calendar iPhone 3.x problems

Hi everybody,

I´m trying to use the example code from appcelerator documentation to see how to insert an evente on an especific calendar i have in my iphone. if i open the calendar app i see gmail calendar , default calendar, icloud calendar , etc but the example method returns tha i have no calendars.

this is the code i´m using:

function FirstView() {
    //create object instance, a parasitic subclass of Observable
    var self = Ti.UI.createView();
 
    //label using localization-ready strings from <app dir>/i18n/en/strings.xml
    var label = Ti.UI.createLabel({
        color : '#000000',
        text : 'Seleccionar fecha:',
        height : 'auto',
        width : 'auto'
    });
    self.add(label);
 
    var pickDesde = Ti.UI.createPicker({
        type : Ti.UI.PICKER_TYPE_DATE,
        minDate : new Date(2009, 0, 1),
        maxDate : new Date(2020, 11, 31),
        value : new Date(2014, 3, 12),
        top : 10,
        left : 10
    });
 
    self.add(pickDesde);
 
    var pickHasta = Ti.UI.createPicker({
        type : Ti.UI.PICKER_TYPE_DATE,
        minDate : new Date(2009, 0, 1),
        maxDate : new Date(2020, 11, 31),
        value : new Date(2014, 3, 12),
        top : 250,
        left : 10
    });
 
    self.add(pickHasta);
 
    //Add behavior for UI
 
    var butonCalendar = Ti.UI.createButton({
        backgroundColor : 'purple',
        top : 400,
        right : 10,
        width : '60%',
        height : 40
    });
 
    self.add(butonCalendar);
 
    butonCalendar.addEventListener('click', function(e) {
        //aqui va el calendario.
        Ti.API.info('ALL CALENDARS:');
        showCalendars(Ti.Calendar.allCalendars);
 
 
 
    });
 
    function showCalendars(calendars) {
        for (var i = 0; i < calendars.length; i++) {
            Ti.API.info(calendars[i].name);
            alert(calendars[i].name);
        }
 
    }
 
 
 
    return self;
}
 
module.exports = FirstView;