fos elasticasearch无法识别的选项index_analyzer search_analyzer映射

我被symfony错误阻止:

下无法识别的选项“index_analyzer,search_analyzer,mappings” “fos-elastica.indexes.optro.types.technical”协助

我使用symfony 3.4.11和fos elasticsearch 5.03。

怎么了?文件缩进?
配置文件的一部分:

types:
  technical_assistance:
    index_analyzer: my_nGram_index_analyzer
    search_analyzer: my_nGram_search_analyzer
    mappings:
      subject: { boost: 2 }
      description: ~
      equipment_reference: ~
      filename: ~
      trackingNumber: ~
      requester:
        type: "object"
        properties:
          first_name: ~
          last_name: ~
      section:
        type: "object"
        properties:
          name: ~
          translatedNames: ~
      messages:
        type: "object"
        properties:
          content: { boost: 0.5 }
          filename: ~
    persistence:
      driver: orm
      model: Optro\HelpdeskBundle\Entity\TechnicalAssistance
      provider: ~
      listener: ~
      finder:
        service: optro.finder.raw.technical_assistance