安装的时候，提示
Incompatible file format: The encoded file has format major ID 5, whereas the Loader expects 7
错误位置
FILE: ***/web/app/Lib/Duoaolib/BackendAction.class.php LINE: 0
问：出现Fatal error: Incompatible file format: The encoded file has format major ID 65540
答：空间的Zend版本太低，更换空间或联系空间商升级到“Zend Guard Loader 6.0.0 (Runtime for PHP 5.4)版本”
问：出现Zend Optimizer Compatibility: Zend Guard Loader 6.0.0 and above [Duoao.cn]
答：空间不支持Zend，更换空间或联系空间商增加“Zend Guard Loader 6.0.0 (Runtime for PHP 5.4)”支持
QQ好友和群
QQ空间
