Sprintf error while making multiple ORM in symfony

I am trying to implement multiple database in my symfony project. In my doctrine.yaml file I have following setup:

orm:    auto_generate_proxy_classes: %kernel.debug%    default_entity_manager: default    entity_managers:        db1:            naming_strategy: doctrine.orm.naming_strategy.underscore            connection: db1            auto_mapping: true            mappings:                App:                    is_bundle: false                    type: annotation                    dir: '%kernel.project_dir%/src/Entity'                    prefix: 'App\Entity'                    alias: App        db2:            naming_strategy: doctrine.orm.naming_strategy.underscore            connection: db2            auto_mapping: true            mappings:                App:                    is_bundle: false                    type: annotation                    dir: '%kernel.project_dir%/src/Entity'                    prefix: 'App\Entity'                    alias: App

But I am getting following error:

Warning: sprintf(): Too few arguments in D:\xampp\htdocs\myProject\config/packages/doctrine.yaml (which is loaded in resource "D:\xampp\myProject\amringWebshop\config/packages/doctrine.yaml").