stilln not working

MailAddressVisualizerTest/Program.cs

@@ -1,9 +1,7 @@
 // See https://aka.ms/new-console-template for more information
 using System.Net.Mail;
-using System.Numerics;
 
 var displayName = "Thomas Ardal";
 var email = "thomas@elmah.io";
 var mailAddress = new MailAddress(email, displayName);
-var x = new Vector3(1, 2, 3);
 return;

MailAddressVisualizerTest/Test.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>