Relationships: Exception on `AddRelationship`

[hxYuki]

Arch@2.1.0
Arch.Relationships@1.0.1

using Arch.Core;
using Arch.Relationships;

var world = World.Create();

var a = world.Create();

var b = world.Create();

a.AddRelationship<ParentOf>(b); // Uncaught exception: System.TypeLoadException: “Could not load type 'Arch.Core.Utils.Component`1' from assembly 'Arch, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null'.”


public struct ParentOf;

[hxYuki]

Package built from source works. Please update packages on nuget.