xml for a project

Hi i’m using xml to load data for gantt, i have the following xml, but the project line doesn’t render as a green project line. Is type=“project” correct?
Many thanks!

WBS Primo Step WBS Secondo group WBS Secondo Step parte A, (Mirahili, Akram) WBS Secondo Step parte B, (Derossi, Alberto) WBS Terzo Step, (Neri, Alberto) WBS Quarto ultimo step

what version of the gantt do you use? Note that starting from gantt 3.0 the projects/milestones functionality is available only in PRO editions of the component - commercial/enterprise versions, you can also get a fully functional evaluation version. The free gpl version does not have such functionality and ‘type’ property will be ignored there