谁能帮我解决这个问题？我不知道为什么，但我得到了这个例外：
可捕获的致命错误：AppBundle\Entity\Job 类的对象无法转换为字符串
我的实体类别：
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Category
*
* @ORM\Table(name="category")
* @ORM\Entity(repositoryClass="AppBundle\Repository\CategoryRepository")
*/
class Category
{
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="label", type="string", length=255)
*/
private $label;
/**
* @var string
*@ORM\ManyToMany(targetEntity="Job", mappedBy="categories", cascade={"persist", "merge"})
*/
private $jobs ;
/**
* Constructor
*/
public function __construct()
{
$this->jobs = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Get id
*
* @return int
*/
public function getId()
{
return $this->id;
}
/**
* Set label
*
* @param string $label
*
* @return Category
*/
public function setLabel($label)
{
$this->label = $label;
return $this;
}
/**
* Get label
*
* @return string
*/
public function getLabel()
{
return $this->label;
}
/**
* Add job
*
* @param \AppBundle\Entity\Job $job
*
* @return Category
*/
public function addJob(\AppBundle\Entity\Job $job)
{
$this->jobs[] = $job;
return $this;
}
/**
* Remove job
*
* @param \AppBundle\Entity\Job $job
*/
public function removeJob(\AppBundle\Entity\Job $job)
{
$this->jobs->removeElement($job);
}
/**
* Get jobs
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getJobs()
{
return $this->jobs;
}
}
实体配置（easyadmin），我选择自定义一些字段：
easy_admin:
design:
entities:
Category:
class: AppBundle\Entity\Category
屏幕截图是否解释了该错误或它的确切含义？
