I am having a problem with setting up the swagger into my node.js application. I am using swagger-jsdoc and swagger-ui-express for creating documentation. Here are the versions

"swagger-jsdoc": "3.5.0", "swagger-ui-express": "4.1.3"

Below is the configs, which I pass to swagger-jsdoc.

openapi: 3.0.0
info:
  description: test
  version: 3.0.0
  title: U-CRM api documentation
  termsOfService: http://swagger.io/terms/
servers:
  - url: 'https://localhost:5000'
    description: Local server
tags:
- name: U-CRM
  description: CRM for university
components:
  parameters:
    $ref: 'components/parameters/index.yml'
  schemas:
    $ref: 'components/schemas/index.yml'
paths:
  $ref: '#/paths/index.yml'

After all, I get an error

Cannot read property 'parameters' of undefined

Actually, it is surprising to me, as I read swagger docs carefully. What could be the problem?