListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
 100 |
 101 |     /// The current internal state of `SKHelper`.
     :
 139 |         transactionListener?.cancel()
 140 |         purchaseIntentListener?.cancel()
 141 |         subscriptionListener?.cancel()
     |         `- error: main actor-isolated property 'subscriptionListener' can not be referenced from a nonisolated context
 142 |     }
 143 |
[22/22] Compiling SKHelperCore SKHelper.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:137:5: error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 135 |     /// Stop listening for App Store transactions, purchase intents and subscription changes.
 136 |     ///
 137 |     @MainActor
     |     `- error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 138 |     deinit {
 139 |         transactionListener?.cancel()
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:139:9: error: main actor-isolated property 'transactionListener' can not be referenced from a nonisolated context
  91 |
  92 |     /// Handler for App Store transactions.
  93 |     private var transactionListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
  94 |
  95 |     /// Handler for purchase intents from App Store-promoted IAPs.
     :
 137 |     @MainActor
 138 |     deinit {
 139 |         transactionListener?.cancel()
     |         `- error: main actor-isolated property 'transactionListener' can not be referenced from a nonisolated context
 140 |         purchaseIntentListener?.cancel()
 141 |         subscriptionListener?.cancel()
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:140:9: error: main actor-isolated property 'purchaseIntentListener' can not be referenced from a nonisolated context
  94 |
  95 |     /// Handler for purchase intents from App Store-promoted IAPs.
  96 |     private var purchaseIntentListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
  97 |
  98 |     /// Handler for changes to subscriptions.
     :
 138 |     deinit {
 139 |         transactionListener?.cancel()
 140 |         purchaseIntentListener?.cancel()
     |         `- error: main actor-isolated property 'purchaseIntentListener' can not be referenced from a nonisolated context
 141 |         subscriptionListener?.cancel()
 142 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:141:9: error: main actor-isolated property 'subscriptionListener' can not be referenced from a nonisolated context
  97 |
  98 |     /// Handler for changes to subscriptions.
  99 |     private var subscriptionListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
 100 |
 101 |     /// The current internal state of `SKHelper`.
     :
 139 |         transactionListener?.cancel()
 140 |         purchaseIntentListener?.cancel()
 141 |         subscriptionListener?.cancel()
     |         `- error: main actor-isolated property 'subscriptionListener' can not be referenced from a nonisolated context
 142 |     }
 143 |
Fetching https://github.com/apple/swift-docc-plugin.git
[1/2325] Fetching swift-docc-plugin
Fetched https://github.com/apple/swift-docc-plugin.git from cache (1.18s)
Computing version for https://github.com/apple/swift-docc-plugin.git
Computed https://github.com/apple/swift-docc-plugin.git at 1.5.0 (4.49s)
Fetching https://github.com/swiftlang/swift-docc-symbolkit from cache
Fetched https://github.com/swiftlang/swift-docc-symbolkit from cache (0.96s)
Computing version for https://github.com/swiftlang/swift-docc-symbolkit
Computed https://github.com/swiftlang/swift-docc-symbolkit at 1.0.0 (1.68s)
Creating working copy for https://github.com/apple/swift-docc-plugin.git
Working copy of https://github.com/apple/swift-docc-plugin.git resolved at 1.5.0
Creating working copy for https://github.com/swiftlang/swift-docc-symbolkit
Working copy of https://github.com/swiftlang/swift-docc-symbolkit resolved at 1.0.0
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
[0/1] Planning build
[1/1] Compiling plugin Swift-DocC Preview
[2/2] Compiling plugin Swift-DocC
Building for debugging...
[2/3] Write swift-version-2F0A5646E1D333AE.txt
[4/18] Compiling SKHelperCore SKHelperTransactionUpdateReason.swift
[5/19] Compiling SKHelperCore SKHelperSubscriptionState.swift
[6/19] Compiling SKHelperCore SKHelperUnwrappedVerificationResult.swift
[7/19] Compiling SKHelperCore SKHelperPurchaseState.swift
[8/19] Compiling SKHelperCore SKHelperSubscriptionInfo.swift
[9/19] Compiling SKHelperCore SKHelperEntitlementState.swift
[10/19] Compiling SKHelperCore SKHelperProduct.swift
[11/19] Compiling SKHelperCore SKHelperPurchaseInfo.swift
[12/19] Compiling SKHelperCore SKHelperLog.swift
[13/19] Compiling SKHelperCore SKHelperNotification.swift
[14/19] Compiling SKHelperCore resource_bundle_accessor.swift
[15/19] Compiling SKHelperCore SKHelperConfiguration.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[16/19] Compiling SKHelperCore SKHelperConstants.swift
[17/19] Emitting module SKHelperCore
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:137:5: error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 135 |     /// Stop listening for App Store transactions, purchase intents and subscription changes.
