session_start():open(/tmp/sess_...,O_REWR) failed

I installed opencart but couldnt access to the admin page. The error message was:

PHP Warning: session_start(): open(/tmp/sess_e04153be0ce8842855182c6f89f91012, O_RDWR) failed: No such file or directory (2)

please could anyone help?

Thanks to sudhir, this problem was resolved by adding the following code in the file /system/library/session.php

session_save_path(realpath(dirname($_SERVER['DOCUMENT_ROOT']).'/tmp'));

before

session_start();

This solution was based on sudhir » at http://forum.opencart.com/viewtopic.php?t=7106

in case someone faces the same problem,

Thank you soooo much!! This worked on my OC 2.0.1.1. Just spend like 3 hours trying to fix! Customer login, admin login, and add to cart all didn't work. This fixed it.