Fix flaky Build iOS: drop the .dart_tool cache from the iOS build job#27
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A restored .dart_tool carries stale native-assets build fingerprints, making `flutter build ios` skip building FFI packages (objective_c) and fail with "native assets specification references objective_c, which was not found in build/native_assets/ios". Reproduced today: every cold-cache iOS build passed, every warm-cache one failed. Analyze/Test keep their pub cache (no native build, pass warm). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Build iOS started failing intermittently with:
The pattern (4 runs today): every cold-cache build passed, every warm-cache build failed — same commit, same image, same dependency resolution. The cached
.dart_toolcarries native-assets build fingerprints, so on restore Flutter thinks objective_c's native library is already built and skips it.Removes the pub/
.dart_toolcache step from the Build iOS job only (~1 min slower, deterministic). Analyze/Test keep their caches — they don't run native builds and pass warm. Also deleted the currently-poisoned cache entries so in-flight PRs can rerun clean.🤖 Generated with Claude Code