Swift Package Index

Build Information

Failed to build Undertow, reference main (4968e6), with Swift 6.4 for macOS (SPM) on 27 Sep 2026 01:05:25 UTC.

Build Command

env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/MaksimG82/Undertow.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/MaksimG82/Undertow
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 4968e6b CONTRIBUTING.md with new-effect walkthrough (#35)
Cloned https://github.com/MaksimG82/Undertow.git
Revision (git rev-parse @):
4968e6b146f3d8eead535ccb96f7344f29aba2ef
SUCCESS checkout https://github.com/MaksimG82/Undertow.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.4
Building package at path:  $PWD
https://github.com/MaksimG82/Undertow.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-27.0.0-Release.Candidate.app xcrun swift build --arch arm64
Building for debugging...
[Pre-planning 1 / 95]
[Planning deferred tasks]
[48 / 58] Undertow_Undertow
[49 / 58]
[50 / 59] Undertow
[60 / 136]
[63 / 136]
[71 / 136]
[73 / 136]
[74 / 136]
[80 / 136]
[82 / 136]
[85 / 136]
[91 / 136]
[94 / 136]
[96 / 136]
[97 / 136]
[107 / 136]
[109 / 136]
[110 / 136]
[113 / 136]
[115 / 136]
[127 / 136] Undertow
error: SwiftCompile normal arm64 failed with a nonzero exit code. Command line:     cd /Users/admin/builder

/Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectCoordinator/MaskStore.swift:12:2: error: 'Observable()' is only available in macOS 14.0 or newer
10 | /// A shared observable store that holds target masks reported by `.effectTarget()`
11 | /// descendants.
12 | @Observable
   |  `- error: 'Observable()' is only available in macOS 14.0 or newer
13 | final class MaskStore {
14 |     /// Masks reported by all `.effectTarget()` targets. Collected via standard SwiftUI
macro expansion @Observable:1:2: error: 'ObservationTracked()' is only available in macOS 14.0 or newer
`- /Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectCoordinator/MaskStore.swift:16:5: note: expanded code originates here
10 | /// A shared observable store that holds target masks reported by `.effectTarget()`
11 | /// descendants.
12 | @Observable
   | `- note: in expansion of macro 'Observable' on property 'targetMasks' here
13 | final class MaskStore {
   |             `- note: add '@available' attribute to enclosing class
14 |     /// Masks reported by all `.effectTarget()` targets. Collected via standard SwiftUI
15 |     /// `PreferenceKey` propagation (`EffectTargetFramePreferenceKey`).
16 |     var targetMasks: Set<TargetMask> = []
   +--- macro expansion @Observable ------------------------------------
   |1 | @ObservationTracked
   |  |  `- error: 'ObservationTracked()' is only available in macOS 14.0 or newer
   +--------------------------------------------------------------------
17 | }
18 |
macro expansion @Observable:1:2: error: 'ObservationIgnored()' is only available in macOS 14.0 or newer
`- /Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectCoordinator/MaskStore.swift:17:1: note: expanded code originates here
10 | /// A shared observable store that holds target masks reported by `.effectTarget()`
11 | /// descendants.
12 | @Observable
   | `- note: in expansion of macro 'Observable' on class 'MaskStore' here
13 | final class MaskStore {
   |             `- note: add '@available' attribute to enclosing class
14 |     /// Masks reported by all `.effectTarget()` targets. Collected via standard SwiftUI
15 |     /// `PreferenceKey` propagation (`EffectTargetFramePreferenceKey`).
16 |     var targetMasks: Set<TargetMask> = []
17 | }
   +--- macro expansion @Observable ------------------------------------
   | 1 | @ObservationIgnored private let _$observationRegistrar = Observation.ObservationRegistrar()
   |   |  `- error: 'ObservationIgnored()' is only available in macOS 14.0 or newer
   | 2 |
   | 3 | internal nonisolated func access<$s8Undertow9MaskStore10ObservablefMm_6MemberfMu_>(
   +--------------------------------------------------------------------
18 |
macro expansion @ObservationTracked:4:6: error: 'ObservationIgnored()' is only available in macOS 14.0 or newer
`- /Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectCoordinator/MaskStore.swift:16:42: note: expanded code originates here
11 | /// descendants.
12 | @Observable
13 | final class MaskStore {
   |             `- note: add '@available' attribute to enclosing class
14 |     /// Masks reported by all `.effectTarget()` targets. Collected via standard SwiftUI
15 |     /// `PreferenceKey` propagation (`EffectTargetFramePreferenceKey`).
