Gantt Chart for Resource Allocation


I am new to easyBI and trying to create a Gantt chart in EasyBI by uploading a flat file that includes the following fields.

Resource Name
Project Role
Primary Role
Project Start Date
Project End Date
Role Start Date
Role End Date

How do I import these fields to enable a chart like this to be created?

The attached image is where I would like to get. Thanks in advance for any help.

Kind regards,