代码导致无法进行route:cache

~/ $ art route:cache
Route cache cleared!
PHP Fatal error:  Cannot redeclare setting() (previously declared in /Users/os/code/daimiyun/vendor/summerblue/administrator/src/helpers.php:3) in /Users/os/code/daimiyun/vendor/summerblue/administrator/src/helpers.php on line 14


  [Symfony\Component\Debug\Exception\FatalErrorException]
  Cannot redeclare setting() (previously declared in /Users/os/code/daimiyun/vendor/summerblue/administrator/src/helpers.php:3)




  [Symfony\Component\Debug\Exception\FatalErrorException]
  Cannot redeclare setting() (previously declared in /Users/os/code/daimiyun/vendor/summerblue/administrator/src/helpers.php:3)