16 |     var targetMasks: Set<TargetMask> = []
   +--- macro expansion @ObservationTracked ----------------------------
   |2 |     /// `PreferenceKey` propagation (`EffectTargetFramePreferenceKey`).
   |3 |
   |4 |     @ObservationIgnored
   |  |      `- error: 'ObservationIgnored()' is only available in macOS 14.0 or newer
   |5 | private  var _targetMasks: Set<TargetMask> = []
   +--------------------------------------------------------------------
17 | }
18 |
macro expansion @Observable:1:70: error: 'ObservationRegistrar' is only available in macOS 14.0 or newer
`- /Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectCoordinator/MaskStore.swift:17:1: note: expanded code originates here
10 | /// A shared observable store that holds target masks reported by `.effectTarget()`
11 | /// descendants.
12 | @Observable
   | `- note: in expansion of macro 'Observable' on class 'MaskStore' here
13 | final class MaskStore {
   |             `- note: add '@available' attribute to enclosing class
14 |     /// Masks reported by all `.effectTarget()` targets. Collected via standard SwiftUI
15 |     /// `PreferenceKey` propagation (`EffectTargetFramePreferenceKey`).
16 |     var targetMasks: Set<TargetMask> = []
17 | }
   +--- macro expansion @Observable ------------------------------------
   | 1 | @ObservationIgnored private let _$observationRegistrar = Observation.ObservationRegistrar()
   |   |                                                                      `- error: 'ObservationRegistrar' is only available in macOS 14.0 or newer
   | 2 |
   | 3 | internal nonisolated func access<$s8Undertow9MaskStore10ObservablefMm_6MemberfMu_>(
   +--------------------------------------------------------------------
18 |
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectCoordinator/MaskStore.swift:12:2: error: 'Observable()' is only available in macOS 14.0 or newer
10 | /// A shared observable store that holds target masks reported by `.effectTarget()`
11 | /// descendants.
12 | @Observable
   |  `- error: 'Observable()' is only available in macOS 14.0 or newer
13 | final class MaskStore {
   |             `- note: add '@available' attribute to enclosing class
14 |     /// Masks reported by all `.effectTarget()` targets. Collected via standard SwiftUI
15 |     /// `PreferenceKey` propagation (`EffectTargetFramePreferenceKey`).
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+RGBInversionLibrary.swift:12:37: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the color-inversion effect.
12 |     static let rgbInversionLibrary: ShaderLibrary = {
   |                |                    `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "RGBInversion-iphonesimulator"
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+RGBInversionLibrary.swift:25:16: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the color-inversion effect.
12 |     static let rgbInversionLibrary: ShaderLibrary = {
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "RGBInversion-iphonesimulator"
   :
23 |             fatalError("Undertow: missing Metal library '\(name).metallib' in bundle.")
24 |         }
25 |         return ShaderLibrary(url: url)
   |                |- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add 'if #available' version check
26 |     }()
27 | }
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+RGBInversionLibrary.swift:10:11: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | |         `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the color-inversion effect.
12 |     static let rgbInversionLibrary: ShaderLibrary = {
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+colorPlanesLibrary.swift:12:36: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the RGB-shift/glitch color-planes effect
12 |     static let colorPlanesLibrary: ShaderLibrary = {
   |                |                   `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "ColorPlanes-iphonesimulator"
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+colorPlanesLibrary.swift:25:16: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the RGB-shift/glitch color-planes effect
12 |     static let colorPlanesLibrary: ShaderLibrary = {
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "ColorPlanes-iphonesimulator"
   :
23 |             fatalError("Undertow: missing Metal library '\(name).metallib' in bundle.")
24 |         }
25 |         return ShaderLibrary(url: url)
   |                |- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add 'if #available' version check
26 |     }()
27 | }
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+colorPlanesLibrary.swift:10:11: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | |         `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the RGB-shift/glitch color-planes effect
12 |     static let colorPlanesLibrary: ShaderLibrary = {
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+embossLibrary.swift:12:31: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the embossing/relief effect.
12 |     static let embossLibrary: ShaderLibrary = {
   |                |              `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "Emboss-iphonesimulator"
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+embossLibrary.swift:25:16: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the embossing/relief effect.
12 |     static let embossLibrary: ShaderLibrary = {
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "Emboss-iphonesimulator"
   :
23 |             fatalError("Undertow: missing Metal library '\(name).metallib' in bundle.")
24 |         }
25 |         return ShaderLibrary(url: url)
   |                |- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add 'if #available' version check
26 |     }()
27 | }
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+embossLibrary.swift:10:11: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | |         `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the embossing/relief effect.