 136 |     ///
 137 |     @MainActor
     |     `- error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 138 |     deinit {
 139 |         transactionListener?.cancel()
[18/19] Compiling SKHelperCore SKHelper+Extensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:137:5: error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 135 |     /// Stop listening for App Store transactions, purchase intents and subscription changes.
 136 |     ///
 137 |     @MainActor
     |     `- error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 138 |     deinit {
 139 |         transactionListener?.cancel()
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:139:9: error: main actor-isolated property 'transactionListener' can not be referenced from a nonisolated context
  91 |
  92 |     /// Handler for App Store transactions.
  93 |     private var transactionListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
  94 |
  95 |     /// Handler for purchase intents from App Store-promoted IAPs.
     :
 137 |     @MainActor
 138 |     deinit {
 139 |         transactionListener?.cancel()
     |         `- error: main actor-isolated property 'transactionListener' can not be referenced from a nonisolated context
 140 |         purchaseIntentListener?.cancel()
 141 |         subscriptionListener?.cancel()
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:140:9: error: main actor-isolated property 'purchaseIntentListener' can not be referenced from a nonisolated context
  94 |
  95 |     /// Handler for purchase intents from App Store-promoted IAPs.
  96 |     private var purchaseIntentListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
  97 |
  98 |     /// Handler for changes to subscriptions.
     :
 138 |     deinit {
 139 |         transactionListener?.cancel()
 140 |         purchaseIntentListener?.cancel()
     |         `- error: main actor-isolated property 'purchaseIntentListener' can not be referenced from a nonisolated context
 141 |         subscriptionListener?.cancel()
 142 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:141:9: error: main actor-isolated property 'subscriptionListener' can not be referenced from a nonisolated context
  97 |
  98 |     /// Handler for changes to subscriptions.
  99 |     private var subscriptionListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
 100 |
 101 |     /// The current internal state of `SKHelper`.
     :
 139 |         transactionListener?.cancel()
 140 |         purchaseIntentListener?.cancel()
 141 |         subscriptionListener?.cancel()
     |         `- error: main actor-isolated property 'subscriptionListener' can not be referenced from a nonisolated context
 142 |     }
 143 |
[19/19] Compiling SKHelperCore SKHelper.swift
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:137:5: error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 135 |     /// Stop listening for App Store transactions, purchase intents and subscription changes.
 136 |     ///
 137 |     @MainActor
     |     `- error: 'isolated' deinit requires frontend flag -enable-experimental-feature IsolatedDeinit to enable the usage of this language feature
 138 |     deinit {
 139 |         transactionListener?.cancel()
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:139:9: error: main actor-isolated property 'transactionListener' can not be referenced from a nonisolated context
  91 |
  92 |     /// Handler for App Store transactions.
  93 |     private var transactionListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
  94 |
  95 |     /// Handler for purchase intents from App Store-promoted IAPs.
     :
 137 |     @MainActor
 138 |     deinit {
 139 |         transactionListener?.cancel()
     |         `- error: main actor-isolated property 'transactionListener' can not be referenced from a nonisolated context
 140 |         purchaseIntentListener?.cancel()
 141 |         subscriptionListener?.cancel()
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:140:9: error: main actor-isolated property 'purchaseIntentListener' can not be referenced from a nonisolated context
  94 |
  95 |     /// Handler for purchase intents from App Store-promoted IAPs.
  96 |     private var purchaseIntentListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
  97 |
  98 |     /// Handler for changes to subscriptions.
     :
 138 |     deinit {
 139 |         transactionListener?.cancel()
 140 |         purchaseIntentListener?.cancel()
     |         `- error: main actor-isolated property 'purchaseIntentListener' can not be referenced from a nonisolated context
 141 |         subscriptionListener?.cancel()
 142 |     }
/Users/admin/builder/spi-builder-workspace/Sources/SKHelperCore/Core/SKHelper.swift:141:9: error: main actor-isolated property 'subscriptionListener' can not be referenced from a nonisolated context
  97 |
  98 |     /// Handler for changes to subscriptions.
  99 |     private var subscriptionListener: Task<Void, any Error>? = nil
     |                 `- note: property declared here
 100 |
 101 |     /// The current internal state of `SKHelper`.
     :
 139 |         transactionListener?.cancel()
 140 |         purchaseIntentListener?.cancel()
 141 |         subscriptionListener?.cancel()
     |         `- error: main actor-isolated property 'subscriptionListener' can not be referenced from a nonisolated context
 142 |     }
 143 |
BUILD FAILURE 6.1 macosSpm