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dotnet/roslyn

The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

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 (20,414 stars)
Forks
 (4,257 forks)
Indexed issues
 (636 indexed issues)
open beginner issues
 (629 open beginner issues)
Latest indexed
Jul 17, 2026
Last GitHub push
May 15, 2026
License
MIT License
Contributing guide
Contributing guide
Code of conduct
Code of conduct
Dominant language
C#
PR merge metrics
 (Avg merge 6d 17h) (256 merged PRs in 30d)
Beginner labels
help wanted

Issues

632 open indexed issues

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Open
C# string interpolation has poor error recovery
Area-CompilersBugConcept-Diagnostic ClarityLanguage-C#help wanted

dotnet/roslyn #3,771 opened Jul 1, 2015 · C# · 20,414 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments0 reactions0 assignees
Open
Reported conversion type
Area-CompilersConcept-APIInvestigation RequiredQuestionhelp wanted

dotnet/roslyn #1,832 opened Apr 7, 2015 · C# · 20,414 stars

Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
EE: Cannot reference duplicate typename with no alias
Area-InteractiveBugInteractive-Debugginghelp wanted

dotnet/roslyn #1,530 opened Mar 24, 2015 · C# · 20,414 stars

Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
EE: Nullable values always have the "internal" icon
Area-InteractiveBugInteractive-Debugginghelp wanted

dotnet/roslyn #1,454 opened Mar 20, 2015 · C# · 20,414 stars

Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees