问题 JOOMLA 2.5.2 出现: session_start() [function.session-start]

各位大侠：
在安装 J2.5.2 时 出现 ：

Warning: session_start() [function.session-start]: open(w:/tmp/sess_1716e24993f671358b8f6d3611347560, O_RDWR) failed: No such file or directory (2) in /home/soaksun0/public_html/rufocus/libraries/joomla/session/session.php on line 492

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/soaksun0/public_html/rufocus/libraries/joomla/session/session.php:492) in /home/soaksun0/public_html/rufocus/libraries/joomla/session/session.php on line 492

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/soaksun0/public_html/rufocus/libraries/joomla/session/session.php:492) in /home/soaksun0/public_html/rufocus/libraries/joomla/session/session.php on line 492

请问 原因？？

错误提示
Warning: open(F:/689phpsessiondatasess_66a39376b873f4daecf239891edc98b5, O_RDWR) failed
分析及解决方法
出现这样的错误语句一般是因为你的php.ini中关于session.save_path一项没有设置好，解决的方法是将session.save_path和session.cookie_path 设置置为
session_save_path = c: emp
session.cookie_path = c: emp
然后在c:目录下建立一个temp目录，即可。

谢谢 ，问题解决
或者写 。。=/tmp ; 也可以