DocFx is failing with VS2022 17.3.0 Preview 4.0

[tig]

Operating System: Windows

DocFX Version Used: 2.59.3.0

Template used:

https://github.com/migueldeicaza/gui.cs/blob/ec0822401aec9971ebc72fb1bf982cdeceee17ce/docfx/docfx.json

Steps to Reproduce:

1. Clone https://github.com/migueldeicaza/gui.cs
2. cd docfx and run build.ps1

Expected Behavior:

Docs build as they did with older VS 2022 17 versions.

Actual Behavior:

[22-07-21 03:50:09.530]Info:Config file docfx.json found, start generating metadata...
[22-07-21 03:50:09.724]Info:[MetadataCommand.ExtractMetadata]Using msbuild C:\Program Files\Microsoft Visual Studio\2022\Preview\MSBuild\Current\Bin as inner compiler.
[22-07-21 03:50:10.281]Info:[MetadataCommand.ExtractMetadata]Loading projects...
[22-07-21 03:50:14.000]Warning:[MetadataCommand.ExtractMetadata](C:/Users/charlie/s/gui.cs/Terminal.Gui/Terminal.Gui.csproj)Workspace failed with: [Failure] Msbuild failed when processing the file 'C:\Users\charlie\s\gui.cs\Terminal.Gui\Terminal.Gui.csproj' with message: Method not found: 'System.ReadOnlySpan`1<Char> Microsoft.IO.Path.GetFileName(System.ReadOnlySpan`1<Char>)'.
[22-07-21 03:50:15.025]Warning:[MetadataCommand.ExtractMetadata]Project 'C:\Users\charlie\s\gui.cs\Terminal.Gui\Terminal.Gui.csproj' does not contain any documents.

Tracking Terminal.Gui issue: gui-cs/Terminal.Gui#1874

[paulushub]

Reported earlier - #8097
The work around is to use the compiled dll as the source of the metadata.

[tig]

Gracias.