Overloading constructor at child invalidates overloaded constructors at parent in swift

Question

I have class Parent like this:

class Parent {
    init? (data: AnyObject) { }
}

I have class Child like this:

class Child : Parent {
    init? (info: AnyObject) { }
}

When I write code like this:

let obj = Child (data: someData);

I get error:

Incorrect argument label in call (have 'data:', expected 'info:')

But if I remove the constructor at child, the error disappears.

How can I have both of the constructors at child? Thanks.