- OS & Version: macOS hosted agents (Azure Pipelines), osx.13 (macOS 13.x), x64 only
- ML.NET Version: current main (MachineLearning-CI)
- .NET Version: per repo global.json (targets .NET 8)
In the MachineLearning-CI pipeline, only the macOS x64 jobs fail at the Install MacOS build dependencies step with:
Bash exited with code '1'
Steps to reproduce the behavior:
- Azure DevOps → Pipelines → MachineLearning-CI.
- Queue on main with defaults.
- Observe MacOS_x64 Debug_Build and MacOS_x64 Release_Build.
- See error
Expected behavior
macOS x64 Debug/Release should install dependencies and proceed to build/tests like other jobs.
Screenshots

Additional context
Likely macOS dependency bootstrap issue, possibly due to:
Homebrew formula drift (OpenMP): libomp standalone formula may be missing/renamed on current images