Use .net core DLL in Framework 4.6 project

Question

I have built a DLL in .net core 2.0 and I now want to use it in a WinForms-project using the .net 4.6.1-framework.

I can reference the dll but I get a "System.IO.FileLoadException" which says that "System.Runtime, Version 4.2.0.0" could not be found.

What's the standard way to integrate a .net core 2.0-DLL in a full-framework-project?

Roman · Accepted Answer · 2017-09-08 09:48:17Z

6

According to MSDN you should reference .Net Standard and to reference .Net Standard 2.0 library you should have a project on .Net Framework 4.6.1 or higher and installed .Net Core 2.0 SDK.

You should change target framework to 4.6.1 of your WinForms project and install .Net Core SDK.

edited Sep 8, 2017 at 9:48

answered Sep 8, 2017 at 6:12

Roman

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6 Comments

user2033412 Over a year ago

I actually didn't know there was a difference between 4.6.1 and 4.6. I currently use 4.6.

Roman Over a year ago

@user2033412, If you change framework to 4.6.1 does it work?

Roman Over a year ago

@user2033412, try to reinstall System.Runtime NuGet package

Roman Over a year ago

@user2033412, try to unload your .Net Core project and open project file in XML editor, then find <TargetFrameworkVersion>. Which value do you have?

user2033412 Over a year ago

Ok, i think i got it. I changed the TragetFrameWorkVersion from dotnetcore2.0 to dotnetstandard2.0 -- now it works. :-)

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