MenubarItem() Argument Exceptions

I am trying to create a menubar with two menu items(without the sub menus) by modifying the demo app.

At first, I tried

		var menu = new MenuBar ( new MenuBarItem [] {
			new MenuBarItem ("_Quit", "Quit the application", () => { if (Quit ()) top.Running = false; }),
			new MenuBarItem ("_Settings", "",() => Settings ())
		});

when I build, I receive error CS1729: ‘MenuBarItem’ does not contain a constructor that takes 3 arguments

Then I tried,

		var menu = new MenuBar ( new MenuBarItem [] {
			new MenuBarItem ("_Quit", "Quit the application", () => { if (Quit ()) top.Running = false; }, null),
			new MenuBarItem ("_Settings", "",() => Settings (), null)
		});

when I build, I receive error CS1729: ‘MenuBarItem’ does not contain a constructor that takes 4 arguments.

Not sure what I am doing wrong, I need help

[jowlsaw]

thank you, I will try building the Master, otherwise I will just wait for new version.

[BDisp]

I think the nuget package does not have these updates yet.