Build Information
Failed to build quiver-cookbook, reference main (5f2cc9), with Swift 6.0 for macOS (SPM) on 20 Apr 2026 06:14:21 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64Build Log
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
========================================
Clone URL: https://github.com/waynewbishop/quiver-cookbook.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/waynewbishop/quiver-cookbook
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 5f2cc92 docs: new recipies and newsletter update..
Cloned https://github.com/waynewbishop/quiver-cookbook.git
Revision (git rev-parse @):
5f2cc923e250419d24ad2a3f1f10a584643d1bc9
SUCCESS checkout https://github.com/waynewbishop/quiver-cookbook.git at main
========================================
Build
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Selected platform: macosSpm
Swift version: 6.0
Building package at path: $PWD
https://github.com/waynewbishop/quiver-cookbook.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.2.0.app xcrun swift build --arch arm64
Building for debugging...
[0/3] Write sources
[2/3] Write swift-version-5BDAB9E9C0126B9D.txt
[4/34] Emitting module Quiver
[5/37] Compiling Quiver LinearRegression.swift
[6/37] Compiling Quiver ArrayInfo.swift
[7/37] Compiling Quiver Fraction.swift
[8/37] Compiling Quiver ArrayStatistics.swift
[9/37] Compiling Quiver VectorOperations.swift
[10/37] Compiling Quiver Quiver.swift
[11/37] Compiling Quiver _VectorStatistics.swift
[12/37] Compiling Quiver ArrayCharts.swift
[13/37] Compiling Quiver ArrayMetrics.swift
[14/37] Compiling Quiver ArraySampling.swift
[15/37] Compiling Quiver GaussianNaiveBayes.swift
[16/37] Compiling Quiver KMeansClustering.swift
[17/37] Compiling Quiver KNearestNeighbors.swift
[18/37] Compiling Quiver _Vector.swift
[19/37] Compiling Quiver _VectorComparable.swift
[20/37] Compiling Quiver _VectorGeneration.swift
[21/37] Compiling Quiver _VectorMetrics.swift
[22/37] Compiling Quiver ArrayBoolean.swift
[23/37] Compiling Quiver ArrayBroadcast.swift
[24/37] Compiling Quiver ArrayElementwise.swift
[25/37] Compiling Quiver _VectorOperations.swift
[26/37] Compiling Quiver _VectorRegression.swift
[27/37] Compiling Quiver _VectorReshape.swift
[28/37] Compiling Quiver _VectorSampling.swift
[29/37] Compiling Quiver ArrayReshape.swift
[30/37] Compiling Quiver Classifier.swift
[31/37] Compiling Quiver FeatureScaler.swift
[32/37] Compiling Quiver StringExtensions.swift
[33/37] Compiling Quiver ArrayAngles.swift
[34/37] Compiling Quiver ArrayArithmetic.swift
[35/37] Compiling Quiver Panel.swift
[36/37] Compiling Quiver ArrayGeneration.swift
[37/37] Compiling Quiver ArrayRandom.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[38/78] Emitting module Recipes
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[39/82] Compiling Recipes 01-how-far-is-home.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[40/82] Compiling Recipes 02-normalize-a-direction.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[41/82] Compiling Recipes 03-are-these-perpendicular.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[42/82] Compiling Recipes 04-find-the-most-similar-item.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[43/82] Compiling Recipes 05-king-minus-man-plus-woman.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[44/82] Compiling Recipes 37-wing-panel-rivet-inspection.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[45/82] Compiling Recipes 38-wind-tunnel-lift-predictor.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[46/82] Compiling Recipes 39-true-effort-classification.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[47/82] Compiling Recipes 40-running-stress-breakdown.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[48/82] Compiling Recipes 33-testing-equality.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[49/82] Compiling Recipes 34-balance-imbalanced-data.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[50/82] Compiling Recipes 35-save-and-load-a-model.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[51/82] Compiling Recipes 36-can-swift-drive-a-car.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[52/82] Compiling Recipes 25-evaluate-a-classifier.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[53/82] Compiling Recipes 26-evaluate-a-regression.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[54/82] Compiling Recipes 27-correlation-matrix.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[55/82] Compiling Recipes 28-solve-a-linear-system.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[56/82] Compiling Recipes 11-reshape-without-losing-data.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[57/82] Compiling Recipes 12-rotate-a-point.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[58/82] Compiling Recipes 13-multiply-two-matrices.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[59/82] Compiling Recipes 14-can-this-matrix-be-inverted.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[60/82] Compiling Recipes 15-predict-a-house-price.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[61/82] Compiling Recipes 06-detect-near-duplicates.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[62/82] Compiling Recipes 07-describe-a-dataset.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[63/82] Compiling Recipes 08-find-the-outliers.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[64/82] Compiling Recipes 09-smooth-a-noisy-signal.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[65/82] Compiling Recipes 10-build-a-histogram.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[66/82] Compiling Recipes 21-search-by-meaning.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[67/82] Compiling Recipes 22-organize-data-with-panel.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[68/82] Compiling Recipes 23-project-a-vector.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[69/82] Compiling Recipes 24-from-scores-to-probabilities.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[70/82] Compiling Recipes 29-find-the-best-k.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[71/82] Compiling Recipes 30-generate-arrays.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[72/82] Compiling Recipes 31-broadcasting.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[73/82] Compiling Recipes 32-stratified-split.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[74/82] Compiling Recipes 16-classify-with-naive-bayes.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[75/82] Compiling Recipes 17-find-the-nearest-neighbor.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[76/82] Compiling Recipes 18-cluster-without-labels.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[77/82] Compiling Recipes 19-scale-features-before-training.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[78/82] Compiling Recipes 20-split-train-evaluate.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[79/82] Compiling Recipes 41-recovery-prediction.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[80/82] Compiling Recipes 42-delivery-route-optimizer.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[81/82] Compiling Recipes 43-true-effort-score.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
[82/82] Compiling Recipes 44-adaptive-effort-model.swift
/Users/admin/builder/spi-builder-workspace/Sources/Recipes/01-how-far-is-home.swift:1:8: error: no such module 'Playgrounds'
1 | import Playgrounds
| `- error: no such module 'Playgrounds'
2 | import Quiver
3 |
Fetching https://github.com/waynewbishop/quiver.git
[1/1881] Fetching quiver
Fetched https://github.com/waynewbishop/quiver.git from cache (0.99s)
Computing version for https://github.com/waynewbishop/quiver.git
Computed https://github.com/waynewbishop/quiver.git at 1.0.1 (0.45s)
Creating working copy for https://github.com/waynewbishop/quiver.git
Working copy of https://github.com/waynewbishop/quiver.git resolved at 1.0.1
BUILD FAILURE 6.0 macosSpm