Avertissement: require_once(Zend/Application.php): failed to open stream: No such file or directory in /var/w

mon fichier d'index est ce

<?php
ini_set( "short_open_tag", 1 );
ini_set( "display_errors", 1 );
//Define path to application directory

defined('APPLICATION_PATH')
    || define('APPLICATION_PATH', realpath(dirname(__FILE__) . '/../application'));
//Define application environment
defined('APPLICATION_ENV')
    || define('APPLICATION_ENV', (getenv('APPLICATION_ENV') ? getenv('APPLICATION_ENV') : 'production'));

//Ensure library/is on include_path
set_include_path(implode(PATH_SEPARATOR, array(
    realpath(APPLICATION_PATH . '/../library'),
    get_include_path(),
)));
/** Zend_Application */
require_once 'Zend/Application.php';

//Create application, bootstrap, and run
$application = new Zend_Application(
    APPLICATION_ENV,
    APPLICATION_PATH . '/configs/application.ini'
);

//Let 'er rip
$application->bootstrap()->run();

quand je lance ce

Avertissement: require_once(Zend/Application.php): failed to open stream: No such file or directory in /var/www/Giftercity_backup/index.php sur la ligne 18 erreur Fatale: require_once(): Failed opening required 'Zend/Application.php' (include_path=':.:/usr/share/php:/usr/share/pear') in /var/www/Giftercity_backup/index.php sur la ligne 18

On tombe souvent dans cette erreur, et à dépanner rapidement, suivez ces étapes : stackoverflow.com/a/36577021/2873507

OriginalL'auteur user2605708 | 2013-10-15