Wrong use of IContainer

PatternDemo2/PatternDemoCore2.csproj

@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Autofac" Version="6.0.0" />
+  </ItemGroup>
+
+</Project>

PatternDemo2/Program.cs

@@ -0,0 +1,46 @@
+using Autofac;
+using System;
+
+namespace PatternDemoCore
+{
+
+    public class Entity
+    {
+        private static Random random = new Random();
+        private int number;
+
+        public Entity()
+        {
+            number = random.Next();
+        }
+
+        public override string ToString()
+        {
+            return $"test {number}";
+        }
+    }
+
+    public class ViewModel
+    {
+        private readonly IContainer container;
+
+        public ViewModel(IContainer container)
+        {
+            this.container = container;
+        }
+
+        public void Method()
+        {
+            var entity = container.Resolve<Entity>();
+        }
+    }
+
+
+    public class  Demo
+    {
+        static void Main(string[] args)
+        {
+            Console.WriteLine("Hello World!");
+        }
+    }
+}