René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Error when running test with vitest after upgrading from v21.0 to v21.1","articleBody":"### Command\n\ntest\n\n### Is this a regression?\n\n- [x] Yes, this behavior used to work in the previous version\n\n### The previous version in which this bug was not present was\n\n21.0\n\n### Description\n\nWith the latest v21.1.0 version, it's now impossible to run unit-test with vitest when there is scss assets in ng-package.json\nWhen running the command `ng test`, the CLI will stop with error\n```\nError: The {scss file listed in ng-package.json} asset path must start with the project source root.                                                                                                                                                                                                                                \n```\n\n### Minimal Reproduction\n\nI've created a repo with two tags:\n- [Working version 21.0](https://github.com/JulienMichelFr/repro-angular-library-vitest-bug/tree/v21.0)\n- [Not working version 21.1](https://github.com/JulienMichelFr/repro-angular-library-vitest-bug/tree/v21.1)\n\nYou just have to install and then run `ng test ui`\n\n### Exception or Error\n\n```text\nAn exception occurred while creating the test executor:\nError: The ./src/lib/theme.scss asset path must start with the project source root.                                                                                                                                                                                                                                \n    at /{path-to-repo}/repro-angular-library-vitest-bug/node_modules/@angular/build/src/utils/normalize-asset-patterns.js:71:23                                                                                                                                                                   \n    at Array.map (\u003canonymous\u003e)                                                                                                                                                                                                                                                                                     \n    at normalizeAssetPatterns (/{path-to-repo}/repro-angular-library-vitest-bug/node_modules/@angular/build/src/utils/normalize-asset-patterns.js:64:26)                                                                                                                                          \n    at normalizeOptions (/{path-to-repo}/repro-angular-library-vitest-bug/node_modules/@angular/build/src/builders/application/options.js:77:46)                                                                                                                                                  \n    at async buildApplicationInternal (/{path-to-repo}/repro-angular-library-vitest-bug/node_modules/@angular/build/src/builders/application/index.js:86:31)                                                                                                                                      \n    at async runBuildAndTest (/{path-to-repo}/repro-angular-library-vitest-bug/node_modules/@angular/build/src/builders/unit-test/builder.js:158:22)                                                                                                                                              \n    at async execute (/{path-to-repo}/repro-angular-library-vitest-bug/node_modules/@angular/build/src/builders/unit-test/builder.js:330:13)                                                                                                                                                      \n    at async handleAsyncIterator (/{path-to-repo}/repro-angular-library-vitest-bug/node_modules/@angular-devkit/architect/src/api.js:38:28)\n```\n\n### Your Environment\n\n```text\nAngular CLI       : 21.1.0\nAngular           : 21.1.0\nNode.js           : 24.11.1\nPackage Manager   : npm 11.7.0\nOperating System  : linux x64\n\n┌───────────────────────────┬───────────────────┬───────────────────┐\n│ Package                   │ Installed Version │ Requested Version │\n├───────────────────────────┼───────────────────┼───────────────────┤\n│ @angular/build            │ 21.1.0            │ 21.1.0            │\n│ @angular/cli              │ 21.1.0            │ 21.1.0            │\n│ @angular/common           │ 21.1.0            │ 21.1.0            │\n│ @angular/compiler         │ 21.1.0            │ 21.1.0            │\n│ @angular/compiler-cli     │ 21.1.0            │ 21.1.0            │\n│ @angular/core             │ 21.1.0            │ 21.1.0            │\n│ @angular/forms            │ 21.1.0            │ 21.1.0            │\n│ @angular/platform-browser │ 21.1.0            │ 21.1.0            │\n│ @angular/router           │ 21.1.0            │ 21.1.0            │\n│ ng-packagr                │ 21.1.0            │ 21.1.0            │\n│ rxjs                      │ 7.8.2             │ ~7.8.0            │\n│ typescript                │ 5.9.3             │ ~5.9.2            │\n│ vitest                    │ 4.0.17            │ ^4.0.8            │\n└───────────────────────────┴───────────────────┴───────────────────┘\n```\n\n### Anything else relevant?\n\n_No response_","author":{"url":"https://github.com/JulienMichelFr","@type":"Person","name":"JulienMichelFr"},"datePublished":"2026-01-15T11:18:40.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/32305/angular-cli/issues/32305"}