How write logs to file with unicorn config

[ahvahsky2008]

Its my uvicorn log_config.yaml. All works perfect untill i add logging to file. Its says to me

ValueError: not enough values to unpack (expected 5, got 0)
I try different variations of logging (FileHandler,RotateHandler) but same issue raised.

version: 1
disable_existing_loggers: False
formatters:
  default:
    "()": uvicorn.logging.DefaultFormatter
    format: '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
  access:
    "()": uvicorn.logging.AccessFormatter
    format: "[%(asctime)s %(process)d:%(threadName)s] %(name)s - %(levelname)s - %(message)s | %(filename)s:%(lineno)d"
handlers:
  default:
    formatter: default
    class: logging.StreamHandler
    stream: ext://sys.stderr

  access:
    formatter: access
    class: logging.StreamHandler
    stream: ext://sys.stdout
    
  file_handler:
    class: logging.FileHandler
    level: INFO
    formatter: access
    filename: info.log
    encoding: utf8
    mode: a

loggers:
  uvicorn.error:
    level: INFO
    handlers: [default]
    propagate: no

  uvicorn.access:
    level: INFO
    handlers: [access]
    propagate: no

[infernalx]

Not an expert but after i created custom formatter it seems to be working also not sure if empty lines matter but this is working

disable_existing_loggers: False
formatters:
  default:
    "()": uvicorn.logging.DefaultFormatter
    format: '[%(asctime)s] %(levelname)s %(message)s'
  access:
    "()": uvicorn.logging.AccessFormatter
    format: 'format: "[%(asctime)s %(process)d:%(threadName)s] %(name)s - %(levelname)s - %(message)s | %(filename)s:%(lineno)d"'
  logformat:
    format: 'format: "[%(asctime)s %(process)d:%(threadName)s] %(name)s - %(levelname)s - %(message)s | %(filename)s:%(lineno)d"'
handlers:
  file_handler:
    class: logging.FileHandler
    level: INFO
    formatter: logformat
    filename: info.log
    encoding: utf8
    mode: a
  default:
    formatter: default
    class: logging.StreamHandler
    stream: ext://sys.stderr
  access:
    formatter: access
    class: logging.StreamHandler
    stream: ext://sys.stdout
loggers:
  uvicorn.error:
    level: INFO
    handlers:
      - default
      - file_handler
    propagate: no
  uvicorn.access:
    level: INFO
    handlers:
      - access
      - file_handler
    propagate: no