clean install smf and tp install problem

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Warning: Unknown(): A session is active. You cannot change the session module's ini settings at this time. in Unknown on line 0

I got this error when i try to install tp through package manager on a clean install smf on localhost.
i persume that problem is server's configuration but i don't know where exactly...

http://www.tinyportal.net/index.php?topic=17469.msg149402#msg149402

edit- i install it now, what was problem , i don't know.