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Fatal error: Uncaught InvalidArgumentException: Identifier "security.authentication_providers" is not defined. in /var/www/html/eccube3/vendor/pimple/pimple/lib/Pimple.php:78 Stack trace: #0 /var/www/html/eccube3/vendor/silex/silex/src/Silex/Provider/SecurityServiceProvider.php(117): Pimple->offsetGet('security.authen...') #1 /var/www/html/eccube3/vendor/pimple/pimple/lib/Pimple.php(126): Silex\Provider\SecurityServiceProvider->Silex\Provider\{closure}(Object(Eccube\Application)) #2 /var/www/html/eccube3/vendor/pimple/pimple/lib/Pimple.php(83): Pimple::{closure}(Object(Eccube\Application)) #3 /var/www/html/eccube3/vendor/silex/silex/src/Silex/Provider/SecurityServiceProvider.php(82): Pimple->offsetGet('security.authen...') #4 /var/www/html/eccube3/vendor/pimple/pimple/lib/Pimple.php(126): Silex\Provider\SecurityServiceProvider->Silex\Provider\{closure}(Object(Eccube\Application)) #5 /var/www/html/eccube3/vendor/pimple/pimple/lib/Pimple.php(83): Pimple::{closure}(Object(Eccube\Application)) #6 /var/www/html/eccube3/vendor/ in /var/www/html/eccube3/vendor/pimple/pimple/lib/Pimple.php on line 78