Php 将PayWithAmazon与symfony 2一起使用-与Composer一起安装

我通过composer安装了此软件包：

composer require amzn/login-and-pay-with-amazon-sdk-php
composer update

我将此添加到我的控制器文件： 使用PayWithAmazon\Client

。。。并且希望使用此包提供的客户机类

$amazonClient=newpaywithamazon\Client（$this->amazonCredentials）

框架的错误消息：

ClassNotFoundException in CartController.php line 185: Attempted to load 
    class "Client" from namespace "**Microsite\FrontBundle\Controller\PayWithAmazon**".
Did you forget a "use" statement for e.g.
    "Symfony\Bundle\FrameworkBundle\Client",
    "Symfony\Component\BrowserKit\Client",
    "Symfony\Component\HttpKernel\Client",
    "Guzzle\Service\Client" or "Guzzle\Http\Client"?

`

谁能告诉我我做错了什么？
如何将“Client”类的命名空间从
Microsite\FrontBundle\Controller\PayWithAmazon
更改为正确的命名空间

（我没有其他软件包的问题…）

干杯
格雷格
我建议你照办

use PayWithAmazon\Client as AmazonClient;
...
$amazonClient = new AmazonClient($this->amazonCredentials);

正确的机构：$amazonClient=new\PayWithAmazon\Client（$this->amazonCredentials）；