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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
 (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
VS crashes on some methods when colling the intellicense.
Area-CompilersBugDeveloper CommunityTenet-Reliabilityhelp wanted

dotnet/roslyn #23,516 opened Dec 1, 2017 · C# · 20,414 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
11 comments0 reactions0 assignees
Open
How to handle warnings CS1701 and CS1702
Area-CompilersQuestionhelp wanted

dotnet/roslyn #23,488 opened Nov 30, 2017 · 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
Better handling object initializer syntax error
Area-CompilersFeature Requesthelp wanted

dotnet/roslyn #22,790 opened Oct 20, 2017 · C# · 20,414 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
9 comments0 reactions0 assignees
Open
ref local gives bad error when inited with ternary initializer
Area-CompilersConcept-Diagnostic ClarityFeature - Readonly ReferencesLanguage-C#Testhelp wanted

dotnet/roslyn #22,048 opened Sep 11, 2017 · C# · 20,414 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
5 comments0 reactions0 assignees
Open
Extract method over-indents second line of expression
Area-IDEBugFeature - Extract MethodIDE-Formatterhelp wanted

dotnet/roslyn #21,453 opened Aug 11, 2017 · 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
Error message on `!Main` should be refined
Area-CompilersBugConcept-Diagnostic Clarityhelp wanted

dotnet/roslyn #19,948 opened Jun 1, 2017 · 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