project.module CVS drupal_set_html_head no defined

drupal : 4.3.2

modules : htmlarea, project (CVS version)

Fatal error: Call to undefined function: drupal_set_html_head() in /home/provit/public_html/staff/modules/project/project.module on line 142

module is installed per instruction in modules/project

I could not find this error in the forums.