How Symfony\Component\Validator\Validator could be properly injected into service?

Question

I am trying to inject a validator class into my service.

My service.yml config:

validator_service:
        class: AppBundle\Service\Validator\ValidatorService
        argument: ['@validator']

But insted I got an error:

Catchable Fatal Error: Argument 1 passed to AppBundle\Service\Validator\ValidatorService::__construct() must be an instance of Symfony\Component\Validator\Validator, none given...

How can I properly inject a validator class into my service? What principles should I guide next time, to find proper name for injection (may be some tutorial, that I missed in symfony's docs)?

Thanks

Answer 1

它是“参数”，而不是“参数”。