In Project Management, if you import a project created in v2 into v3 and try to view the gantt chart it does not display properly. The following message appears in the system log:

ProjectGanttSchedulePage::_returnItemsFromptm null projectTasks

Also, the project tasks with sub-tasks may not roll up correctly.

1. Open Project Management.
2. Import a project plan from v2 into v3.
3. Click on the Gantt Chart UI action.

The attached script file named update_migrate_projects.js can be used to migrate the v2 projects to v3 individually.

The sys_id needs to be replaced with the desired project sys_id at line 7:

roots.addQuery("sys_id",  "SYS_ID");

In case the source [pm_project] table contains only projects to be migrated, the sys_id condition can be removed completely.