I have a problem using firebase with expo. I added the config and tried to add some content to Auth firebase.

I added my firebase.js file like this:

I wanted to make a function in my LogIn.js file like this:

handleRegister is the function that I use for onPress function of Register button

After all this I get the following:

CodePudding user response：

When you use getAuth() directly in your components, there is no surety that Firebase was initialized in firebase.js. Instead you should always ensure initializeApp() is called before using any Firebase services. Here, you can import the auth instance created in firebase.js as shown below:

// firebase.js

const app = initializeApp(firebaseConfig);

// add export 
export const auth = getAuth();
export const analytics = getAnalytics();

// Login.js


import { auth } from '../path/to/firebase.js' // <-- replace with correct path


// Remove the following
// const auth = getAuth();


// use imported 'auth'
createUserWithEmailAndPassword(auth, email, password);