changed to .NET5 , + Property injection

AutoFacSamples2/Program.cs

@@ -0,0 +1,35 @@
+using Autofac;
+using System;
+
+namespace AutoFacSamples2
+{
+    public class Parent
+    {
+        public override string ToString()
+        {
+            return "I am your father";
+        }
+    }
+
+    public class Child
+    {
+        public string Name { get; set; }
+        public Parent Parent { get; set; }
+    }
+
+
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            var builder = new ContainerBuilder();
+            builder.RegisterType<Parent>();
+
+            builder.RegisterType<Child>().PropertiesAutowired();
+
+            var container = builder.Build();
+            var parent = container.Resolve<Child>().Parent;
+            Console.WriteLine(parent);
+        }
+    }
+}