#1045 – Access denied for user ‘root’@’localhost’ (using password: YES)

wampmanager 3.1 启动数据库提示：#1045 – Access denied for user ‘root’@’localhost’ (using password: YES)，登入不了数据库。

因为默认配置文件中mySQL的空的。所以我们需要修改一配置文件。修改wamp安装目录下的apps\phpmyadmin4.7.4下的config.inc.php文件。

if($wampConf['SupportMySQL'] == 'on') {
/* Server: localhost [1] */
 $i++;
 if($mariaFirst) $i++;
 $cfg['Servers'][$i]['verbose'] = 'MySQL';
 $cfg['Servers'][$i]['host'] = '127.0.0.1';
 $cfg['Servers'][$i]['port'] = $wampConf['mysqlPortUsed'];
 $cfg['Servers'][$i]['extension'] = 'mysqli';
 $cfg['Servers'][$i]['auth_type'] = 'cookie';
 $cfg['Servers'][$i]['user'] = '';
 $cfg['Servers'][$i]['password'] = '';

https:// Hidden databases in PhpMyAdmin left panel
 https://$cfg['Servers'][$i]['hide_db'] = '(information_schema|mysql|performance_schema|sys)';

https:// Allow connection without password
 $cfg['Servers'][$i]['AllowNoPassword'] = true;

只需要修改默认user用户名，密码为空就可以了，user修改为：$cfg[‘Servers’][$i][‘user’] = ‘root’; 

然后重启MySQL就可以了。

如果出现提示：#1045 – Accès refusé pour l’utilisateur: ‘root’@’@localhost’ (mot de passe: NON)