我试图在MongoDB上创建自定义索引，但是当我通过命令行检查mongodb-compass时，它没有创建。
这是 Mongoose 模型

import Mongoose from "mongoose";
// import encrypt from "mongoose-encryption";
import dotenv from "dotenv";
import path from "path";
const __dirname = path.resolve();
dotenv.config({ path: __dirname + "/.env" });
const signupSchema = new Mongoose.Schema(
  {
    name: { type: String, required: [true, "name required"] },
    email: {
      type: String,
      required: [true, "email required"],
      unique: true,
      index: true,
    },
    phoneNumber: {
      type: Number,
      required: [true, "phone number required"],
      unique: true,
      index: true,
    },
    currentLocation: {
      type: String,
      required: [false, "current location required"],
    },
    password: { type: String, required: [true, "password requred"] },
    createdDate:{
      type:Date,
      default:Date.now
    },
  },
  {
    timestamps: true,
    timeseries: true,
  }
);
// const secretkey = process.env.MY_SECRET_KEY;
// signupSchema.plugin(encrypt, { secret: secretkey });
signupSchema.index({email:1,type:1})
const SignUpModel = Mongoose.model("SignUp", signupSchema);
export default SignUpModel;

我的索引. js

mongoose.connect(process.env.MONGODB_URL || 'mongodb://localhost/naukridb',{
    useNewUrlParser:true,
    useUnifiedTopology:true,
})
mongoose.pluralize(null)

查看未创建索引的指南针图像（即使在模型中定义）：

这是我要检查的命令行：

没有对电子邮件和电话号码创建索引，唯一示例也不起作用。
久经考验：
Mongoose create multiple indexes
Mongoose not creating index
Mongoose Not Creating Indexes
Mongoose does not create text index
mongoose index don't create
Mongoose Secondary Index is not created
但是没有一个解决方案是有效的。我的MongoDB版本是5.0.10。