DtmlxGantt error TypeError: e is undefined

am trying to setup Gantt with as scale unit as hour rate for one day, as follows
gantt.config.start_date = new Date(2013, 10, 4, 7, 00);
gantt.config.end_date = new Date(2013, 10, 4, 24, 00);
gantt.config.date_grid = “%H:%i”;
gantt.config.scale_unit = “hour”;
gantt.config.duration_unit = 60601000;
gantt.config.date_scale = “%H:%i”;
gantt.config.details_on_create = true;

when load data from server side got this error TypeError: e is undefined when i comment start_date and end_date configuration setting the error is gone.
anyone help me
thank in advance

you may try the more recent version of the component from this post, issue should be fixed there

Is a way to configure the date for gantt, because my mysql date is YY-m-d H:s:i
and gantt date is d-m-YY H:s:i

You can use “xml_date” option
docs.dhtmlx.com/gantt/api__gantt … onfig.html

Thanks so much