CiviCRM Community Forums (archive)

I'm getting this when I try to delete a user. I'm using Drupal 5.2 and CivicRM 1.8 beta:

  Sorry. A non-recoverable error has occurred.

     Database Error Code: Cannot delete or update a parent row: a 
foreign key constraint fails, 1217

     Return to home page.

Error Details:

Array
(
     [callback] => Array
         (
             [0] => CRM_Core_Error
             [1] => handle
         )

      => -3
     [message] => DB Error: constraint violation
     [mode] => 16
     [debug_info] => DELETE FROM civicrm_contact  WHERE 
(  civicrm_contact.id = 105 )  [nativecode=1217 ** Cannot delete or 
update a parent row: a foreign key constraint fails]
     [type] => DB_Error
     [user_info] => DELETE FROM civicrm_contact  WHERE 
(  civicrm_contact.id = 105 )  [nativecode=1217 ** Cannot delete or 
update a parent row: a foreign key constraint fails]
     [to_string] => [db_error: message="DB Error: constraint 
violation" code=-3 mode=callback callback=CRM_Core_Error::handle 
prefix="" info="DELETE FROM civicrm_contact  WHERE 
(  civicrm_contact.id = 105 )  [nativecode=1217 ** Cannot delete or 
update a parent row: a foreign key constraint fails]"]
)