The type 'MarshalByRefObject' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0

Question

I'm trying to make a C# Console Application using .NetCore on "Visual Studio 2017" for the sake of running it on CentOS 7 , what seems to be the issue is that apparently the .NetCore doesn't have some of the Classes that's inside the .Net Framework, or that's what I think the problem is. So I've tried adding a reference to assembly mscorlib but that just made the errors even more..

Error CS0433 The type 'StringBuilder' exists in both 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' and 'System.Runtime, Version=4.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'

Any idea how can I solve this issue? Thanks.

.NetCore Console Application using Visual Studio 2017

Answer 1

MarshalByRefObject is not part of .NetCore so you should not use it.

Scroll to comments and you will find info and link about replacement. https://blogs.msdn.microsoft.com/dotnet/2016/05/27/making-it-easier-to-port-to-net-core/