ClassNotFoundException: Attempted to load class "FOSUserBundle" from namespace "FOS\UserBundle" - php

Question

(Using WampServer on Windows 10.)
I followed the official documentation in order to install Sonata User Bundle over Symfony.
I get the following error message
(1/1) ClassNotFoundException Attempted to load class "FOSUserBundle"
from namespace "FOS\UserBundle". Did you forget a "use" statement for
another namespace?
AppKernel.php
<?php
use Symfony\Component\HttpKernel\Kernel;
use Symfony\Component\Config\Loader\LoaderInterface;
class AppKernel extends Kernel
{
public function registerBundles()
{
$bundles = [
new Symfony\Bundle\FrameworkBundle\FrameworkBundle(),
new Symfony\Bundle\SecurityBundle\SecurityBundle(),
new Symfony\Bundle\TwigBundle\TwigBundle(),
new Symfony\Bundle\MonologBundle\MonologBundle(),
new Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle(),
new Doctrine\Bundle\DoctrineBundle\DoctrineBundle(),
new Sensio\Bundle\FrameworkExtraBundle\SensioFrameworkExtraBundle(),
new AppBundle\AppBundle(),
new Sonata\CoreBundle\SonataCoreBundle(),
//Added following https://sonata-project.org/bundles/admin/3-x/doc/getting_started/installation.html
new Sonata\BlockBundle\SonataBlockBundle(),
new Knp\Bundle\MenuBundle\KnpMenuBundle(),
new Sonata\DoctrineORMAdminBundle\SonataDoctrineORMAdminBundle(),
new Sonata\AdminBundle\SonataAdminBundle(),
//Added following https://sonata-project.org/bundles/easy-extends/2-x/doc/reference/installation.html
new Sonata\EasyExtendsBundle\SonataEasyExtendsBundle(),
//Added following https://sonata-project.org/bundles/user/3-x/doc/reference/installation.html
new FOS\UserBundle\FOSUserBundle(),
new Sonata\UserBundle\SonataUserBundle('FOSUserBundle'),
];
if (in_array($this->getEnvironment(), ['dev', 'test'], true)) {
$bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();
$bundles[] = new Symfony\Bundle\WebProfilerBundle\WebProfilerBundle();
$bundles[] = new Sensio\Bundle\DistributionBundle\SensioDistributionBundle();
if ('dev' === $this->getEnvironment()) {
$bundles[] = new Sensio\Bundle\GeneratorBundle\SensioGeneratorBundle();
$bundles[] = new Symfony\Bundle\WebServerBundle\WebServerBundle();
}
}
return $bundles;
}
public function getRootDir()
{
return __DIR__;
}
public function getCacheDir()
{
return dirname(__DIR__).'/var/cache/'.$this->getEnvironment();
}
public function getLogDir()
{
return dirname(__DIR__).'/var/logs';
}
public function registerContainerConfiguration(LoaderInterface $loader)
{
$loader->load($this->getRootDir().'/config/config_'.$this->getEnvironment().'.yml');
}
}
config.yml
imports:
- { resource: parameters.yml }
- { resource: security.yml }
- { resource: services.yml }
# Put parameters here that don't need to change on each machine where the app is deployed
# https://symfony.com/doc/current/best_practices/configuration.html#application-related-configuration
parameters:
locale: en
framework:
#esi: ~
#translator: { fallbacks: ['%locale%'] }
secret: '%secret%'
router:
resource: '%kernel.project_dir%/app/config/routing.yml'
strict_requirements: ~
form: ~
csrf_protection: ~
validation: { enable_annotations: true }
#serializer: { enable_annotations: true }
templating:
engines: ['twig']
default_locale: '%locale%'
trusted_hosts: ~
session:
# https://symfony.com/doc/current/reference/configuration/framework.html#handler-id
handler_id: session.handler.native_file
save_path: '%kernel.project_dir%/var/sessions/%kernel.environment%'
fragments: ~
