After upgrading to 4.7.31 (On wordpress) - I have the following issue pop up - on pages, such as events that have CiviVolunteer fields.
Warning: Declaration of CRM_Volunteer_BAO_Project::copyValues(&$params) should be compatible with CRM_Core_DAO::copyValues(&$params, $serializeArrays = false) in /home5/site/public_html/wp-content/uploads/civicrm/ext/org.civicrm.volunteer/CRM/Volunteer/BAO/Project.php on line 36
Line 36 has the following code:
class CRM_Volunteer_BAO_Project extends CRM_Volunteer_DAO_Project {
not sure what is wrong here. CiviVolunteer 4.7.21-2.2.3