Something wrong with include_path in Zend Framework

Getting this error:

Fatal 开发者_运维问答error: require_once() [function.require]: Failed opening required 'db/db.php' (include_path='/home/domain.ru/testerier/sites/application/../library:/home/domain.ru/testerier/sites/library:.:/usr/local/lib/php;/home/domain.ru/testerier/sites/application/models') in /home/domain.ru/testerier/sites/www/index.php on line 51

// 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(),
)).";".realpath(APPLICATION_PATH . '/models'));

It's working perfectly on the local machine. What's wrong?

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Is your local machine a windwos machine and the server Linux? Then you might have a problem with case sensitivity. Windows is not case sensitive and therefore on windows Folder and folder are the same. On Linux they aren't. Maybe your library is actually Library or something.