xcodebuild's strict package resolution failed with `Found unhandled
resource at packages/Harness/Corpora`. The Harness target declared the
resource as `.copy("../../Corpora")` (target path `Sources/Harness`
traversing up two levels to the package root). `swift test` accepts
that traversal but xcodebuild's workspace-level walk treats it as
ambiguous.
Fix: move `packages/Harness/Corpora` into `packages/Harness/Sources/Harness/Corpora`
and update the resource declaration to `.copy("Corpora")` (no `..`).
The runtime bundle layout is unchanged because `Bundle.module` flattens
into the same `<bundle>/Corpora/<subdir>/...` structure either way. All
call sites (`NDJSONFixtureCorpus`, `SSEFixtureCorpus`,
`WakeHysteresisCorpus`, etc.) use `subdirectory: "Corpora/<name>"` and
keep working without code changes.
Verified locally: `swift test --package-path packages/Harness` →
63 tests in 9 suites, 0 failures.
Closes the remaining App-target xcodebuild failure that blocked
publish-tag from firing on CI run 25803540736.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
james.maesandClaude Opus 4.7