Error cs0017 console doesn’t exist for readline and writeline, why I don’t know...

Question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
int age =
Convert.ToInt32(Consoleu.readline());
Console.writeline("your age is {0} years old",age);
}
}
}

Answer 1

Console.WriteLine
c# is case-sensitive.
Console -> C is capitalized
WriteLine -> W and L are capitalized
Consoleu.readline()); must be Console.ReadLine()