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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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Stars
 (20,414 stars)
Forks
 (4,257 forks)
Indexed issues
 (638 indexed issues)
open beginner issues
 (633 open beginner issues)
Latest indexed
Aug 14, 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

638 indexed issues

Open
/errorlogger add analyzer name in rule properties
Area-AnalyzersFeature Requesthelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / roslyn · #13521 · Sep 1, 2016 · C# · 20,414 stars

1 comment0 reactions0 assignees
Open
Incorrect indentation in LambdaRewriter
Area-CompilersBughelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / roslyn · #12709 · Jul 24, 2016 · C# · 20,414 stars

4 comments0 reactions0 assignees
Open
Cannot get type of implicitly typed array in VB.NET
Area-CompilersBugConcept-APILanguage-VBhelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / roslyn · #11933 · Jun 11, 2016 · C# · 20,414 stars

5 comments0 reactions0 assignees
Open
Wrong error message for Task.Run with invalid argument
Area-CompilersConcept-Diagnostic ClarityInvestigatinghelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

dotnet / roslyn · #10672 · Apr 19, 2016 · C# · 20,414 stars

1 comment0 reactions0 assignees