http_method_override: true
assets: ~
php_errors:
log: true
# Twig Configuration
twig:
debug: '%kernel.debug%'
strict_variables: '%kernel.debug%'
# Doctrine Configuration
doctrine:
dbal:
driver: pdo_mysql
host: '%database_host%'
port: '%database_port%'
dbname: '%database_name%'
user: '%database_user%'
password: '%database_password%'
charset: UTF8
# if using pdo_sqlite as your database driver:
# 1. add the path in parameters.yml
# e.g. database_path: '%kernel.project_dir%/var/data/data.sqlite'
# 2. Uncomment database_path in parameters.yml.dist
# 3. Uncomment next line:
#path: '%database_path%'
types:
json: Sonata\Doctrine\Types\JsonType
orm:
auto_generate_proxy_classes: '%kernel.debug%'
naming_strategy: doctrine.orm.naming_strategy.underscore
auto_mapping: true
entity_managers:
default:
mappings:
ApplicationSonataUserBundle: ~
SonataUserBundle: ~
FOSUserBundle: ~ # If SonataUserBundle extends it
# Swiftmailer Configuration
swiftmailer:
transport: '%mailer_transport%'
host: '%mailer_host%'
username: '%mailer_user%'
password: '%mailer_password%'
spool: { type: memory }
#Sonata
sonata_core:
form_type: horizontal
sonata_user:
security_acl: true
manager_type: orm # can be orm or mongodb
sonata_block:
default_contexts: [cms]
blocks:
# enable the SonataAdminBundle block
sonata.admin.block.admin_list:
contexts: [admin]
#...
sonata.user.block.menu: # used to display the menu in profile pages
sonata.user.block.account: # used to display menu option (login option)
sonata.block.service.text: # used to if you plan to use Sonata user routes
#FOSUser
fos_user:
db_driver: orm # can be orm or odm
firewall_name: main
user_class: Sonata\UserBundle\Entity\BaseUser
group:
group_class: Sonata\UserBundle\Entity\BaseGroup
group_manager: sonata.user.orm.group_manager # If you're using doctrine orm (use sonata.user.mongodb.group_manager for mongodb)
service:
user_manager: sonata.user.orm.user_manager # If you're using doctrine orm (use sonata.user.mongodb.user_manager for mongodb)
routing.yml
login_view:
path: '/login/'
defaults: { _controller: AppBundle:Login:view }
singlesingon_view:
path: '/authentication/singlesignon/'
defaults: { _controller: AppBundle:AuthenticationSingleSignOn:view }
singlesingout_view:
path: '/authentication/singlesignout/'
defaults: { _controller: AppBundle:AuthenticationSingleSignOut:view }
app:
resource: '#AppBundle/Controller/'
type: annotation
admin_area:
resource: "#SonataAdminBundle/Resources/config/routing/sonata_admin.xml"
prefix: /admin
sonata_user_admin_security:
resource: '#SonataUserBundle/Resources/config/routing/admin_security.xml'
prefix: /admin
sonata_user_admin_resetting:
resource: '#SonataUserBundle/Resources/config/routing/admin_resetting.xml'
prefix: /admin/resetting
When I reach step 2.5 which starts with running
php bin/console sonata:easy-extends:generate SonataUserBundle -d src
I get
Fatal error: Class 'FOS\UserBundle\FOSUserBundle' not found.
As requested in comments: autoload section of composer.json
"autoload": {
"psr-4": {
"AppBundle\\": "src/AppBundle"
},
"classmap": [ "app/AppKernel.php", "app/AppCache.php" ]
},

Answer 1

In composer.json
"autoload": {
"psr-0": {
"": "src/",
"Application": "app/"
}
},
than Update Composer :
composer update
if this dont work so try to fix the bundle by this command :
php app/console sonata:easy-extends:generate --dest=src SonataMediaBundle
Extend base user FosUser :
class Myusers extends BaseUser
{
}
In config.yml
fos_user:
user_class: MyBundle\Entity\Myusers