How can you use .NET framework class libraries in a .NET Core application?

• Class libraries which are built against .NET framework can be referenced and used inside a .NET Core application starting from .NET Core 2.x by means of a Compatibility Shim that was included in the .NET Core 2.x
• .NET Framework and .NET Core are based on different BCL (base class libraries). The code can be reused, but if the class libraries make use of any .NET Framework BCL specific references (such as Object types - which are different in .NET Core), the application might throw runtime exceptions.

ASP.NET Core Posted Feb 22, 2021