"Unable to start debuggin"

I'm trying to learn C# and .NET following this guy's tutorial.

So I download Visual Studio and create a new project (Console Application). I add ahallo world line in main

Console.WriteLine("Hello from C#!");

Ctrl-F5 won't function like suggested so I click on Start. And then I get:

The debugger cannot continue running the process. Unable to start debuggin.

I'm searching the net for solutions but can't seem to find something helpful.

I have previous experience with Java but I'm a total beginer here. I'm sure I'm missing the obvious.

I'd apreciate it if someone could help me out.

Thanks :)