Zend framework2 如何使ZfcUser使用抽象db_适配器

我正在使用Zend Framework 2，并且已经安装了ZfcUser模块

在我决定在我的

config/autoload/global.php中添加第二个db适配器之前，一切都正常工作

<?php
return array(
  'db' => array(
    'adapters' => array(
      'cleardb' => array(
        'driver'         => 'Pdo',
        'dsn'            => 'mysql:dbname=secret;host=secret.com',
        'driver_options' => array(
          ...
        ),
      ),
      'other' => array(...)
    )
  ),
  'service_manager' => array(
    'abstract_factories' => array(
      'Zend\Db\Adapter\AdapterAbstract'
      => 'Zend\Db\Adapter\AdapterAbstractServiceFactory',
    ),
  ),
);

这是我尝试登录时遇到的错误：

An alias "zfcuser_zend_db_adapter" was requested but no service could be found.

非常感谢您的帮助。
也许您的zfcuser.global.php中应该是“zend\u db\u adapter”=>“zend\db\adapter\AdapterAbstract”？
An alias "zfcuser_zend_db_adapter" was requested but no service could be found.