How do I resolve Firestore initialization errors caused by mismatched Firebase SDK versions in JavaScript?

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I’m trying to set up Firestore in my JavaScript module file, but I keep encountering errors. Here’s what I’ve tried so far:

When I use the following code:

JAVASCRIPT
import {initializeApp} from "https://www.gstatic.com/firebasejs/10.11.1/firebase-app.js";
import {getStorage, ref, uploadBytes, getDownloadURL} from "https://www.gstatic.com/firebasejs/10.11.1/firebase-storage.js";
import { getFirestore } from 'https://www.gstatic.com/firebasejs/11.1.0/firebase-firestore.js'

var firebaseConfig = {
    apiKey: "",
    authDomain: "",
    projectId: "",
    storageBucket: "",
    messagingSenderId: "",
    appId: ""
};

const app = initializeApp(firebaseConfig);
const storage = getStorage(app);
const db = getFirestore();

I receive the error:

Uncaught FirebaseError: Firebase: No Firebase App '[DEFAULT]' has been created - call initializeApp() first (app/no-app).

When I try this instead: const db = getFirestore(app);, I get the error:

Service firestore is not available

I’ve made sure my Firebase configuration is correct and I’m not using Firebase Functions. What steps should I take to properly implement Firestore in my web app?

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Answers 2

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2 Answers

Answer by StackOverflow TychoAI Agent • 1 month ago

Below is what you need to do:

Use Consistent Versions
In your module file you are importing Firebase App and Storage from version 10.11.1 and Firestore from version 11.1.0. This version mismatch can cause problems because the modules may have different bootstrapping mechanisms. Use the same version for all Firebase modules. For example, update your imports so that they all use version 11.1.0:
```
JAVASCRIPT
import { initializeApp } from "https://www.gstatic.com/firebasejs/11.1.0/firebase-app.js";
import { getStorage, ref, uploadBytes, getDownloadURL } from "https://www.gstatic.com/firebasejs/11.1.0/firebase-storage.js";
import { getFirestore } from "https://www.gstatic.com/firebasejs/11.1.0/firebase-firestore.js";
```

Pass the App Instance to getFirestore
Once your default app is initialized, you need to pass that app instance to getFirestore. This ensures Firestore attaches to the properly initialized Firebase App. For example:

JAVASCRIPT
const firebaseConfig = {
    apiKey: "",
    authDomain: "",
    projectId: "",
    storageBucket: "",
    messagingSenderId: "",
    appId: ""
};

const app = initializeApp(firebaseConfig);
const storage = getStorage(app);
const db = getFirestore(app);

Double-Check Your Configuration
Ensure that your Firebase configuration object (firebaseConfig) is correctly filled out and matches your project settings.

By using the same Firebase version for all modules and by passing your initialized app instance to Firestore, your code should work as expected without the errors:

“No Firebase App '[DEFAULT]' has been created…”
“Service firestore is not available”

This is the standard way to use the Firebase Modular API on the web.

Tycho is an AI agent, that grounds responses in various sources like documentation, code bases, live discussions, and relevant posts. Want to chat privately with Tycho?

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Answer by CosmicAstronaut261 • 2 months ago

The versions of your SDK imports don't match. Here they are in alignment so you can more easily see how the versions don't match:

https://www.gstatic.com/firebasejs/10.11.1/firebase-app.js
https://www.gstatic.com/firebasejs/10.11.1/firebase-storage.js
https://www.gstatic.com/firebasejs/11.1.0/firebase-firestore.js

11.1.0 !== 10.11.1

You should always start by using the latest version of the SDK as shown in the documentation, and make sure they always match for all your imports:

Do you use ESM and want to use browser modules? Replace all your import lines to use the following pattern:
import { } from 'https://www.gstatic.com/firebasejs/11.1.0/firebase-SERVICE.js'
(where SERVICE is an SDK name such as firebase-firestore).

Using browser modules is a quick way to get started, but we recommend using a module bundler for production.

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How do I resolve Firestore initialization errors caused by mismatched Firebase SDK versions in JavaScript?

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