Symptoms
CodeIgniter website does not work correctly.
Requesting non existent php file like http://example.com/does-not-exist.php results in an entry in /var/www/vhosts/example.com/logs/error_log...
我的版本是15.04,系统推送让升级到16.04。早想升级到16了正好今天不忙升级一下吧。还没开始就出错然后百度An upgrade from 'vivid' to 'xenial' is not supported with this tool.相关内容,什么都没找到;又去google这才找到解决办法,先升级到到15.10然后再升级到16.04链接地址:http://askubuntu.c...