Warning: include(cake/bootstrap.php): failed to open stream: No such file or directory in /var/www/html/site/webroot/index.php on line 78

Warning: include(): Failed opening 'cake/bootstrap.php' for inclusion (include_path='/var/www/html:/var/www/html/site/:.:/usr/share/php:/usr/share/pear') in /var/www/html/site/webroot/index.php on line 78

Fatal error: CakePHP core could not be found. Check the value of CAKE_CORE_INCLUDE_PATH in APP/webroot/index.php. It should point to the directory containing your /cake core directory and your /vendors root directory. in /var/www/html/site/webroot/index.php on line 79