想把一个服务器上的wp转移到另一个服务器，按正规的步骤走了，备份文件、数据库，上传文件、导入数据库，可总错误，好像是因为把mysql4的数据导入到mysql 5中的问题，请问有人知道该怎么解决吗？ 提示错误有： 首页: Warning: Invalid argument supplied for foreach() in *****/wp-includes/capabilities.php on line 19 后台：Warning: Invalid argument supplied for foreach() in ****/wp-includes/capabilities.php on line 19 Warning: Cannot modify header information - headers already sent by (output started at ****wp-includes/capabilities.php:19) in ****wp-login.php on line 9 Warning: Cannot modify header information - headers already sent by (output started at ****wp-includes/capabilities.php:19) in ****wp-includes/pluggable-functions.php on line 269