12 |     static let embossLibrary: ShaderLibrary = {
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+gaussianBlurLibrary.swift:12:37: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the two-pass separable Gaussian blur effect.
12 |     static let gaussianBlurLibrary: ShaderLibrary = {
   |                |                    `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "GaussianBlur-iphonesimulator"
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+gaussianBlurLibrary.swift:25:16: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the two-pass separable Gaussian blur effect.
12 |     static let gaussianBlurLibrary: ShaderLibrary = {
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "GaussianBlur-iphonesimulator"
   :
23 |             fatalError("Undertow: missing Metal library '\(name).metallib' in bundle.")
24 |         }
25 |         return ShaderLibrary(url: url)
   |                |- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add 'if #available' version check
26 |     }()
27 | }
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+gaussianBlurLibrary.swift:10:11: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | |         `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the two-pass separable Gaussian blur effect.
12 |     static let gaussianBlurLibrary: ShaderLibrary = {
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+rainbowNoiseLibrary.swift:12:37: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the dynamic multi-colored-noise effect.
12 |     static let rainbowNoiseLibrary: ShaderLibrary = {
   |                |                    `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "RainbowNoise-iphonesimulator"
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+rainbowNoiseLibrary.swift:25:16: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the dynamic multi-colored-noise effect.
12 |     static let rainbowNoiseLibrary: ShaderLibrary = {
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "RainbowNoise-iphonesimulator"
   :
23 |             fatalError("Undertow: missing Metal library '\(name).metallib' in bundle.")
24 |         }
25 |         return ShaderLibrary(url: url)
   |                |- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add 'if #available' version check
26 |     }()
27 | }
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+rainbowNoiseLibrary.swift:10:11: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | |         `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the dynamic multi-colored-noise effect.
12 |     static let rainbowNoiseLibrary: ShaderLibrary = {
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+shimmerLibrary.swift:12:32: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the shimmering gradient-sweep effect.
12 |     static let shimmerLibrary: ShaderLibrary = {
   |                |               `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "Shimmer-iphonesimulator"
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+shimmerLibrary.swift:25:16: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the shimmering gradient-sweep effect.
12 |     static let shimmerLibrary: ShaderLibrary = {
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "Shimmer-iphonesimulator"
   :
23 |             fatalError("Undertow: missing Metal library '\(name).metallib' in bundle.")
24 |         }
25 |         return ShaderLibrary(url: url)
   |                |- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add 'if #available' version check
26 |     }()
27 | }
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+shimmerLibrary.swift:10:11: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | |         `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the shimmering gradient-sweep effect.
12 |     static let shimmerLibrary: ShaderLibrary = {
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+waterLibrary.swift:12:30: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the water-ripple distortion effect.
12 |     static let waterLibrary: ShaderLibrary = {
   |                |             `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "Water-iphonesimulator"
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+waterLibrary.swift:25:16: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the water-ripple distortion effect.
12 |     static let waterLibrary: ShaderLibrary = {
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "Water-iphonesimulator"
   :
23 |             fatalError("Undertow: missing Metal library '\(name).metallib' in bundle.")
24 |         }
25 |         return ShaderLibrary(url: url)
   |                |- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add 'if #available' version check
26 |     }()
27 | }
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+waterLibrary.swift:10:11: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | |         `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the water-ripple distortion effect.
12 |     static let waterLibrary: ShaderLibrary = {
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+waveLibrary.swift:12:29: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the uniform wave-distortion effect.
12 |     static let waveLibrary: ShaderLibrary = {
   |                |            `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "Wave-iphonesimulator"
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+waveLibrary.swift:25:16: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the uniform wave-distortion effect.
12 |     static let waveLibrary: ShaderLibrary = {
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "Wave-iphonesimulator"
   :
23 |             fatalError("Undertow: missing Metal library '\(name).metallib' in bundle.")
24 |         }
25 |         return ShaderLibrary(url: url)
   |                |- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add 'if #available' version check
26 |     }()
27 | }
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+waveLibrary.swift:10:11: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | |         `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the uniform wave-distortion effect.
12 |     static let waveLibrary: ShaderLibrary = {
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+whiteNoiseLibrary.swift:12:35: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the dynamic grayscale-noise effect.
12 |     static let whiteNoiseLibrary: ShaderLibrary = {
   |                |                  `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "WhiteNoise-iphonesimulator"
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+whiteNoiseLibrary.swift:25:16: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the dynamic grayscale-noise effect.
