[bug] NSwag v14.0.4 breaks on MemberNotNullAttribute, change 'Avoid generating unused _baseUrl (C# gen)'

[sommmen]

Hello,

The latest release breaks, because of the following commit:
Avoid generating unused _baseUrl (C# gen) 202f3c2

C:\Repos\lightr\src\Lightr\Lightr\obj\docsClient.cs(573,46,573,59): error CS0122: 'MemberNotNullAttribute' is inaccessible due to its protection level

https://github.com/sommmen/lightr/actions/runs/8416578516/job/23043462539?pr=5

The code is public:
https://github.com/sommmen/lightr/tree/dependabot/nuget/NSwag.ApiDescription.Client-14.0.4
Api doc can be found here:
https://github.com/sommmen/lightr/blob/dependabot/nuget/NSwag.ApiDescription.Client-14.0.4/src/Lightr/Lightr/OpenAPIs/docs.json

[sommmen]

Related so:

If your open documentation you will see that NotNullWhenAttribute applies to:

• .NET Core 3.0, Core 3.1, 5, 6, 7, 8
• .NET Standard 2.1

TBH I failed to build lib against .NET Standard 2.1 also, but you try can either install nuget like this one or implement this attribute yourself (like it is done in the runtime), cause AFAIK compiler quite often relies on naming and/or duck typing.

https://stackoverflow.com/a/61574692/4122889

My project targets netstandard2.1 so this should work but it seems to fail for some reason.

[sommmen]

this could be a dupe or regression of #4704

[Vogel612]

Duplicates #4763 in addition

[vvdb-architecture]

Same problem in 14.0.5. Our proxies target NetStandard2.0, and it fails there as well.

[RicoSuter]

v14.0.6