remove previously declared method

 ** [out :: ic.adfab.fr] 
 ** [out :: ic.adfab.fr] Fatal error: Can't inherit abstract function PlaygroundUser\Entity\UserInterface::getId() (previously declared abstract in ZfcUser\Entity\UserInterface) in /home/ovh/www/citroen-t1/releases/20140114151132/vendor/playground/user/src/PlaygroundUser/Entity/User.php on line 22
*** [err :: ic.adfab.fr] PHP Fatal error:  Can't inherit abstract function PlaygroundUser\Entity\UserInterface::getId() (previously declared abstract in ZfcUser\Entity\UserInterface) in /home/ovh/www/citroen-t1/releases/20140114151132/vendor/playground/user/src/PlaygroundUser/Entity/User.php on line 22
    command finished in 149ms
*** [deploy:update_code] rolling back
  * executing "rm -rf /home/ovh/www/citroen-t1/releases/20140114151132; true"
    servers: ["ic.adfab.fr"]
    [ic.adfab.fr] executing command
    command finished in 119ms
failed: "sh -c 'php5 /home/ovh/www/citroen-t1/releases/20140114151132/vendor/doctrine/doctrine-module/bin/doctrine-module.php orm:schema-tool:update --force'" on ic.adfab.fr