尝试获取firebase身份验证时出错。无法读取未定义的属性(正在读取“getProvider”)

我正试图使用firebase的getAuth()命令在firebase中创建一个用户。当我启动Node.js服务器端代码时,我收到一个错误:

TypeError: Cannot read properties of undefined (reading 'getProvider') at Object._getProvider (/Users/mnjuhn/Projects/CloudMedic/src/routes/functions/node_modules/@firebase/app/dist/index.cjs.js:276:10)
    at getAuth (/Users/mnjuhn/Projects/CloudMedic/src/routes/functions/node_modules/@firebase/auth/dist/node/totp-fe65684a.js:8197:24)
    at Object.<anonymous> (/Users/mnjuhn/Projects/CloudMedic/src/routes/functions/app.js:26:14)
    at Module._compile (node:internal/modules/cjs/loader:1376:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1435:10)
    at Module.load (node:internal/modules/cjs/loader:1207:32)
    at Module._load (node:internal/modules/cjs/loader:1023:12)
    at Module.require (node:internal/modules/cjs/loader:1235:19)
    at require (node:internal/modules/helpers:176:18)
    at Object.<anonymous> (/Users/mnjuhn/Projects/CloudMedic/src/routes/functions/user.js:2:36)

这是我的用户和firebase应用程序代码。

var functions = require("firebase-functions");
const { getDatabase, ref, set, child, push, update } = require("firebase/database");
const { getAuth, onAuthStateChanged, signInWithEmailAndPassword, initializeAuth, createUserWithEmailAndPassword } = require("firebase/auth");
const { doc, setDoc } = require('firebase/firestore');
const { getFirestore, Timestamp, FieldValue, Filter } = require('firebase-admin/firestore');
const { initializeApp } =  require('firebase-admin/app');
const http = require('http');
const express = require('express');
var bodyParser = require('body-parser');
var router = express.Router();
var cors = require('cors');

const firebaseConfig = {
  // hidden configuration code
};

const admin = initializeApp(firebaseConfig);
const db = getFirestore(admin);
const auth = getAuth(admin);

const app = express();
app.use(cors());

app.use(bodyParser.json());
app.use(bodyParser.json({limit:'5mb'}));
app.use(bodyParser.urlencoded({extended:true}));
var jsonParser = bodyParser.json();

async function signIn(email, password) {

  signInWithEmailAndPassword(email, password).then((userCredential) => {
     // Signed in
     console.log("TEST Signed in");
     return userCredential;
   }).catch((error) => {
     const errorCode = error.code;
     const errorMessage = error.message;
     console.log("Error Signing in");
     console.log(error.message);
     throw error;
   });
}

exports.db = db;
exports.app = app;
exports.signIn = signIn;
exports.admin = admin;
exports.auth = auth;
exports.createUserWithEmailAndPassword = createUserWithEmailAndPassword;

这是我的创建用户代码。

var constants = require('./constants.js');
const { db, app, signIn, admin } = require('./app');
var cors = require('cors');
const { Timestamp } = require('firebase/firestore');

function signup(req, res) {
    birthDate = new Date(Number(req.query.birthDate));
    var user = {
         id: db.collection("users").doc().id,
         email: req.query.email, 
         password: req.query.password,
         firstName: req.query.firstName,
         lastName: req.query.lastName,
         gender: req.query.gender,
         birthDate: birthDate,
         timestamp: new Date()
   };

    const auth = app.auth;
    app.createUserWithEmailAndPassword(auth, req.query.email, req.query.password).then((userCredential) => {
       // Signed up
       const user = userCredential.user;
       console.log("USER SUCCESSFULLY CREATED");
      }).catch((error) => {
        const errorCode = error.code;
        const errorMessage = error.message;
        console.log("ERROR CREATING USER");
        // ..
      });

      return db.collection('users').doc(user.id).set(user).then(snapshot => {
          console.log(user);
          return res.status(200).json({status:200, message:"ADDED USER"});
      }).catch(err => {
          console.log(err);
          return res.status(200).json({status:200, message:"ERROR ADDING USER"});
      });
}

module.exports = {
  signup: signup,
};

这个错误可能源于const-auth=getAuth(admin)行;是使用firebase管理的结果吗?