Error with gantt.groupBy Method


After enabling the auto_scheduling_project_constraint configuration, using the groupBy function results in an error.

Example URL: DHTMLX Snippet Tool


We are aware of this issue. The dev team will fix it in the future, but I cannot give you any ETA.
As a workaround, you can disable the auto_scheduling_project_constraint config before grouping tasks and enable it after ungrouping tasks.

Please check the example: