What are the problems with mixing .NET Framework and .NET CORE? : <p>I have a load of middle and back end components (repositories, services etc) that were written against the .NET Framework 4 but that are still relevant to a new project that I'm now working on. The front end of this new project will be written in ASP .NET CORE2.2. 
What should I do - recreate all components in .NET CORE or keep the back end running against .NET Framework while the front end runs against CORE? What are the considerations in terms of e.g. performance?</p>
