Monodevelop on linux (antix) wont launch my C# application

See more:

C#7.0

Recently converted to linux and for c# i started to use mono,(previously used visual studio). The problem is when i press control and f5 my program does not launch. Sometimes the screen comes up with my programs name on top but the program does not work.
This is the same for simplistic codes, even the default one.

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

no errors no warnings no nothing

What I have tried:

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