liipimaginebundle，未生成缓存/媒体文件夹，

Question

我安装了“liipimaginebundle”，我试图调整一些图片...问题是当我应用树枝过滤器时：  

我在网络文件夹中找不到任何文件夹（/ media / cache），没有生成任何内容：/

  

应用程序/ config.yml

liip_imagine :
resolvers :
    default :
        web_path : ~

filter_sets :
    cache : ~
    produit :
        quality : 75
        filters :
            thumbnail  : { size : [120, 90], mode : outbound }

  

的routing.yml

gt_it:
    resource: "@GtItBundle/Resources/config/routing.yml"
    prefix:   /
utilisateurs:
    resource: "@UtilisateursBundle/Resources/config/routing.yml"
    prefix:   /
_liip_imagine:
    resource: "@LiipImagineBundle/Resources/config/routing.xml"

  

composer.json

"require": {
        "php": ">=5.3.3",
        "symfony/symfony": "~2.4",
       "doctrine/orm": "~2.2,>=2.2.3",
        "doctrine/doctrine-bundle": "~1.2",
        "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",
        "friendsofsymfony/user-bundle": "~2.0@dev",
        "doctrine/doctrine-fixtures-bundle": "dev-master",
        "knplabs/knp-paginator-bundle": "dev-master",
        "liip/imagine-bundle" : "dev-master",
        "knplabs/knp-time-bundle": "^1.6"





    },

and this the inspect html url element , but ther's no image or folder called media/cache ...

因为我正在使用更多的窗户所以我认为我没有获得许可的问题......伙计们请帮帮我