Hi Rm0076,
Sorry for delay in reply.
For your requirement, I’m afraid that the answer might be negative. Like the error message .net core app 3.0 cannot be referenced by projects targets .net framework 4.8.
If you want to share code between .NET Core and .NET Framework apps/libraries, you could make the shared project target .NET Standard. If you create a .NET Standard 2.1 project, I think it could be used in .NET Core 3.0 and .NET Framework 4.6.1+
projects. Please refer more from
.NET implementation support.
Sorry for this inconvenience.
Best Regards,
Tianyu
MSDN Community Support
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