Symfony 4 - no such service exists for ObjectManager after composer update

This seems to be due to the upgrade of doctrine-bundle => v2.0.0.

You have to change :

• Symfony\Bridge\Doctrine\RegistryInterface => Doctrine\Common\Persistence\ManagerRegistry
• Doctrine\Common\Persistence\ObjectManager => Doctrine\ORM\EntityManagerInterface

In your "App\Repository\AbsenceRepository" please update your constructor:

public function __construct(\Doctrine\Common\Persistence\ManagerRegistry $registry)
{
    parent::__construct($registry, Address::class);
}

If not you can also come back to version 1.12.2 of doctrine-bundle

composer require doctrine/doctrine-bundle 1.12.2

Similar issue to update Symfony 4.2 to 4.4,
In practice, I search/replace in all my src/Repository/*
Symfony\Bridge\Doctrine\RegistryInterface -> Doctrine\Common\Persistence\ManagerRegistry in USE
and
RegistryInterface -> \Doctrine\Common\Persistence\ManagerRegistry in __construct

if you use vim (vi -p src/Repository/*.php), here are:

:tabdo %s/Symfony\\Bridge\\Doctrine\\RegistryInterface/Doctrine\\Common\\Persistence\\ManagerRegistry/cg
:tabdo %s/RegistryInterface/\\Doctrine\\Common\\Persistence\\ManagerRegistry/cg

and my site works fine in 4.4.8

Change the Namespace of ObjectManager to Doctrine\Persistence\ObjectManager; instead of Doctrine\Common\Persistence\ObjectManager;