tooltip not working

i have added extension tooltip file. even though tooltip is not working. help me to fix it

Could you clarify please, what component are you using?

Creating Online Event Calendar with Node.js and dhtmlxScheduler


Have you seen the sample? … oltip.html

The Tooltip is working. Please check that you specify the correct path to the file dhtmlxscheduler_tooltip.js.
If the problem still occurs, it will be nice if you could provide with the demo so that we can understand the cause of the problem.