WBS element is already budgeted and cannot be deleted Message no. CJ057

Hi,

WBS element is already budgeted and cannot be deleted

Message no. CJ057

i have created a Project and Budgeted the same.

now i want to delete the same Project.

i have removed the budget and made it to zero. availability control is not updated.

no orders made against the project.

how do i delete the project?

pls help.