Error CS0023: Operator '.' cannot be applied to operand of type 'void'

[gcacciapaglia]

I've cloned the Nuke Build source code, but when I try to compile it (using the build.ps1 command on Windows), I get the following two errors:

Nuke.Utilities net8.0 failed with 2 error(s) (2.8s)
[PathToTheSolution]\NukeBuild\source\Nuke.Utilities\Text\String.Join.cs(130,35): error CS0023: Operator '.' cannot be applied to operand of type 'void'
[PathToTheSolution]\NukeBuild\source\Nuke.Utilities\Text\String.Join.cs(142,35): error CS0023: Operator '.' cannot be applied to operand of type 'void'

The error happens in correspondence of this line of code which is from the original code base of Nuke in github (I'm putting the first one because the second is pretty similar):

public static string JoinCommaOr(this IEnumerable<string> values) { var valuesList = values.ToArray(); return valuesList.Length >= 2 ? valuesList.Reverse().Skip(1).Reverse().JoinCommaSpace() + $"{(valuesList.Length > 2 ? "," : string.Empty)} or " + valuesList.Last() : valuesList.JoinCommaSpace(); }

Asking if someone has had the same problem.
P.S. I have installed the latest version (9.0.4) of the nuke global tool.