php - InvalidArgumentException: The service definition "my.markdown.parser" does not exist -

i try instal bundle:knplabs/knpmarkdownbundle have error :

invalidargumentexception: service definition "my.markdown.parser" not exist. 

this section of requires :

"php": ">=5.3.3",         "symfony/symfony": "~2.4",         "doctrine/orm": "~2.2,>=2.2.3",         "doctrine/doctrine-bundle": "1.3.*@dev",         "twig/extensions": "~1.0",         "symfony/assetic-bundle": "~2.3",         "symfony/swiftmailer-bundle": "~2.3",         "symfony/monolog-bundle": "~2.4",         "sensio/distribution-bundle": "~2.3",         "sensio/framework-extra-bundle": "~3.0",         "sensio/generator-bundle": "~2.3",         "incenteev/composer-parameter-handler": "~2.0",         "jms/di-extra-bundle": "dev-master",         "doctrine/doctrine-fixtures-bundle": "2.2.*@dev",         "doctrine/data-fixtures": "1.0.*@dev",         "stof/doctrine-extensions-bundle": "~1.1@dev",         "knplabs/knp-markdown-bundle": "~1.3" 

and section of appkernel :

$bundles = array(             //....             new jms\diextrabundle\jmsdiextrabundle($this),             new jms\aopbundle\jmsaopbundle(),             new knp\bundle\markdownbundle\knpmarkdownbundle(),             new stof\doctrineextensionsbundle\stofdoctrineextensionsbundle(),         ); 

this part used bundle :

<i>le {{ article.date|date('d/m/y') }}, par {{ article.auteur|markdown }}.</i> {# on affiche les competence éventuelles #} {% if article.articlecompetences.count > 0 %}     <i>       competences :       {% categorie in article.articlecompetences %}         {{ categorie.competence.nom }}{% if not loop.last %}, {% endif %}       {% endfor %}     </i> {% endif %} 

unless intending configure bundle use own parser implementation, shouldn't have add bundle.

knp_markdown:     parser:         service: my.markdown.parser 

just remove it, , think default use knp\bundle\markdownbundle\parser\markdownparser parser.