I'm trying to set data to my realtime database on firebase. I have used the following code. I am passing my database name as well as the region in my url still getting this error. Is there anyone who know's what is wrong with the code.

Error "firebase.database(app) arg expects a FirebaseApp instance or undefined.Ensure the arg provided is a Firebase app instance; or no args to use the default Firebase app." I have also initialised the firebase config.

Also I am getting the same problem while fetching data.

import {EMPLOYEE_UPDATE,EMPLOYEE_CREATE,} from './types';

import database from '@react-native-firebase/database';

import auth from '@react-native-firebase/auth';

import { firebase } from '@react-native-firebase/app';

import { Actions } from 'react-native-router-flux';


export const employeeUpdate = ({prop,value}) => {

    return {

        type: EMPLOYEE_UPDATE,

        payload: {prop,value},

    };

};



export const employeeCreate = ({name,phone,shift}) => {

    const {currentUser} = auth();

    return (dispatch) =>{

        *const ref = database(

          'https://managerproject-8924c-default-rtdb.asia-southeast1.firebasedatabase.app/')

        .ref(`/users/${currentUser.uid}/employees`);

        console.log(ref);

        ref.set({name,phone,shift})

        .then(()=> {*

            console.log('Data set.');

            dispatch({type: EMPLOYEE_CREATE });

            Actions.employeeList({type: 'reset'});

        });

    };

};