>Hi Bill,
>
>I didn't have it
>
>Now I have code that looks like this
>
>using system;
>Console.WriteLine("Veuillez saisir votre prénom.");
>string prenom = console.readline();
>console.writeline("Veuillez saisir votre age.");
>string age = console.readline();
>console.WriteLine("Bonjour " + prenom + ", vous avez " + age + " ans.");
>
>
>>>Hello all,
>>>
>>>I am beginning to learn C# with video classes.
>>>
>>>Weird thing happening. Some times (rarely) intelllisense kicks in. Then I'm allowed to add lines of code and then execute afterwards.
>>>
>>>I can't enter "Console.writeline" for example because intellisense doesn't show me the rest of what is available.
>>>
>>>So I entered the lines of code even if intellisense doesn't seem to be active thinking that the code should execute.
>>>
>>>When I try a "dotnet run" I have many errors. Of those errors there is one saying "Console" doesn't exist in the actual context.
>>>
>>>I have the Omnisharp extension installed.
>>
>>Does your code include:
>>using System;
>>?

I created a simple console application and put your code into it.
It wouldn't compile.
.NET is case sensitive.
I made some changes.
See below.
That compiled.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        public void tester()
        {
            Console.WriteLine("Veuillez saisir votre prénom.");
            string prenom = Console.ReadLine();
            Console.WriteLine("Veuillez saisir votre age.");
            string age = Console.ReadLine();
            Console.WriteLine("Bonjour " + prenom + ", vous avez " + age + " ans.");
        }
    }
}