new to c#

using System;

namespace project_acsv
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
            console.ReadKey();
        }
    }
}

using System;

namespace project_acsv
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
            console.ReadKey();
        }
    }
}

/Users/myusername/Desktop/project acsv/Program.cs(10,13): error CS0103: The name 'console' does not exist in the current context [/Users/myusername/Desktop/project acsv/project acsv.csproj]

The build failed. Fix the build errors and run again.

/Users/myusername/Desktop/project acsv/Program.cs(10,13): error CS0103: The name 'console' does not exist in the current context [/Users/myusername/Desktop/project acsv/project acsv.csproj]

The build failed. Fix the build errors and run again.