Could not reach Cloud Firestore backend. Backend didnt respond within 10 seconds. (Firestore)

问题

I am having this problem in a new React-Native project even though I do have a good internet connection.

@firebase/firestore: Firestore (7.13.2): Could not reach Cloud Firestore backend. Backend didn't respond within 10 seconds.

this is my Firebase config file:

import firebase from 'firebase/app';

import {
    API_KEY,
    AUTH_DOMAIN,
    DATABASE_URL,
    PROJECT_ID,
    STORAGE_BUCKET,
    MESSAGING_SENDER_ID,
    APP_ID,
    MEASUREMENTID
} from "react-native-dotenv";


const config = {
    apiKey: API_KEY,
    authDomain: AUTH_DOMAIN,
    databaseURL: DATABASE_URL,
    projectId: PROJECT_ID,
    storageBucket: STORAGE_BUCKET,
    messagingSenderId: MESSAGING_SENDER_ID,
    appId: APP_ID,
    measurementId: MEASUREMENTID
}

firebase.initializeApp(config)
import "firebase/firestore";

export const firestore = firebase.firestore()

来源：https://stackoverflow.com/questions/61173976/could-not-reach-cloud-firestore-backend-backend-didnt-respond-within-10-seconds