TypeError:undefined is not an object(evaluating app.options[DATABASE_URL_OPTION])

[Utkarsh0911]

import React from 'react'; import { StyleSheet, Text, View } from 'react-native'; import { TextInput } from 'react-native-paper';

import { Button } from 'react-native-paper';

import * as firebase from 'firebase'

if(!firebase.apps.length) { firebase.initializeApp({

apiKey: "AIzaSyBhubAskVqctSJBd75pwZ4u0F7RDfgHro8",
authDomain: "fir-rn-b2fe7.firebaseapp.com",
databaseURL: "https://fir-rn-b2fe7.firebaseio.com",
projectId: "fir-rn-b2fe7",
storageBucket: "fir-rn-b2fe7.appspot.com",
messagingSenderId: "170277258199",
appId: "1:170277258199:web:cfa91284465dd9772d4192",
measurementId: "G-KP2Z2ZC9ZW"

}) } export default function App() {

console.log("hello") state={ text:'' } return (

this.setState({ text })} /> { const myitems=firebase.database().ref("items") myitems.on("value",datasnap=>{ console.log(datasnap.val()) }) }}> Press me

); }

const styles = StyleSheet.create({ container: { flex: 1, backgroundColor: '#fff', alignItems: 'center', justifyContent: 'center', }, });

[google-oss-bot]

I found a few problems with this issue:

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[Feiyang1]

Your initialization code and the config file look fine to me, but I'm not sure if that is the problem you are referring to because you just pasted code without any instruction. For us to help you debug, can you please provides more detail, e.g. where the error occurs in your code, what you are trying to do before the error occurs ,etc..

[google-oss-bot]

Hey @utkarsh0911. We need more information to resolve this issue but there hasn't been an update in 5 weekdays. I'm marking the issue as stale and if there are no new updates in the next 5 days I will close it automatically.

If you have more information that will help us get to the bottom of this, just add a comment!

[google-oss-bot]

Hey @utkarsh0911. We need more information to resolve this issue but there hasn't been an update in 5 weekdays. I'm marking the issue as stale and if there are no new updates in the next 5 days I will close it automatically.

If you have more information that will help us get to the bottom of this, just add a comment!

[google-oss-bot]

Since there haven't been any recent updates here, I am going to close this issue.

@utkarsh0911 if you're still experiencing this problem and want to continue the discussion just leave a comment here and we are happy to re-open this.