Destroy Game object wont work

I have a code `#pragma strict

function OnMouseDown() {

And when I save it I get and error that says
“Assets/Scripts/Del Object.js(5,12): BCE0023: No appropriate version of ‘UnityEngine.Object.Destroy’ for the argument list ‘(String)’ was found.”

What do I do?

StartCube needs to be an actual reference to the object you want to destroy. So if you have a variable called StartCube, just do it without the " ". Destroy(StartCube);
If you don’t have a reference, then first you need to find it somehow.