Repository Issues

dotnet/roslyn

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

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Stars
 (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
CS1705 must indicate which library with the conflict
Area-CompilersConcept-Diagnostic Clarityhelp wanted

dotnet/roslyn #66,161 opened Dec 30, 2022 · C# · 20,414 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment0 reactions0 assignees
Open
Codegen of System.Nullable `is null` check is poor
4 - In ReviewArea-CompilersCode Gen QualityConcept-Design Debthelp wanted

dotnet/roslyn #65,091 opened Oct 28, 2022 · 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
Reorder Tuple Members Refactoring
Area-IDEhelp wanted

dotnet/roslyn #64,897 opened Oct 21, 2022 · 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
IDE0059 incorrectly suggests removal of used variable
Area-IDEBugFeature - IDE0059help wanted

dotnet/roslyn #64,044 opened Sep 15, 2022 · C# · 20,414 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments1 reaction0 assignees
Open
Remove or document "CompilerDiagnostic" type
Area-AnalyzersConcept-Continuous Improvementhelp wanted

dotnet/roslyn #63,938 opened Sep 12, 2022 · 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
Improve ERR_InaccessibleSymbol2 VB diagnostic
Area-CompilersConcept-Diagnostic ClarityLanguage-VBhelp wanted

dotnet/roslyn #62,790 opened Jul 20, 2022 · 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
Possibly incorrect comment in definite assignment
Area-CompilersBugConcept-Design Debthelp wanted

dotnet/roslyn #62,522 opened Jul 9, 2022 · 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