Warning: require_once(/var/www/application/config/constants.php): failed to open stream: No such file or directory in /opt/ci/core/CodeIgniter.php on line 70

Fatal error: require_once(): Failed opening required '/var/www/application/config/constants.php' (include_path='.:/usr/share/php:/usr/share/pear') in /opt/ci/core/CodeIgniter.php on line 70