I have a registration form - from FOSUserBundle this is in the template:
{% form_theme form \'AcmeMyBundle:Form:errors.html.twig\' %}
# config.yml
# ...
fos_user:
db_driver: orm
firewall_name: main
user_class: Acme\YourBundle\Entity\User
registration:
form:
type: acme_user_registration
validation_groups: [Registration]
# ...
Adding the last line ("validation_groups: [Registration]") results in only one error. Only FOSUserBundle validation: "Registration".