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Build Information

Failed to build SlideToConfirm, reference main (298699), with Swift 6.1 for macOS (SPM) on 14 Aug 2026 22:20:02 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/o-danylenko/Slide-To-Button.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/o-danylenko/Slide-To-Button
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 298699c Rewrite the README for a reader, not a reviewer
Cloned https://github.com/o-danylenko/Slide-To-Button.git
Revision (git rev-parse @):
298699c90ebf3f6ee88641665f96ad7ce775adce
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/o-danylenko/Slide-To-Button.git at main
========================================
Build
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Selected platform:         macosSpm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/o-danylenko/Slide-To-Button.git
https://github.com/o-danylenko/Slide-To-Button.git
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SlideToConfirm",
  "name" : "SlideToConfirm",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "17.0"
    },
    {
      "name" : "macos",
      "version" : "14.0"
    }
  ],
  "products" : [
    {
      "name" : "SlideToConfirm",
      "targets" : [
        "SlideToConfirm"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SlideToConfirmTests",
      "module_type" : "SwiftTarget",
      "name" : "SlideToConfirmTests",
      "path" : "Tests/SlideToConfirmTests",
      "sources" : [
        "SlideGeometryTests.swift",
        "SlideStateTests.swift"
      ],
      "target_dependencies" : [
        "SlideToConfirm"
      ],
      "type" : "test"
    },
    {
      "c99name" : "SlideToConfirm",
      "module_type" : "SwiftTarget",
      "name" : "SlideToConfirm",
      "path" : "Sources/SlideToConfirm",
      "product_memberships" : [
        "SlideToConfirm"
      ],
      "resources" : [
        {
          "path" : "/Users/admin/builder/spi-builder-workspace/Sources/SlideToConfirm/SlideWake.metal",
          "rule" : {
            "process" : {
            }
          }
        }
      ],
      "sources" : [
        "SlideFill.swift",
        "SlideGeometry.swift",
        "SlideKnob.swift",
        "SlideState.swift",
        "SlideStyle.swift",
        "SlideToConfirm.swift",
        "SlideTrack.swift",
        "SlideWake.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.0"
}
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
Building for debugging...
[0/3] Write sources
[1/3] Copying SlideWake.metal
[2/3] Write swift-version-2F0A5646E1D333AE.txt
[4/13] Compiling SlideToConfirm SlideKnob.swift
[5/13] Compiling SlideToConfirm SlideTrack.swift
/Users/admin/builder/spi-builder-workspace/Sources/SlideToConfirm/SlideTrack.swift:70:23: error: call to main actor-isolated instance method 'knobWidth(labelHeight:)' in a synchronous nonisolated context
 68 |             .alignmentGuide(HorizontalAlignment.center) { dimensions in
 69 |                 dimensions[HorizontalAlignment.center]
 70 |                     + knobWidth(labelHeight: dimensions.height) / 2
    |                       `- error: call to main actor-isolated instance method 'knobWidth(labelHeight:)' in a synchronous nonisolated context
 71 |             }
 72 |             .frame(maxWidth: .infinity, alignment: .center)
    :
 91 |     /// from the label itself when it is not — in which case the label is the tallest child, so its
 92 |     /// height *is* the row's. Exact either way, and no measurement pass to get it.
 93 |     private func knobWidth(labelHeight: CGFloat?) -> CGFloat {
    |                  |- note: calls to instance method 'knobWidth(labelHeight:)' from outside of its actor context are implicitly asynchronous
    |                  `- note: main actor isolation inferred from conformance to protocol 'View'
 94 |         if let height { return max(0, height - inset * 2) }
 95 |         return labelHeight ?? 0
/Users/admin/builder/spi-builder-workspace/Sources/SlideToConfirm/SlideTrack.swift:109:29: error: value of type 'Color' has no member 'glassEffect'
107 |         case .glass(let tint, let fallback):
108 |             if #available(iOS 26, macOS 26, *) {
109 |                 Color.clear.glassEffect(.regular.tint(tint), in: Capsule())
    |                             `- error: value of type 'Color' has no member 'glassEffect'
110 |             } else {
111 |                 Capsule().fill(fallback)
/Users/admin/builder/spi-builder-workspace/Sources/SlideToConfirm/SlideTrack.swift:109:42: error: cannot infer contextual base in reference to member 'regular'
107 |         case .glass(let tint, let fallback):
108 |             if #available(iOS 26, macOS 26, *) {
109 |                 Color.clear.glassEffect(.regular.tint(tint), in: Capsule())
    |                                          `- error: cannot infer contextual base in reference to member 'regular'
110 |             } else {
111 |                 Capsule().fill(fallback)
[6/13] Compiling SlideToConfirm resource_bundle_accessor.swift
[7/13] Compiling SlideToConfirm SlideFill.swift
[8/13] Compiling SlideToConfirm SlideGeometry.swift
[9/13] Emitting module SlideToConfirm
[10/13] Compiling SlideToConfirm SlideToConfirm.swift
[11/13] Compiling SlideToConfirm SlideState.swift
[12/13] Compiling SlideToConfirm SlideStyle.swift
[13/13] Compiling SlideToConfirm SlideWake.swift
/Users/admin/builder/spi-builder-workspace/Sources/SlideToConfirm/SlideWake.swift:155:17: error: call to main actor-isolated instance method 'knob(in:)' in a synchronous nonisolated context
153 |             // born of the gesture that caused it.
