check-bin-obj-clash

Detecting OutputPath and IntermediateOutputPath Clashes Overview This skill helps identify when multiple MSBuild project evaluations share the same OutputPath or IntermediateOutputPath . This is a common source of build failures including: File access conflicts during parallel builds Missing or overwritten output files Intermittent build failures "File in use" errors NuGet restore errors like Cannot create a file when that file already exists - this strongly indicates multiple projects share the same IntermediateOutputPath where project.assets.json is written Clashes can occur between: Different projects sharing the same output directory Multi-targeting builds (e.g., TargetFrameworks=net8.0;net9.0 ) where the path doesn't include the target framework Multiple solution builds where the same project is built from different solutions in a single build Note: Project instances with BuildProjectReferences=false should be ignored when analyzing clashes - these are P2P reference resolution builds that only query metadata (via GetTargetPath ) and do not actually write to output directories. Show more Installs 901 Repository dotnet/skills GitHub Stars 5.1K First Seen Mar 10, 2026 Security Audits Gen Agent Trust Hub Pass Socket Pass Snyk Pass