[Roslyn] Tutorial misses information about netCore3.0 (unsupported!) is required to be installed to use the Roslyn .NET Standard Template and succeed with the tutorial

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Issue 类型
文档
描述清晰度
基本清楚
活跃度
停滞
技术栈
csharp
领域
compilers, documentation

调研方向

从 docs/csharp/roslyn-sdk/tutorials/how-to-write-csharp-analyzer-code-fix.md 开始，将其中关于项目和目标框架的说明与当前的 Roslyn SDK 模板和 Visual Studio Installer 组件进行比较。记录所需的组件，并为项目目标 netstandard2.0、netcoreapp3.1 和 net472 添加故障排除或迁移指南。验证该教程反映了当前的模板体验。

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描述

dotnet-csharp/svc roslyn-sdk/subsvc
Type of issue

Missing information

Description

I attempted to create my first Roslyn Generator/Analyzer Project from scratch in VS2026 v18.0.2 using the linked tutorial guide, but just like the user here:

(which should be fixed from the issue state !!! )

and latest updates and workloads provided from the Visual Studio Installer, I run into the same problems:

  • We can not select to get a "real" .NET Standard Project, only be able to choose between different .NET Framework Versions but we not can "opt-out" of using NET Framework.
  • Analyzer (main project), Analyzer.Codefixes, Analyzer.Package Projects are using the to be expected <TargetFramework>netstandard2.0</TargetFramework> in .csproj that doesn't applies on the two other provided Projects!
  • Analyzer.Test is provided with the expected to be fixed and by that not included <TargetFramework>netcoreapp3.1</TargetFramework>
  • Analyzer.Vsix is provided with the previously required to be selected <TargetFramework>net472</TargetFramework>

There is exactly NO Information about both (Framework / .NET Core) installation Components would be required for this tutorial or using the Roslyn SDK Templates, I would ask you to add those critical information into this Documentation and, if you have some, also to suggest to us, how to workaround this or similar. But saying nothing and just awaiting the user to get a bad User Expirience is the worst approach I can think of 👀
and I am sure, that's not your intention 👍

This is the current User Expirience you are providing to us without any changes:

https://github.com/user-attachments/assets/55ed18de-a600-4d63-82dd-4dfa351d89c2

Since the linked sample is not using these issued TFM's, I think someone is aware of this update requirement in your Team and maybe even if you are not the ones relyable for the Tempaltes provided, you could possibly add a kind of migration/Troubleshooting section for this?
Thanks in advance!

Additional Information & Feedback

I did hear already from the requirement to be using netstandard2.0 even if I am not very happy about it, because we are now for regular apps at .NET 10, that would be okay and expected.
Even Visual Studio Installer itself is stating .NET Core 3.1-Runtime as not longer supported so the priority of anyone who is maybe relyable in shipping VS Templates should maybe re-evaluated 😄 :

Image
Page URL

https://learn.microsoft.com/en-us/dotnet/csharp/roslyn-sdk/tutorials/how-to-write-csharp-analyzer-code-fix

Content source URL

https://github.com/dotnet/docs/blob/main/docs/csharp/roslyn-sdk/tutorials/how-to-write-csharp-analyzer-code-fix.md

Document Version Independent Id

a286e20b-1e43-dc57-e0fb-5a9dee7ec3f6

Platform Id

66b66ae2-c045-6e7a-3fc2-550b1ac424ee

Article author

@BillWagner

Metadata
  • ID: 6e3fc905-7aa1-7f5e-9bfe-fbcef461ad5e
  • PlatformId: 66b66ae2-c045-6e7a-3fc2-550b1ac424ee
  • Service: dotnet-csharp
  • Sub-service: roslyn-sdk

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