CTSCore.dll. It seems to run fine, and when I examine the DLL I see it has a reference to Microsoft.EntityFrameworkCore.8.0.2.0, yet in the bin folder of the app I see Microsoft.EntityFrameworkCore.8.0.424.16902. Yet when I reference CTSCore in my web api and call a method on one of its classes, I get a FileNotFoundException looking for Microsoft.EntityFrameworkCore.8.0.2.0.