154 |             .onGeometryChange(for: SlideKnob.self) { proxy in
155 |                 knob(in: SlideGeometry(trackSize: proxy.size, inset: inset))
    |                 `- error: call to main actor-isolated instance method 'knob(in:)' in a synchronous nonisolated context
156 |             } action: { knob in
157 |                 trail.follow(knob, wake: wake)
    :
163 |
164 |     /// Where the ripples originate, and whether a finger is down.
165 |     private func knob(in geometry: SlideGeometry) -> SlideKnob {
    |                  |- note: calls to instance method 'knob(in:)' from outside of its actor context are implicitly asynchronous
    |                  `- note: main actor isolation inferred from conformance to protocol 'ViewModifier'
166 |         let offset = geometry.handleOffset(at: state.progress)
167 |         let radius = geometry.handleDiameter / 2
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
[2/11] Compiling SlideToConfirm resource_bundle_accessor.swift
[3/11] Compiling SlideToConfirm SlideState.swift
[4/11] Compiling SlideToConfirm SlideKnob.swift
[5/11] Compiling SlideToConfirm SlideStyle.swift
[6/11] Emitting module SlideToConfirm
[7/11] Compiling SlideToConfirm SlideToConfirm.swift
[8/11] Compiling SlideToConfirm SlideFill.swift
[9/11] Compiling SlideToConfirm SlideWake.swift
/Users/admin/builder/spi-builder-workspace/Sources/SlideToConfirm/SlideWake.swift:155:17: error: call to main actor-isolated instance method 'knob(in:)' in a synchronous nonisolated context
153 |             // born of the gesture that caused it.
154 |             .onGeometryChange(for: SlideKnob.self) { proxy in
155 |                 knob(in: SlideGeometry(trackSize: proxy.size, inset: inset))
    |                 `- error: call to main actor-isolated instance method 'knob(in:)' in a synchronous nonisolated context
156 |             } action: { knob in
157 |                 trail.follow(knob, wake: wake)
    :
163 |
164 |     /// Where the ripples originate, and whether a finger is down.
165 |     private func knob(in geometry: SlideGeometry) -> SlideKnob {
    |                  |- note: calls to instance method 'knob(in:)' from outside of its actor context are implicitly asynchronous
    |                  `- note: main actor isolation inferred from conformance to protocol 'ViewModifier'
166 |         let offset = geometry.handleOffset(at: state.progress)
167 |         let radius = geometry.handleDiameter / 2
[10/11] Compiling SlideToConfirm SlideGeometry.swift
[11/11] Compiling SlideToConfirm SlideTrack.swift
/Users/admin/builder/spi-builder-workspace/Sources/SlideToConfirm/SlideTrack.swift:70:23: error: call to main actor-isolated instance method 'knobWidth(labelHeight:)' in a synchronous nonisolated context
 68 |             .alignmentGuide(HorizontalAlignment.center) { dimensions in
 69 |                 dimensions[HorizontalAlignment.center]
 70 |                     + knobWidth(labelHeight: dimensions.height) / 2
    |                       `- error: call to main actor-isolated instance method 'knobWidth(labelHeight:)' in a synchronous nonisolated context
 71 |             }
 72 |             .frame(maxWidth: .infinity, alignment: .center)
    :
 91 |     /// from the label itself when it is not — in which case the label is the tallest child, so its
 92 |     /// height *is* the row's. Exact either way, and no measurement pass to get it.
 93 |     private func knobWidth(labelHeight: CGFloat?) -> CGFloat {
    |                  |- note: calls to instance method 'knobWidth(labelHeight:)' from outside of its actor context are implicitly asynchronous
    |                  `- note: main actor isolation inferred from conformance to protocol 'View'
 94 |         if let height { return max(0, height - inset * 2) }
 95 |         return labelHeight ?? 0
/Users/admin/builder/spi-builder-workspace/Sources/SlideToConfirm/SlideTrack.swift:109:29: error: value of type 'Color' has no member 'glassEffect'
107 |         case .glass(let tint, let fallback):
108 |             if #available(iOS 26, macOS 26, *) {
109 |                 Color.clear.glassEffect(.regular.tint(tint), in: Capsule())
    |                             `- error: value of type 'Color' has no member 'glassEffect'
110 |             } else {
111 |                 Capsule().fill(fallback)
/Users/admin/builder/spi-builder-workspace/Sources/SlideToConfirm/SlideTrack.swift:109:42: error: cannot infer contextual base in reference to member 'regular'
107 |         case .glass(let tint, let fallback):
108 |             if #available(iOS 26, macOS 26, *) {
109 |                 Color.clear.glassEffect(.regular.tint(tint), in: Capsule())
    |                                          `- error: cannot infer contextual base in reference to member 'regular'
110 |             } else {
111 |                 Capsule().fill(fallback)
BUILD FAILURE 6.1 macosSpm