JS控制台说:
GET http://127.0.0.1/magento/pub/static/version1514906660/adminhtml/Magento/backend/en_GB/extjs/magento/pub/static/version1514906660/adminhtml/Magento/backend/en
user@user:/opt/lampp/htdocs/magento2$ php bin/magento module:status
PHP Fatal error: Uncaught Error: Class 'DOMDocument' not found in /opt/lampp/htdocs/magento2/vendor/magento/framework/C
/var/page_cache" is not writable in /var/www/html/magento2/vendor/magento/zendframework1/library/Zend/Cache.php:209\nStack trace:\n#0 /var/www/html/magento2/vendor/magento</e