I want to enable IDE0058 as an error during build. Here’s how I attempted to do that.

1. Start Visual Studio 2022 (Version 17.11.2)

2. Create new project. Project type: C#, Windows, Console -> Console App “A project for creating a command-line application that can run on .NET on WIndows, Linux and macOS”

3. Next

4. Project name: CodeAnalysisError

5. Location: somewhere on my hard disk

6. [x] Place solution and project in the same directory

7. Next

8. Framework: .NET 8.0 (Long Term Support)

9. Create

10. Content of Program.cs is taken from the example of IDE0058:

    System.Convert.ToInt32("35");
    

11. Right click the project in solution explorer

12. Choose Add / New item …

13. In the filter, type “editor”

14. Choose “editorconfig File (empty)

15. Add

16. The default content of the file is

    # All files
    [*]
    indent_style = space
    
    # Xml files
    [*.xml]
    indent_size = 2
    

17. Add the line in section [*]

    dotnet_diagnostic.IDE0058.severity = error
    

18. Build the project. It succeeds

    Build started at 09:33...
    1>------ Build started: Project: CodeAnalysisError, Configuration: Debug Any CPU ------
    1>CodeAnalysisError -> C: [redacted]CodeAnalysisErrorbinDebugnet8.0CodeAnalysisError.dll
    ========== Build: 1 succeeded, 0 failed, 0 up-to-date, 0 skipped ==========
    ========== Build completed at 09:33 and took 10,612 seconds ==========
    

For reference, the .csproj file looks like this:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net8.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <EditorConfigFiles Remove="C:[redacted]CodeAnalysisError.editorconfig" />
  </ItemGroup>

  <ItemGroup>
    <None Include="C:[redacted]CodeAnalysisError.editorconfig" />
  </ItemGroup>

</Project>

The IDE displays the wiggly lines right from the start:

I have tried:

• adding <EnableNETAnalyzers>true</EnableNETAnalyzers>, but that should not be necessary, since enable code analysis

  is enabled by default for projects that target .NET 5 and later versions.

• moving the rule to [*.cs] (which again, I think should not matter):

  [*.cs]
  dotnet_diagnostic.IDE0058.severity = error
  

• Adding <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>, as mentioned here

• Adding <AnalysisMode>All</AnalysisMode> as mentioned here just because I wanted to see if I could let the build fail in any way. This starts finding the warning CA1305, but not IDE0058.

• Adding <CodeAnalysisTreatWarningsAsErrors>true</CodeAnalysisTreatWarningsAsErrors> lets the build fail, due to CA1305. I removed that for a moment.

• Setting <AnalysisLevel>preview-recommended</AnalysisLevel> as mentioned here found another warning:

  1>CSC : warning EnableGenerateDocumentationFile: Set MSBuild property 'GenerateDocumentationFile' to 'true' in project file to enable IDE0005 (Remove unnecessary usings/imports) on build (https://github.com/dotnet/roslyn/issues/41640)
  

• I read about .globalconfig here but figured that I should not need this.

• I read about .editorconfig here to make sure I didn’t miss something.

• I made sure that “[x] Follow project coding conventions” is turned as as mentioned here

• I tried using a .ruleset file, but VS tells me that they are deprecated in favor of .editorconfig.

• Upgrading Visual Studio from 17.10.x to 17.11.2

In summary, I have done everything which is also mentioned in other questions

• my files look like this accepted solution
• considering this answer, removing the two `s did not help.

So, how do I get a build error for IDE0058? If you answer, please describe the steps in detail, so I can follow. I spent more than 2.5 hours already. My code, my solution and everything is minimal.