Cannot read properties of undefined (reading 'row_height')


I have licensed version of dhtmlx-Gantt 7.1 version.

While loading the gantt chart I am getting below two errors.

  1. Invalid start_date argument for calculateEnd method.
  2. Cannot read properties of undefined (reading ‘row_height’)

If I downgraded version dhtmlx-Gantt 7.0.9 then it is working fine.

Somehow I have fixed the first issue but still getting the second issue 7.1 version

Hello Ghanesham,
Probably, the issue is related to the Gantt configuration, but it is hard to suggest what might be wrong as I don’t see your code.
Please, add your configuration to the following snippet and make sure that the issue is reproduced there:
Then, click on the Share button and send me the link.
Or send me a ready demo with all the necessary Javascript and CSS files so that I can reproduce the issue locally.