無法載入控制器:A

FILE: /var/tp/Library/Think/App.class.php 　LINE: 99

#0 /var/tp/Library/Think/App.class.php(99): E('???????????????...')
#1 /var/tp/Library/Think/App.class.php(203): Think\App::exec()
#2 /var/tp/Library/Think/Think.class.php(121): Think\App::run()
#3 /var/tp/ThinkPHP.php(97): Think\Think::start()
#4 /var/www/index.php(30): require('/var/tp/ThinkPH...')
#5 {main}