12 |     static let whiteNoiseLibrary: ShaderLibrary = {
   |                `- note: add '@available' attribute to enclosing static property
13 | #if targetEnvironment(simulator)
14 |         let name = "WhiteNoise-iphonesimulator"
   :
23 |             fatalError("Undertow: missing Metal library '\(name).metallib' in bundle.")
24 |         }
25 |         return ShaderLibrary(url: url)
   |                |- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   |                `- note: add 'if #available' version check
26 |     }()
27 | }
/Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+whiteNoiseLibrary.swift:10:11: error: 'ShaderLibrary' is only available in macOS 14.0 or newer
 8 | import SwiftUI
 9 |
10 | extension ShaderLibrary {
   | |         `- error: 'ShaderLibrary' is only available in macOS 14.0 or newer
   | `- note: add '@available' attribute to enclosing extension
11 |     /// The precompiled Metal shader library for the dynamic grayscale-noise effect.
12 |     static let whiteNoiseLibrary: ShaderLibrary = {
Failed frontend command:
/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/DerivedSources/resource_bundle_accessor.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Core/Effect.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Core/EnvironmentValues.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectCoordinator/EffectCoordinatorModifier.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectCoordinator/MaskStore.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectSource/EffectSourceViewModifier.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectTarget/EffectTargetFramePreferenceKey.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectTarget/EffectTargetViewModifier.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/EffectTarget/TargetMask.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+RGBInversionLibrary.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+colorPlanesLibrary.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+embossLibrary.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+gaussianBlurLibrary.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+rainbowNoiseLibrary.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+shimmerLibrary.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+waterLibrary.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+waveLibrary.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/ShaderLibrary+whiteNoiseLibrary.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+colorPlanesEffect.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+effectCoordinator.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+effectSource.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+effectTarget.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+embossEffect.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+gaussianBlurEffect.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+invertedEffect.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+rainbowNoiseEffect.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+shimmerEffect.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+waterEffect.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+waveEffect.swift /Users/admin/builder/spi-builder-workspace/Sources/Undertow/Extensions/View+whiteNoiseEffect.swift -target arm64-apple-macos12.0 -disable-cross-import-overlay-search -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libFoundationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#FoundationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libObservationMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#ObservationMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libPreviewsMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#PreviewsMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#SwiftMacros -load-resolved-plugin /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins/libSwiftUIMacros.dylib\#/Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server\#SwiftUIMacros -disable-implicit-swift-modules -Xcc -fno-implicit-modules -Xcc -fno-implicit-module-maps -explicit-swift-module-map-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/Objects-normal/arm64/Undertow-dependencies-1.json -Xllvm -aarch64-use-tbi -enable-objc-interop -stack-check -sdk /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX27.0.sdk -I /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -Isystem /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug -F /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -module-cache-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/SwiftExplicitPrecompiledModules -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 6 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_AVAILABLE -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -validate-clang-modules-once -clang-build-session-file /Users/admin/builder/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /Users/admin/builder -enable-anonymous-context-mangled-names -file-compilation-dir /Users/admin/builder -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -ivfsstatcache -Xcc /Users/admin/builder/spi-builder-workspace/.build/out/SDKStatCaches.noindex/macosx27.0-26A425-80c5bbf1d171475443272936d42f90a36a22442a12e9d48fe1a705f55a1adfc4.sdkstatcache -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Products/Debug/include -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/DerivedSources-normal/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/DerivedSources/arm64 -Xcc -I/Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name Undertow -package-name spi_builder_workspace -const-gather-protocols-file /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/Objects-normal/arm64/Undertow_const_extract_protocols.json -disable-clang-spi -clang-target arm64-apple-macos27.0 -target-sdk-version 27.0 -target-sdk-name macosx27.0 -in-process-plugin-server-path /Applications/Xcode-27.0.0-Release.Candidate.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -emit-module-doc-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/Objects-normal/arm64/Undertow.swiftdoc -emit-module-source-info-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/Objects-normal/arm64/Undertow.swiftsourceinfo -emit-objc-header-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/Objects-normal/arm64/Undertow-Swift.h -serialize-diagnostics-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/Objects-normal/arm64/Undertow-primary-emit-module.dia -emit-dependencies-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/Objects-normal/arm64/Undertow-primary-emit-module.d -parse-as-library -o /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/Objects-normal/arm64/Undertow.swiftmodule -emit-abi-descriptor-path /Users/admin/builder/spi-builder-workspace/.build/out/Intermediates.noindex/Undertow.build/Debug/Undertow-t.build/Objects-normal/arm64/Undertow.abi.json
error: Build failed
BUILD FAILURE 6.4 macosSpm