Symfony 3 - You have requested a non-existent service is driving me crazy

Question

So, this is not the first time I am creating the service but I just can't resolve the error

You have requested a non-existent service "global_settings".

Steps I took to ensure service is properly setup:

My AppBundleExtension.php

namespace AppBundle\DependencyInjection;  use Symfony\Component\Config\FileLocator; use Symfony\Component\DependencyInjection\ContainerBuilder; use Symfony\Component\DependencyInjection\Extension\Extension; use Symfony\Component\DependencyInjection\Loader;  class AppBundleExtension extends Extension {     public function load(array $configs, ContainerBuilder $container)     {         $configuration = new Configuration();         $config = $this->processConfiguration($configuration, $configs);          $loader = new Loader\XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));         $loader->load('settings.xml');     } } 

My settings.xml

<?xml version="1.0" encoding="UTF-8" ?> <container         xmlns="http://symfony.com/schema/dic/services"         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">     <services>         <service id="global_settings" class="AppBundle\Services\GlobalSettings">             <call method="setEntityManager">                 <argument type="service" id="doctrine.orm.default_entity_manager" />             </call>         </service>     </services> </container> 

My GlobalSettings service

namespace AppBundle\Services; use Doctrine\ORM\EntityManager; use Doctrine\ORM\EntityRepository;     class GlobalSettings     {          /**          * @var EntityManager          */         protected $em;         /**          * @var EntityRepository          */         protected $repo;          public function setEntityManager(EntityManager $em) {             $this->em = $em;             $this->repo = null;         }          /**          * @return array with name => value          */         public function all() {             return $this->$this->getRepo()->findAll();         }           /**          * @param string $name Name of the setting.          * @return string|null Value of the setting.          * @throws \RuntimeException If the setting is not defined.          */         public function get($name) {             $setting = $this->$this->getRepo()->findOneBy(array(                 'name' => $name,             ));             if ($setting === null) {                 throw $this->createNotFoundException($name);             }             return $setting->getValue();         }         /**          * @param string $name Name of the setting to update.          * @param string|null $value New value for the setting.          * @throws \RuntimeException If the setting is not defined.          */         public function set($name, $value) {             $setting = $this->$this->getRepo()->findOneBy(array(                 'name' => $name,             ));             if ($setting === null) {                 throw $this->createNotFoundException($name);             }             $setting->setValue($value);             $this->em->flush($setting);         }         /**          * @return EntityRepository          */         protected function getRepo() {             if ($this->repo === null) {                 $this->repo = $this->em->getRepository('AppBundle:Settings');             }             return $this->repo;         }          /**          * @param string $name Name of the setting.          * @return \RuntimeException          */         protected function createNotFoundException($name) {             return new \RuntimeException(sprintf('Setting "%s" couldn\'t be found.', $name));         }       } 

Then inside my controller I trying to access the service using the following code

$data = $this->get('global_settings')->get('paypal_email'); 

What am I doing wrong? Any help will be really appreciate as I am out of idea.

Answer 1

The reason why I kept getting this error was that my default setting for services was public: false

So to fix that I needed to set the public property to true for my service

services:     # default configuration for services in *this* file     _defaults:         # automatically injects dependencies in your services         autowire: true         # automatically registers your services as commands, event subscribers, etc.         autoconfigure: true         # this means you cannot fetch services directly from the container via $container->get()         # if you need to do this, you can override this setting on individual services         public: false      my_service:         class: AppBundle\Service\MyService         public: true 

Answer 2

You wrote:

Steps I took to ensure service is properly setup

My AppBundleExtension.php

And:

I know AppBundleExtension is not loading, what do I need to do to load it? What am I missing?

So it was clear that the AppBundleExtension class was not loaded.

According to the official documentation you should remove the Bundle in the file name and class name:

The name is equal to the bundle name with the Bundle suffix replaced by Extension (e.g. the Extension class of the AppBundle would be called AppExtension and the one for AcmeHelloBundle would be called AcmeHelloExtension).