登入時出現錯誤訊息

登入後出現錯誤訊息如下:
Warning: Cannot modify header information – headers already sent by (output started at C:\AppServ\www\wordpress\wp-config.php:1) in C:\AppServ\www\wordpress\wp-login.php on line 302

Warning: Cannot modify header information – headers already sent by (output started at C:\AppServ\www\wordpress\wp-config.php:1) in C:\AppServ\www\wordpress\wp-login.php on line 314

Warning: Cannot modify header information – headers already sent by (output started at C:\AppServ\www\wordpress\wp-config.php:1) in C:\AppServ\www\wordpress\wp-includes\pluggable.php on line 665

Warning: Cannot modify header information – headers already sent by (output started at C:\AppServ\www\wordpress\wp-config.php:1) in C:\AppServ\www\wordpress\wp-includes\pluggable.php on line 666

Warning: Cannot modify header information – headers already sent by (output started at C:\AppServ\www\wordpress\wp-config.php:1) in C:\AppServ\www\wordpress\wp-includes\pluggable.php on line 667

Warning: Cannot modify header information – headers already sent by (output started at C:\AppServ\www\wordpress\wp-config.php:1) in C:\AppServ\www\wordpress\wp-includes\pluggable.php on line 868

我確定帳密都打對
不知道是發生什麼事
(我是用AppServ,在自己的電腦上架設的)