Properties\GlobalSuppressions.cs not recognized; new "GlobalSuppressions.cs" file is generated in the project root

[siegfriedpammer]

Version Used:

Microsoft Visual Studio Professional 2022 (2) (64-bit) - Current
Version 17.12.3

Coming from https://developercommunity.visualstudio.com/content/problem/937290/new-globalsuppressionscs-file-is-generated-when-th.html and #42201 (which was closed and locked due to missing feedback), and #37530, which seems to be fixed. I just now experienced this... @CyrusNajmabadi what kind of feedback do you need?

The existing file is included explicitly in the project via:

    <Compile Include="Properties\GlobalSuppressions.cs" />

Its content is:

// This file is used by Code Analysis to maintain SuppressMessage
// attributes that are applied to this project. Project-level
// suppressions either have no target or are given a specific target
// and scoped to a namespace, type, member, etc.
//
// To add a suppression to this file, right-click the message in the
// Error List, point to "Suppress Message(s)", and click "In Project
// Suppression File". You do not need to add suppressions to this
// file manually.

[assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1017:MarkAssembliesWithComVisible")]
[assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1063:ImplementIDisposableCorrectly")]

this I tried:

• changing the file header comment to match the one in the newly generated file; didn't help
• inserting a using System.Diagnostics.CodeAnalysis; at the start, just like the newly generated file would contain; didn't help either...

[siegfriedpammer]

Note: the project I am working with is super old legacy code, which previously used FxCop and the suppression file seems to be from that era.