Symfony : Case mismatch between loaded and declared class names - php

Question

I'm new on Symfony 6 and i've got some questions about this framework.
Recently i got this error but i don't understand why. I created all databases from the command line.
My error is : Case mismatch between loaded and declared class names: "App\Entity\tag" vs "App\Entity\Tag".
In my database all tables are written with lowercase syntaxe.
everything worked between I insert relation with all table.
i tried to insert this code in my entity to use the correct syntaxe but it doesn't work.
Entity\Tag.php
#[ORM\Table(name: 'tag')]
Some people speak about this parameter inside my database (MYSQL) but i don't know if this got an impact :
lower_case_table_names = (0 1 2)
Do you have an idea ?
This is my entity tag
<?php
namespace App\Entity;
use App\Repository\TagRepository;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping as ORM;
#[ORM\Entity(repositoryClass: TagRepository::class)]
class Tag
{
#[ORM\Id]
#[ORM\GeneratedValue]
#[ORM\Column]
private ?int $id = null;
#[ORM\Column(length: 255)]
private ?string $nomtag = null;
#[ORM\ManyToOne(inversedBy: 'idcatetag')]
#[ORM\JoinColumn(nullable: false)]
private ?catetag $idcatetag = null;
#[ORM\ManyToMany(targetEntity: Mission::class, mappedBy: 'idtagmissionassign')]
private Collection $missions;
#[ORM\ManyToMany(targetEntity: Service::class, mappedBy: 'idtagserviceassign')]
private Collection $services;
public function __construct()
{
$this->missions = new ArrayCollection();
$this->services = new ArrayCollection();
}
public function getId(): ?int
{
return $this->id;
}
public function getNomtag(): ?string
{
return $this->nomtag;
}
public function setNomtag(string $nomtag): self
{
$this->nomtag = $nomtag;
return $this;
}
public function getIdcatetag(): ?catetag
{
return $this->idcatetag;
}
public function setIdcatetag(?catetag $idcatetag): self
{
$this->idcatetag = $idcatetag;
return $this;
}
/**
* #return Collection<int, Mission>
*/
public function getMissions(): Collection
{
return $this->missions;
}
public function addMission(Mission $mission): self
{
if (!$this->missions->contains($mission)) {
$this->missions->add($mission);
$mission->addIdtagmissionassign($this);
}
return $this;
}
public function removeMission(Mission $mission): self
{
if ($this->missions->removeElement($mission)) {
$mission->removeIdtagmissionassign($this);
}
return $this;
}
/**
* #return Collection<int, Service>
*/
public function getServices(): Collection
{
return $this->services;
}
public function addService(Service $service): self
{
if (!$this->services->contains($service)) {
$this->services->add($service);
$service->addIdtagserviceassign($this);
}
return $this;
}
public function removeService(Service $service): self
{
if ($this->services->removeElement($service)) {
$service->removeIdtagserviceassign($this);
}
return $this;
}
}
This is my repo file :
<?php
namespace App\Repository;
use App\Entity\Tag;
use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
use Doctrine\Persistence\ManagerRegistry;
/**
* #extends ServiceEntityRepository<Tag>
*
* #method Tag|null find($id, $lockMode = null, $lockVersion = null)
* #method Tag|null findOneBy(array $criteria, array $orderBy = null)
* #method Tag[] findAll()
* #method Tag[] findBy(array $criteria, array $orderBy = null, $limit = null, $offset = null)
*/
class TagRepository extends ServiceEntityRepository
{
public function __construct(ManagerRegistry $registry)
{
parent::__construct($registry, Tag::class);
}
public function save(Tag $entity, bool $flush = false): void
{
$this->getEntityManager()->persist($entity);
if ($flush) {
$this->getEntityManager()->flush();
}
}
public function remove(Tag $entity, bool $flush = false): void
{
$this->getEntityManager()->remove($entity);
if ($flush) {
$this->getEntityManager()->flush();
}
}
// /**
// * #return Tag[] Returns an array of Tag objects
// */
// public function findByExampleField($value): array
// {
// return $this->createQueryBuilder('t')
// ->andWhere('t.exampleField = :val')
// ->setParameter('val', $value)
// ->orderBy('t.id', 'ASC')
// ->setMaxResults(10)
// ->getQuery()
// ->getResult()
// ;
// }
// public function findOneBySomeField($value): ?Tag
// {
// return $this->createQueryBuilder('t')
// ->andWhere('t.exampleField = :val')
// ->setParameter('val', $value)
// ->getQuery()
// ->getOneOrNullResult()
// ;
// }
}

Answer 1

check file name , it should be Tag.php with T uppercase, symfony create table automatically in lowercase. If everything is ok try to delete you're file and rewrite it properly with make:entity or php bin/console doctrine:schema:update --force after entity's modification