Warning: require_once(db/db.php) [function.require-once]: failed to open stream: No such file or directory in D:\6approot\xampp\htdocs\weixin14\common\common.php on line 5

Fatal error: require_once() [function.require]: Failed opening required 'db/db.php' (include_path='.;D:\6approot\xampp\php\pear\') in D:\6approot\xampp\htdocs\weixin14\common\common.php on line 5