相关疑难解决方法(0)

当我尝试上载与图像断言不匹配的错误文件时,会发生此错误.只接受图像.

用户实体:

<?php

namespace Test\BackBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\HttpFoundation\File\UploadedFile;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;

/**
 * User
 *
 * @ORM\Table(name="user")
 * @ORM\Entity
 * @UniqueEntity(
 *     fields={"email"},
 *     message="This email already exists."
 *  )
 */
class User implements UserInterface
{
    /**
     * @var integer
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var string
     *
     * @ORM\Column(name="lastName", type="string", length=255)
     * @Assert\NotBlank()
     */
    private $lastName;

    /**
     * @var string
     *
     * @ORM\Column(name="firstName", …