我已在 mylocalhost 服务器中成功安装 Magento,当我尝试打开管理员和索引时出现此错误
[Wed Aug 01 00:47:57.088443 2018] [php7:error] [pid 12976] [client ::1:48615] PHP Fatal error: Uncaught Zend_Cache_Exception: cache_dir "/var/www/html/magento2/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/zendframework1/library/Zend/Cache/Backend/File.php(180): Zend_Cache::throwException('cache_dir "/var...')\n#1 /var/www/html/magento2/vendor/colinmollenhour/cache-backend-file/File.php(87): Zend_Cache_Backend_File->setCacheDir('/var/www/html/m...')\n#2 /var/www/html/magento2/vendor/magento/zendframework1/library/Zend/Cache.php(153): Cm_Cache_Backend_File->__construct(Array)\n#3 /var/www/html/magento2/vendor/magento/zendframework1/library/Zend/Cache.php(94): Zend_Cache::_makeBackend('Cm_Cache_Backen...', Array, true, true)\n#4 /var/www/html/magento2/lib/internal/Magento/Framework/App/Cache/Frontend/Factory.php(156): Zend_Cache::factory('Magento\\\\Framewo...', 'Cm_Cache_Backen...', Array, Array, true, true, true)\n#5 /var/www/html/magento2/lib/internal/Magento/Framework/Cache/Frontend/Ada in /var/www/html/magento2/vendor/magento/zendframework1/library/Zend/Cache.php on line 209, referer: http://localhost/
已尝试执行 chmod 777 /var/www/html/magento2/var/page_cache 仍然返回错误