您需要在mysql中创建用户"pma"或更改以下行(mysql的用户和密码):

yo need create the user "pma" in mysql or change this lines(user and password for mysql):

/* User for advanced features */
$cfg['Servers'][$i]['controluser'] = 'pma'; 
$cfg['Servers'][$i]['controlpass'] = '';

Linux:/etc/phpmyadmin/config.inc.php