Doctrine 2 not creating foreign key

Question

I have this piece of code inside an Entity:

/**
 * @ORM\ManyToOne(targetEntity="Centers")
 * @ORM\JoinColumn(name="center_id", referencedColumnName="id")
 * @ORM\Column(type="string", length=36, name="center_id")
 */
protected $centerId;

However, schema:update says that all is in sync. Even changing Centers to some other inexistent word, produces no error.

Answer 1

Please delete the last line of annotation doctrine like this and change $centerId by $center (there is object an object) :

/**
 * @ORM\ManyToOne(targetEntity="Centers")
 * @ORM\JoinColumn(name="center_id", referencedColumnName="id")
 */
protected $center;

Clear cache and run your command.

Tell me if this solved your problem.