I cannot get the supplied gantt chart to work in Apex 4.2
select null link, NAME task_name, ID task_id, null parent_id, START_DATE actual_start, END_DATE actual_end, PROGRESS progress, null planned_start, null planned_end
from "ACN240"."PROJ_STAGES"
I get an error message

Does anybody know a good plugin chart for version 4.2
Gus