Warning: require_once(/moodle_old2017/lib/setup.php): failed to open stream: No such file or directory in /moodle_old2017/config.php on line 26

Fatal error: require_once(): Failed opening required '/moodle_old2017/lib/setup.php' (include_path='.:/:/usr/local/php56/lib/pear') in /moodle_old2017/config.php on line 26