invalid components: schema "Error_400": invalid example: Error at "/errors/0/source": there must be at most 1 properties
Schema:
  {
    "description": "an object containing references to the source of the error",
    "maxProperties": 1,
    "properties": {
      "example": {
        "description": "a string indicating an example of the right value",
        "type": "string"
      },
      "parameter": {
        "description": "a string indicating which URI query parameter caused the issue",
        "type": "string"
      },
      "pointer": {
        "description": "a JSON Pointer [RFC6901] to the associated entity in the request document",
        "type": "string"
      }
    },
    "title": "Issue_Source",
    "type": "object"
  }

Value:
  {
    "example": "CDG",
    "parameter": "airport"
  }
