Firebase 错误 Cannot find module \'firebase/app\' on React 18答案

【问题标题】：Firebase error Cannot find module 'firebase/app' on React 18Firebase 错误 Cannot find module \'firebase/app\' on React 18
【发布时间】：2023-02-04 04:11:11
【问题描述】：

我最近已经在另一个应用程序上使用过 Firebase。但是这次我在控制台上收到了那个错误。

它在页面上抛出此错误

./src/Context/AuthContext.jsx 8:0-49 中的错误

./src/Firebase.js 4:0-45 中的错误

这在控制台上

bundle.js:1861 未捕获错误：找不到模块“firebase/app”
在 webpackMissingModule (bundle.js:1861:50)
在 ./src/Firebase.js (bundle.js:1861:137)
在 options.factory (bundle.js:126646:31)
在webpack_require(bundle.js:126092:33)
在 fn (bundle.js:126303:21)
在 ./src/Context/AuthContext.jsx (bundle.js:1641:67)
在 options.factory (bundle.js:126646:31)
在webpack_require(bundle.js:126092:33)
在 fn (bundle.js:126303:21)
在 ./src/App.js (bundle.js:20:78)

这是我的 Firebase.js 文件

// Import the functions you need from the SDKs you need

import { initializeApp } from "firebase/app";
import { getAuth } from "firebase/auth";
import { getFirestore } from "firebase/firestore";

// TODO: Add SDKs for Firebase products that you want to use
// https://firebase.google.com/docs/web/setup#available-libraries

// Your web app's Firebase configuration

const firebaseConfig = {
  apiKey: process.env.REACT_APP_FIREBASE_API_KEY,
  authDomain: process.env.REACT_APP_FIREBASE_AUTH_DOMAIN,
  projectId: process.env.REACT_APP_FIREBASE_PROJECT_ID,
  storageBucket: process.env.REACT_APP_FIREBASE_STORAGE_BUCKET,
  messagingSenderId: process.env.REACT_APP_FIREBASE_MESSAGING_SENDER,
  appId: process.env.REACT_APP_FIREBASE_APP_ID,
};

// Initialize Firebase

const app = initializeApp(firebaseConfig);
export const auth = getAuth(app);
export const db = getFirestore(app);

export default app;

而这个提供者上下文文件

import { createContext, useContext, useState, useEffect } from "react";
import { auth, db } from "../Firebase";
import { doc, setDoc } from "firebase/firestore";
import {
  createUserWithEmailAndPassword,
  signInWithEmailAndPassword,
  signOut,
  onAuthStateChanged,
} from "firebase/auth";

const UserContext = createContext();

export const AuthContextProvider = ({ children }) => {
  const [user, setUser] = useState({});

  const signUp = (email, password) => {
    createUserWithEmailAndPassword(auth, email, password);
    return setDoc(doc(db, "users", email), {
      favList: [],
    });
  };
  const signIn = (email, password) => {
    return signInWithEmailAndPassword(auth, email, password);
  };

  const logout = () => {
    return signOut(auth);
  };

  useEffect(() => {
    const unsubscribe = onAuthStateChanged(auth, (currentUser) => {
      setUser(currentUser);
    });
    return () => {
      unsubscribe();
    };
  }, []);

  return (
    <UserContext.Provider value={{ signUp, signIn, logout, user }}>
      {children}
    </UserContext.Provider>
  );
};

export const UserAuth = () => {
  return useContext(UserContext);
};

package.json

{
  "name": "cryptotracker-app",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@testing-library/jest-dom": "^5.16.5",
    "@testing-library/react": "^13.4.0",
    "@testing-library/user-event": "^13.5.0",
    "axios": "^1.3.1",
    "dompurify": "^2.4.3",
    "firebase": "^9.17.0",
    "react": "^18.2.0",
    "react-dom": "^18.2.0",
    "react-icons": "^4.7.1",
    "react-router-dom": "^6.8.0",
    "react-scripts": "5.0.1",
    "react-sparklines": "^1.7.0",
    "web-vitals": "^2.1.4"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  },
  "devDependencies": {
    "tailwindcss": "^3.2.4"
  }
}

我尝试了大多数方法，例如卸载和安装，但它们没有用。

【问题讨论】：

你能分享你的package.json吗？
贴在这里
有一些 issues 和 "firebase": "^9.17.0"。考虑试试"9.16.0"？

标签： javascript reactjs firebase

【解决方案1】：

我也遇到了同样的错误，但是在删除 firebase 版本 9.17.0 并使用其 9.16.0 版本重新安装 firebase 之后，所有错误都已解决。最新版本的 firebase 可能不稳定。

【讨论】：