commonJS error"Object function Controller()"

Hi, i'm trying to use a commonJS to resize my view's childrens. I've used this code:

resizeChildren.js

exports.resizeChildren = function () {
    Ti.API.info("resize done");
};

in the index.js, inside a function i call the function so:

require('/resizeChildren').resizeChildren();

The resizeChildren.js is in the controllers folder, and even the index.js. When i run the app, the console shows me this exception:

V8Exception: Exception occurred at alloy/controllers/index.js:1: Uncaught TypeError: Object function Controller()....

the ellipsis indicate that the error continue with the description of the next function.

Do you have any suggestion? What am i doing wrong?

Thanks in advance