I tried upgrading and I'm getting the following error. Can anyone point me in the right direction?

Warning: require(/home/tmgdesig/public_html/school_new/concrete/config/version.php) [function.require]: failed to open stream: No such file or directory in /home/tmgdesig/public_html/school_new/concrete/config/base.php on line 463

Fatal error: require() [function.require]: Failed opening required '/home/tmgdesig/public_html/school_new/concrete/config/version.php' (include_path='/home/tmgdesig/public_html/school_new/libraries/3rdparty:/home/tmgdesig/public_html/school_new/concrete/config/../libraries/3rdparty:.:/usr/lib/php:/usr/local/lib/php') in /home/tmgdesig/public_html/school_new/concrete/config/base.php on line 463