Csproj.Sdk.Void 1.0.0

What's Csproj.Sdk?

Csproj.Sdk is msbuild's SDK package used for .csproj file to migrate legacy-style project to newer SDK-style format.

Note that Unity's Visual Studio Editor package changelog describes that adding support generation of SDK-style project, but unfortunately, it still generates legacy-style format with some changes such as project header updated to <Project ToolsVersion="Current">. (actually it is sdk-importing-legacy-style project)

And also, sdk-importing-style format generation is only performed when External Script Editor is set to VS Code. Unity is still generating legacy-format for Visual Studio environment.

How to Migrate .csproj to SDK-Style

Visual Studio

To migrate, use Csproj.Sdk.Void as an SDK for your .csproj.

<Project Sdk="Csproj.Sdk.Void/1.0.0">
    ...
    ... original file contents ...
    ...
</Project>

[!NOTE] Version prefix (/1.0.0) must be specified to activate internal nuget resolver.

This will allow setting nullability for whole project by adding <Nullable>enable</Nullable> to .csproj. Surprisingly, nullability setting is not recognized by Visual Studio if Project tag doesn't have Sdk attribute!!

See: <Nullable> has no effect in old-style csproj

Unity Integration

See Unity/README.md

Devnote

MSBuildSdk Package Development Reference

There are no well-describing documents about MSBuildSdk package development. See the following source code for reference instead.

MSBuild SDKs https://github.com/microsoft/MSBuildSdks/tree/main/src