The child node "db_driver" at path "fos_user" must be configured, Symfony 3.4

[Nikita]

Hello! I have such problem with FOSUserBundle installation - I get an error The child node "db_driver" at path "fos_user" must be configured

It is written in the official documentation that

If you encounter installation errors pointing at a lack of configuration parameters, such as The child node "db_driver" at path "fos_user" must be configured, you should complete the configuration in Step 5 first and then re-run this step

Ok, I'm looking at step 5. Add the following configuration to your config.yml. But there isn't such file in my Symfony version. In folder 'config' I have only routes.yaml and services.yaml. And security.yml from step 4 doesn't exists too.

Next, I have tried to create these files:

config/security.yml

security:
  firewalls:
    main:
      csrf_token_generator: security.csrf.token_manager

framework:
  csrf_protection: true

  access_control:
    - { path: ^/login$, role: IS_AUTHENTICATED_ANONYMOUSLY }
    - { path: ^/register, role: IS_AUTHENTICATED_ANONYMOUSLY }
    - { path: ^/resetting, role: IS_AUTHENTICATED_ANONYMOUSLY }
    - { path: ^/admin/, role: ROLE_ADMIN }

config/config.yml

fos_user:
  db_driver: orm # other valid values are 'mongodb' and 'couchdb'
  firewall_name: main
  user_class: AppBundle\Entity\FOS_User

The class FOS_User is defined in src/Entity/FOS_User.php. The problem isn't fixed.

[Antoine 〰️]

Hey!

Normally at installation, the created file is in config/packages. It's called fos_user.yaml.
Delete what you added in the config.yml. And rather modify the file fos_user.yaml.
The doc has not been updated since 3.4 ;)