i have 2 projects, 
The Main Project : BFN_DamageCalculator 
Second: BfnXmlLibrary ( which is both a cs library AND source generator which uses Roslyns source generator afaik )
Code:
PS C:\Users\ixlle\Documents\BFN_DamageCalculator> dotnet build
MSBuild version 17.4.1+9a89d02ff for .NET
  Wiederherzustellende Projekte werden ermittelt...
  Alle Projekte sind für die Wiederherstellung auf dem neuesten Stand.
  BfnXmlReaderLibrary -> C:\Users\ixlle\Documents\BfnXmlReaderLibrary\bin\Debug\netstandard2.0\BfnXmlReaderLibrary.dll
  BFN_DamageCalculator -> C:\Users\ixlle\Documents\BFN_DamageCalculator\bin\Debug\net6.0\BFN_DamageCalculator.dll
Der Buildvorgang wurde erfolgreich ausgeführt.
    0 Warnung(en)
    0 Fehler
Verstrichene Zeit 00:00:02.34
 thats the result when i manually build it, so it works and resovles dependencies
when ncrunch wants to build it says 
that the using directive to a class in the XmlLibrary cant be resolved "mybe im missing a using directive"... 
"using BfnXmlLibrary;" is the line that cant be resolved.. HOW would i miss a dependency here???
the second project is included this way in the csproj
Code:
 <ProjectReference Include="..\BfnXmlReaderLibrary\BfnXmlReaderLibrary.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="true"/>