Fatal error: Uncaught Error: Class 'Locale' not found in /home/webproje/public_html/demo/magento2/vendor/magento/framework/Locale/Bundle/DataBundle.php:64 Stack trace: #0 /home/webproje/public_html/demo/magento2/vendor/magento/framework/Locale/Bundle/DataBundle.php(28): Magento\Framework\Locale\Bundle\DataBundle->cleanLocale('en_US') #1 /home/webproje/public_html/demo/magento2/vendor/magento/framework/Setup/Lists.php(80): Magento\Framework\Locale\Bundle\DataBundle->get('en_US') #2 /home/webproje/public_html/demo/magento2/vendor/magento/framework/Validator/Locale.php(42): Magento\Framework\Setup\Lists->getLocaleList() #3 /home/webproje/public_html/demo/magento2/vendor/magento/module-backend/Model/Locale/Resolver.php(72): Magento\Framework\Validator\Locale->isValid(NULL) #4 /home/webproje/public_html/demo/magento2/vendor/magento/framework/Locale/Resolver.php(65): Magento\Backend\Model\Locale\Resolver->setLocale(NULL) #5 /home/webproje/public_html/demo/magento2/vendor/magento/module-backend/Model/Locale/Resolver.php(60): Mag in /home/webproje/public_html/demo/magento2/vendor/magento/framework/Locale/Bundle/DataBundle.php on line 64