title: Installation EasyAdmin on Symfony4
body: <p>I try to install EasyAdminBundle on fresh install of Symfony4 from this doc <a href="https://symfony.com/doc/current/bundles/EasyAdminBundle/index.html" rel="nofollow noreferrer">https://symfony.com/doc/current/bundles/EasyAdminBundle/index.html</a></p>
  
  <p>But I can't access to the back-end, I'm getting 404...</p>
  
  <p>I just type <code>composer require easycorp/easyadmin-bundle</code>, and add my entity(Command) to framework.yaml</p>
  
  <pre><code>framework:
      secret: '%env(APP_SECRET)%'
      #default_locale: en
      #csrf_protection: true
      #http_method_override: true
  
      # Enables session support. Note that the session will ONLY be started if you read or write from it.
      # Remove or comment this section to explicitly disable session support.
      session:
          handler_id: ~
  
      #esi: true
      #fragments: true
      php_errors:
          log: true
  
      cache:
          # Put the unique name of your app here: the prefix seed
          # is used to compute stable namespaces for cache keys.
          #prefix_seed: your_vendor_name/app_name
  
          # The app cache caches to the filesystem by default.
          # Other options include:
  
          # Redis
          #app: cache.adapter.redis
          #default_redis_provider: redis://localhost
  
          # APCu (not recommended with heavy random-write workloads as memory fragmentation can cause perf issues)
          #app: cache.adapter.apcu
  
      easy_admin:
          entities:
              # change the following to the namespaces of your own entities
              - App\Entity\Command
  </code></pre>
  
  <p>When I check my routes with <code>php bin/console debug:router</code></p>
  
  <pre><code>-------------------------- -------- -------- ------ -----------------------------------
    Name                       Method   Scheme   Host   Path
   -------------------------- -------- -------- ------ -----------------------------------
    easyadmin                  ANY      ANY      ANY    /admin/
    admin                      ANY      ANY      ANY    /admin/
    _twig_error_test           ANY      ANY      ANY    /_error/{code}.{_format}
    _wdt                       ANY      ANY      ANY    /_wdt/{token}
    _profiler_home             ANY      ANY      ANY    /_profiler/
    _profiler_search           ANY      ANY      ANY    /_profiler/search
    _profiler_search_bar       ANY      ANY      ANY    /_profiler/search_bar
    _profiler_phpinfo          ANY      ANY      ANY    /_profiler/phpinfo
    _profiler_search_results   ANY      ANY      ANY    /_profiler/{token}/search/results
    _profiler_open_file        ANY      ANY      ANY    /_profiler/open
    _profiler                  ANY      ANY      ANY    /_profiler/{token}
    _profiler_router           ANY      ANY      ANY    /_profiler/{token}/router
    _profiler_exception        ANY      ANY      ANY    /_profiler/{token}/exception
    _profiler_exception_css    ANY      ANY      ANY    /_profiler/{token}/exception.css
   -------------------------- -------- -------- ------ -----------------------------------
  </code></pre>
  
  <p>Could some one enlighten me ?
  Be wrong on the first line of configuration is so frustrating...</p>