Cannot redeclare file_uri_to_object()

Hi

Trying to (re)activate file entity gives the following error:
Fatal error: Cannot redeclare file_uri_to_object() (previously declared in C:\xampp\htdocs\*drupal*\sites\all\modules\plupload\plupload.module:391) in C:\xampp\htdocs\*drupal*\sites\all\modules\file_entity\file_entity.file_api.inc on line 491

Has anyone come across this?
Thanks