How to use .net framework from .net core?

Question

I have a .net core xUnit project that references a .net framework project that references Microsoft's Azure Notification Hub API.

It builds, but when try and create a hub, I get the error...

Could not load file or assembly 'System.Configuration.ConfigurationManager, Version=0.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51

Which seems like an odd error to get given that System.Configuration is referenced.

How do I make the Azure referencing project act like a framework 4.7 project?

Can you set it to copy local and then do an assembly bind to that version and see if it works? I have no idea why it's not working btw but I'd try this if I were you and see how it goes. — kha, Nov 03 '17 at 15:06
Version 0 is not a very happy number, hard to imagine what kind of sledgehammer was involved. In general, the .NETCore runtime cannot load a .NET Framework assembly, you'd have to rebuild the assembly by targeting .NETStandard. That is not necessarily simple, they did release a core replacement for System.Configuration recently. As always, the best advice is to wait until they are done. The proverbial version 3, perhaps. — Hans Passant, Nov 03 '17 at 15:40
What universe am I living in? Are these machines supposed to be putting everyone out of a job in the next couple of decades? — Ian Warburton, Nov 03 '17 at 15:59
Related post - [How do I reference a .NET Framework project in a .NET Core project?](https://stackoverflow.com/q/38148128/465053) — RBT, Sep 28 '21 at 09:40

score 4 · Answer 1 · answered Dec 06 '17 at 12:11

4

If you are targeting .NET Core, make sure you've referenced NuGet package System.Configuration.ConfigurationManager.

answered Dec 06 '17 at 12:11

Alex Sanséau

score 2 · Accepted Answer · answered Dec 06 '17 at 14:12

Microsoft just shipped a new version that's compatible to .NET Standard 2.0,

Please upgrade your SDK to use that. Of course, you need to make other changes according to their documentation.

2 Answers2