在SAE平台运行，http://vouchers.applinzi.com/voucher/mobile.php/index/login这个URL出现这个错误
Fatal error: Uncaught Error: Call to undefined function Think\C() in /data1/www/htdocs/709/vouchers/1/voucher/ThinkPHP/Library/Think/Think.class.php:313
Stack trace: #0 /data1/www/htdocs/709/vouchers/1/voucher/ThinkPHP/Library/Think/Think.class.php(273): Think\Think::halt(Array) #1 [internal function]: Think\Think::fatalError() #2 {main} thrown in /data1/www/htdocs/709/vouchers/1/voucher/ThinkPHP/Library/Think/Think.class.php on line 313