APC缓存，下面的错误是什么引起的？

sdlywwb

即使是空白程序，运行后出现如下错误。
运行以后出现如下错误：
Warning:  require() [function.require]: apc failed to locate app/config/constants.php - bailing in D:\wamp\www\sys\core\CodeIgniter.php on line 64

Warning:  require() [function.require]: apc failed to locate app/config/config.php - bailing in D:\wamp\www\sys\core\Common.php on line 237

Warning:  include() [function.include]: apc failed to locate app/errors/error_php.php - bailing in D:\wamp\www\sys\core\Exceptions.php on line 182
A PHP Error was encounteredSeverity: Warning
Message:  require() [function.require]: apc failed to locate app/config/config.php - bailing
Filename: core/Common.php
Line Number: 237


Warning:  include() [function.include]: apc failed to locate app/errors/error_php.php - bailing in D:\wamp\www\sys\core\Exceptions.php on line 182
A PHP Error was encounteredSeverity: Warning
Message:  include() [function.include]: apc failed to locate app/config/routes.php - bailing
Filename: core/Router.php
Line Number: 138


Warning:  include() [function.include]: apc failed to locate app/errors/error_php.php - bailing in D:\wamp\www\sys\core\Exceptions.php on line 182
A PHP Error was encounteredSeverity: Warning
Message:  include() [function.include]: apc failed to locate app/config/mimes.php - bailing
Filename: core/Output.php
Line Number: 103


Warning:  include() [function.include]: apc failed to locate app/errors/error_php.php - bailing in D:\wamp\www\sys\core\Exceptions.php on line 182


高手指教，在线等。