Worked on the dotnet/sdk repository to address a bug affecting error message clarity in the watch tooling. Focused on backend development using C#, the work involved correcting the string formatting for the ScopedCssBundleFileNotFound error, ensuring that variable substitution was handled properly and that user-facing output became more understandable. This change improved the readability of error messages related to missing Scoped CSS bundle files, reducing confusion for developers and streamlining support efforts. The fix was integrated with the watch IReporter flow to maintain consistency in error reporting across development workflows, contributing to a more maintainable and user-friendly codebase.