node.js - 带有 mongoosastic 错误的 keystonejs _doc.execPopulate()

Question

我正在尝试将 mongoosastic 插入我的 Keystone JS 应用程序并填充关系字段。找不到文档，并且由于 keystone 包装了模式模型，因此需要对 mongoose 文档进行一些翻译。有人可以告诉我我做错了什么吗？

var keystone = require('keystone');
var Types = keystone.Field.Types;
var mongoose = (keystone.mongoose);
var deepPopulate = require('mongoose-deep-populate')(mongoose);
var mongoosastic = require('mongoosastic');
var ProductCategory = keystone.List('ProductCategory').schema;

var Product = new keystone.List('Product', {
    map: { name: 'title' },
    autokey: { path: 'slug', from: 'title', unique: true },
    track: true,
});

Product.add(
    'Optional', {
        volume: { type: String },
        price: { type: Types.Number },
    },
    'Taxonomy', {
        category: {
            type: Types.Relationship,
            ref: 'ProductCategory',
            index: true,
            many: true,
            es_schema:ProductCategory,
            es_indexed: true,
            es_type: 'nested',
            es_include_in_parent: true
        },
    }

);


Product.schema.plugin(deepPopulate);
Product.schema.plugin(mongoosastic, {
   hosts: [
         'host here'
    ] 
    populate: [
        {path: 'category'}
    ]
})
Product.defaultColumns = 'title, brand, category, state|20%';
Product.register();

这是我收到的错误