Mongoose地理空间查询错误：未知顶级运算符：$ near

Question

使用此架构：

let mongoose = require("mongoose");
let GeoJSON = require('mongoose-geojson-schema');
    let dogSchema = new mongoose.Schema({
        //Some code omitted
        location: {
            type: mongoose.Schema.Types.Point,
            coordinates: [Number],
        },
        //Some code omitted
    });
dogSchema.index({"location": "2dsphere"});
module.exports = mongoose.model("Dog", dogSchema);

这种输入：

{
  "created" : ISODate("2018-03-04T02:17:58.868Z"),
  "name" : "Babee",
  "breed" : "Puddle",
  "age" : 11,
  "owner" : ObjectId("5a9b5756a1e44812d109f191"),
  "location" : { "type" : "Point", "coordinates" : [-118.4912, 34.0195] },
  "__v" : 0
}

我执行此查询：

 Dog.find({
        $near: {
        $geomentry: {
                    type: "Point",
                    coordinates: [-118.4452, 34.0689],
                }
            }
        }, function (error, result){
            //Some code omitted
   });

使用此索引：

index: '2dsphere'

产生此错误：

{ MongoError: unknown top level operator: $near
    at queryCallback (/Users/varun/Desktop/Programing/Woof/node_modules/mongodb-core/lib/cursor.js:223:25)
    at /Users/varun/Desktop/Programing/Woof/node_modules/mongodb-core/lib/connection/pool.js:541:18
    at _combinedTickCallback (internal/process/next_tick.js:131:7)
    at process._tickCallback (internal/process/next_tick.js:180:9)
  name: 'MongoError',
  message: 'unknown top level operator: $near',
  ok: 0,
  errmsg: 'unknown top level operator: $near',
  code: 2,
  codeName: 'BadValue' }

如何解决此错误？

更新

看来我有一个错误，索引被删除 Link