dhtmlxGantt TypeError: el is undefined

Gantt
#1

Am trying to change start date and end date automatically in gantt chart
as following
var date_start = new Date();
gantt.config.start_date = new Date(date_start.getFullYear(), date_start.getMonth(), date_start.getDate(), 00, 59);
gantt.config.end_date = new Date(date_start.getFullYear(), date_start.getMonth(), date_start.getDate(), 23, 59);
gantt.render();

but got the following error
TypeError: el is undefined
var left = Math.max(el.offsetLeft - this.config.task_scroll_offset, 0);

need help,
thank you in advance

#2

Hello,
this seems to be happening when gantt tries to display data from outside of the visible time span. We’ll fix the issue.
for now you may filter-out such tasks manually:gantt.attachEvent("onBeforeTaskDisplay", function(id, task){ if (task.start_date.valueOf() > gantt.config.end_date.valueOf() || task.end_date.valueOf() < gantt.config.start_date.valueOf() ){ return false; } return true; });

#3

thank you