我试图运行我的简单pimcore脚本使用bin/console pimcore:run-script script.php命令。代码：

<?php
use \Pimcore\Model\Product;
namespace AppBundle\Command;
$user = \Pimcore\Model\DataObject\Product::getById(88228);
echo $user->getId();

字符串
但似乎没有具有该id的对象（但它存在）：

Running script src/AppBundle/Command/script.php
15:02:25 WARNING   [cache] Failed to fetch key "object_88228" ["key" => "object_88228","exception" => Doctrine\DBAL\Exception\ConnectionException^ { …}]
15:02:25 ERROR     [console] Error thrown while running command "pimcore:run-script 'src/AppBundle/Command/script.php'". Message: "Call to a member function getId() on null" ["exception" => Error { …},"command" => "pimcore:run-script 'src/AppBundle/Command/script.php'","message" => "Call to a member function getId() on null"]

In script.php line 5:
                                             
  Call to a member function getId() on null

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我做错了什么？谢谢你的帮助！
使用verbose：

Exception trace:
  at /home/ec2-user/my-project/src/AppBundle/Command/script.php:5
 include() at /home/ec2-user/my-project/vendor/pimcore/pimcore/bundles/CoreBundle/Command/RunScriptCommand.php:48
 Pimcore\Bundle\CoreBundle\Command\RunScriptCommand->execute() at /home/ec2-user/my-project/vendor/symfony/symfony/src/Symfony/Component/Console/Command/Command.php:255
 Symfony\Component\Console\Command\Command->run() at /home/ec2-user/my-project/vendor/symfony/symfony/src/Symfony/Component/Console/Application.php:1027
 Symfony\Component\Console\Application->doRunCommand() at /home/ec2-user/my-project/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Console/Application.php:97
 Symfony\Bundle\FrameworkBundle\Console\Application->doRunCommand() at /home/ec2-user/my-project/vendor/symfony/symfony/src/Symfony/Component/Console/Application.php:273
 Symfony\Component\Console\Application->doRun() at /home/ec2-user/my-project/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Console/Application.php:83
 Symfony\Bundle\FrameworkBundle\Console\Application->doRun() at /home/ec2-user/my-project/vendor/symfony/symfony/src/Symfony/Component/Console/Application.php:149
 Symfony\Component\Console\Application->run() at /home/ec2-user/my-project/bin/console:36

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