错误:必须实现接口 ZendStdlibHydratorHydratorInterface

我正在关注 https://zf2-docs.readthedocs.org/en/latest/in-depth-guide/zend-db-sql-zend-stdlib-hydrator.html

这是我的代码

ZendDbSqlMapper.php

namespace Blog'Mapper;
use Blog'Model'PostInterface;
use Zend'Db'Adapter'AdapterInterface;
use Zend'Db'Adapter'Driver'ResultInterface;
use Zend'Db'ResultSet'ResultSet;
use Zend'Db'ResultSet'HydratingResultSet; 
use Zend'Db'Sql'Sql;
use Zend'Stdlib'Hydrator'HydratorInterface;
class ZendDbSqlMapper implements PostMapperInterface{
   protected $dbAdapter;
   protected $hydrator;
   protected $postPrototype;
   public function __construct(AdapterInterface $dbAdapter,HydratorInterface $hydrator,PostInterface $postPrototype) {
    $this->dbAdapter = $dbAdapter;
    $this->hydrator = $hydrator;
    $this->postPrototype = $postPrototype;
}
public function find($id){
}
public function findAll()
{
    $sql = new Sql($this->dbAdapter);
    $select = $sql->select('posts');
    $stmt = $sql->prepareStatementForSqlObject($select);
    $result = $stmt->execute();

    if($result instanceof ResultInterface && $result->isQueryResult())
    {
         $resultSet = new HydratingResultSet($this->hydrator,$this->postPrototype);

        return $resultSet->initialize($result);
    }

    return array();
   }
 }

ZendDbSqlMapperFactory.php

namespace Blog'Factory;
use Blog'Mapper'ZendDbSqlMapper;
use Blog'Model'Post;
use Zend'ServiceManager'FactoryInterface;
use Zend'ServiceManager'ServiceLocatorInterface;
use Zend'Stdlib'Hydrator'ClassMethods;

  class ZendDbSqlMapperFactory implements FactoryInterface{
    public function createService(ServiceLocatorInterface $serviceLocator) {
    return new ZendDbSqlMapper($serviceLocator->get('Zend'Db'Adapter'Adapter',new ClassMethods(false),new Post()));
   }    
 }

模块配置.php

 'service_manager'=>array(
    'factories'=>array(
        'Blog'Mapper'PostMapperInterface'=>'Blog'Factory'ZendDbSqlMapperFactory',
        'Blog'Service'PostServiceInterface'=>'Blog'Factory'PostServiceFactory',
        'Zend'Db'Adapter'Adapter'=>'Zend'Db'Adapter'AdapterServiceFactory'
    )
),

问题：

它显示错误，例如

可捕获的致命错误：参数 2 传递给 Blog''Mapper''ZendDbSqlMapper：：__construct（） 必须实现接口 Zend''Stdlib''Hydrator''HydratorInterface，没有给出，调用 /var/www/zend2/module/Blog/src/Blog/Factory/ZendDbSqlMapperFactory.php 在第 16 行并在 /var/www/zend2/module/Blog/src/Blog/Mapper/ZendDbSqlMapper.php on line 21

我不明白为什么它没有检测到HydratorInterface.它是否像 https://github.com/zendframework/zend-stdlib/issues/25 一样被弃用

我正在使用Zend framework 2.3.3