Symfony：日志未显示在工具栏中

Question

我有Symfony 2.8并且已激活日志记录。在我的app / logs中，dir是dev.log文件，它工作正常。 但是我的Symfony工具栏中没有显示日志，当我打开Profiler时，日志菜单点也没有激活。我是否必须在配置中激活它？谢谢你的帮助！

我的config_dev.yml

imports:
    - { resource: config.yml }

framework:
    router:
        resource: "%kernel.root_dir%/config/routing_dev.yml"
        strict_requirements: true
    profiler: { only_exceptions: false }
    default_locale: "%locale%"

web_profiler:
    toolbar: true
    intercept_redirects: false

monolog:
    handlers:
        main:
            type: stream
            path: "%kernel.logs_dir%/%kernel.environment%.log"
            level: debug
            channels: [!event]
        console:
            type:   console
            bubble: false
            channels: [!event, !doctrine]
        # uncomment to get logging in your browser
        # you may have to allow bigger header sizes in your Web server configuration
        #firephp:
        #    type:   firephp
        #    level:  info
        #chromephp:
        #    type:   chromephp
        #    level:  info

assetic:
    use_controller: true

swiftmailer:
#    delivery_address: me@example.com
    disable_delivery: true

my_website:
    environment: "%locale%"