Could not load type “filter” in SonataAdminBundle-Collection of common programming errors

I recently did a vendors/update and now my sonata admin is broken with the following error:

Symfony\Component\Form\Exception\FormException: Could not load type "filter" (uncaught exception) at /home/herman/WORK/bloomnet/sf/gaudeamus/vendor/symfony/src/Symfony/Component/Form/FormFactory.php line 383 

Normal CRUD actions outside sonata admin works fine. Sonata dashboard also is OK. Problem is when i try display the list of articles or create a new one. While creating, error is a little bit different:

Could not load type "s4fd8521531280"

where type is a random string and comes from the same line (383) in FormFactory.php

Before appear the error , I installed IvoryCKEditorBundle, but when I disabled this bundle in Kernel, error was still there

My config files: routing.yml

articles:
    resource: "@AcmeGaudeamusBundle/Controller/"
    type:     annotation
    prefix:   /    


admin:
    resource: '@SonataAdminBundle/Resources/config/routing/sonata_admin.xml'
    prefix: /admin

_sonata_admin:
    resource: .
    type: sonata_admin
    prefix: /admin

config.yml

imports:
    - { resource: parameters.ini }
    - { resource: security.yml }

framework:
    #esi:             ~
    #translator:      { fallback: %locale% }
    secret:          %secret%
    charset:         UTF-8
    router:          { resource: "%kernel.root_dir%/config/routing.yml" }
    form:            true
    csrf_protection: true
    validation:      { enable_annotations: true }
    templating:      { engines: ['twig'] } #assets_version: SomeVersionScheme
    session:
        default_locale: %locale%
        auto_start:     true

# Twig Configuration
twig:
    debug:            %kernel.debug%
    strict_variables: %kernel.debug%

# Assetic Configuration
assetic:
    debug:          %kernel.debug%
    use_controller: false
    # java: /usr/bin/java
    filters:
        cssrewrite: ~
        # closure:
        #     jar: %kernel.root_dir%/java/compiler.jar
        # yui_css:
        #     jar: %kernel.root_dir%/java/yuicompressor-2.4.2.jar

# Doctrine Configuration
doctrine:
    dbal:
        driver:   %database_driver%
        host:     %database_host%
        port:     %database_port%
        dbname:   %database_name%
        user:     %database_user%
        password: %database_password%
        charset:  UTF8

    orm:
        auto_generate_proxy_classes: %kernel.debug%
        auto_mapping: true

# Swiftmailer Configuration
swiftmailer:
    transport: %mailer_transport%
    host:      %mailer_host%
    username:  %mailer_user%
    password:  %mailer_password%

jms_security_extra:
    secure_controllers:  true
    secure_all_services: false

services:
    admin.article:
        class: Acme\GaudeamusBundle\Admin\ArticleAdmin
        tags: 
            - { name: sonata.admin, manager_type: orm, group: Articles, label: Articles }
        arguments: [null, Acme\GaudeamusBundle\Entity\Article, SonataAdminBundle:CRUD]

    admin.menu:
        class: Acme\GaudeamusBundle\Admin\MenuAdmin
        tags: 
            - { name: sonata.admin, manager_type: orm, group: Menu, label: Menu }
        arguments: [null, Acme\GaudeamusBundle\Entity\Menu, SonataAdminBundle:CRUD]

# app/config/config.yml
sonata_block:
    default_contexts: [cms]
    blocks:
        sonata.admin.block.admin_list:
            contexts:   [admin]

        #sonata.admin_doctrine_orm.block.audit:
        #    contexts:   [admin]

        sonata.block.service.text:
        sonata.block.service.action:
        sonata.block.service.rss:

        # Some specific block from the SonataMediaBundle
        #sonata.media.block.media:
        #sonata.media.block.gallery:
        #sonata.media.block.feature_media:        

security.yml:

security:
    encoders:
        Symfony\Component\Security\Core\User\User: plaintext

    role_hierarchy:
        ROLE_ADMIN:       ROLE_USER
        ROLE_SUPER_ADMIN: [ROLE_USER, ROLE_ADMIN, ROLE_ALLOWED_TO_SWITCH]

    providers:
        in_memory:
            users:
                user:  { password: userpass, roles: [ 'ROLE_USER' ] }
                admin: { password: adminpass, roles: [ 'ROLE_ADMIN' ] }

    firewalls:
        dev:
            pattern:  ^/(_(profiler|wdt)|css|images|js)/
            security: false

        login:
            pattern:  ^/demo/secured/login$
            security: false

        secured_area:
            pattern:    ^/demo/secured/
            form_login:
                check_path: /demo/secured/login_check
                login_path: /demo/secured/login
            logout:
                path:   /demo/secured/logout
                target: /demo/
            #anonymous: ~
            #http_basic:
            #    realm: "Secured Demo Area"

    access_control:
        #- { path: ^/login, roles: IS_AUTHENTICATED_ANONYMOUSLY, requires_channel: https }
        #- { path: ^/_internal, roles: IS_AUTHENTICATED_ANONYMOUSLY, ip: 127.0.0.1 }

ArticleAdmin.php

Originally posted 2013-11-27 12:10:13.