Why I have problem when I press "try it your self" it works But when i do it same But in playground it didn't Work?

Question

I learn in c# object and classes lesson 3 i try it in lesson's playground it works. But i tried in playground it didn't Work i dont understand what is wrong. I copy original and then still didn't Work.

Answer 1

Choose the code type

Answer 2

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace SoloLearn
{
class Person {
int age;
string Name;
public void SayHi(){
Console.WriteLine("Hi") ;
}
static void Main(string[] args)
{
Person p1 = new Person() ;
p1.SayHi() ;
}
}
}
Now i did like you and yeah when i write copy i mean Hand copy

Answer 3

ERROR 13 20. 16 26,27, 25
15 26,27 etc

Answer 4

Yep

Answer 5

Wait Gordon I dont understand you

Answer 6

Man is public on my profile

Answer 7

Yeah