首先确定 dede data文件夹已经有写入权限 775 777都可以
然后再远程桌面或者FTP修改 include/userlogin.class.php 文件
注释掉下面六句 (php 5.4没有session_register方法)
@session_register($this->keepUserIDTag);
@session_register($this->keepUserTypeTag);
@session_register($this->keepUserChannelTag);
@session_register($this->keepUserNameTag);
@session_register($this->keepUserPurviewTag);
@session_register($this->keepAdminStyleTag);
如图