React Native Firebase TypeError when importing

I am developing an Android and IOS mobile app using React Native. I want to use Firebase for my database but when I install npm install --save firebase and then I import firebase from 'firebase'.

I would get this error saying

"TypeError: undefined is not a function(evaluating '_iteratortypeof
Symbol === "function" ? Symbol.iterator: "@@iterator"')"

This is the screenshot of my output

enter image description here

I want to create a login screen for my app with a database. Any other suggestion can help if using Firebase for my mobile app.

This is my coding if it helps.

import React from 'react';

import {

View,

Text,

StyleSheet,

Platform,

TextInput,

TouchableOpacity,

} from 'react-native';

import firebase from 'firebase';





export default class Login extends React.Component {



constructor(props) {

    super(props);

}

state = {

    email: "Enter email",

 password: "Enter password"

};











render() {

    return (

        <View style={styles.container}>

            <View style={styles.textContainer}>

                <Text style={styles.text}>Create an account below</Text>

                <TextInput

                    style={styles.textInput}

                    onChangeText={(text) => this.setState({ email: text })}

                    value={this.state.email}

                />

                <TextInput

                    style={styles.textInput}

                    onChangeText={(text) => this.setState({ password: text })}

                    value={this.state.password}

                />

                <TouchableOpacity



                >

                    <View>

                        <Text>Log In Existing</Text>

                    </View>

                </TouchableOpacity>



                <TouchableOpacity



                >

                    <View>

                        <Text>Create New User</Text>

                    </View>

                </TouchableOpacity>

            </View>

        </View>

    );

}}

edited Nov 23 '18 at 3:06

asked Nov 23 '18 at 1:40

khai khai

154

Outra here the content oficial your file that have the import...

– Sergio Clemente
Nov 23 '18 at 2:21

add a comment |

I am developing an Android and IOS mobile app using React Native. I want to use Firebase for my database but when I install npm install --save firebase and then I import firebase from 'firebase'.

I would get this error saying

"TypeError: undefined is not a function(evaluating '_iteratortypeof
Symbol === "function" ? Symbol.iterator: "@@iterator"')"

This is the screenshot of my output

enter image description here

I want to create a login screen for my app with a database. Any other suggestion can help if using Firebase for my mobile app.

This is my coding if it helps.

import React from 'react';

import {

View,

Text,

StyleSheet,

Platform,

TextInput,

TouchableOpacity,

} from 'react-native';

import firebase from 'firebase';





export default class Login extends React.Component {



constructor(props) {

    super(props);

}

state = {

    email: "Enter email",

 password: "Enter password"

};











render() {

    return (

        <View style={styles.container}>

            <View style={styles.textContainer}>

                <Text style={styles.text}>Create an account below</Text>

                <TextInput

                    style={styles.textInput}

                    onChangeText={(text) => this.setState({ email: text })}

                    value={this.state.email}

                />

                <TextInput

                    style={styles.textInput}

                    onChangeText={(text) => this.setState({ password: text })}

                    value={this.state.password}

                />

                <TouchableOpacity



                >

                    <View>

                        <Text>Log In Existing</Text>

                    </View>

                </TouchableOpacity>



                <TouchableOpacity



                >

                    <View>

                        <Text>Create New User</Text>

                    </View>

                </TouchableOpacity>

            </View>

        </View>

    );

}}

edited Nov 23 '18 at 3:06

asked Nov 23 '18 at 1:40

khai khai

154

Outra here the content oficial your file that have the import...

– Sergio Clemente
Nov 23 '18 at 2:21

add a comment |

I am developing an Android and IOS mobile app using React Native. I want to use Firebase for my database but when I install npm install --save firebase and then I import firebase from 'firebase'.

I would get this error saying

"TypeError: undefined is not a function(evaluating '_iteratortypeof
Symbol === "function" ? Symbol.iterator: "@@iterator"')"

This is the screenshot of my output

enter image description here

I want to create a login screen for my app with a database. Any other suggestion can help if using Firebase for my mobile app.

This is my coding if it helps.

import React from 'react';

import {

View,

Text,

StyleSheet,

Platform,

TextInput,

TouchableOpacity,

} from 'react-native';

import firebase from 'firebase';





export default class Login extends React.Component {



constructor(props) {

    super(props);

}

state = {

    email: "Enter email",

 password: "Enter password"

};











render() {

    return (

        <View style={styles.container}>

            <View style={styles.textContainer}>

                <Text style={styles.text}>Create an account below</Text>

                <TextInput

                    style={styles.textInput}

                    onChangeText={(text) => this.setState({ email: text })}

                    value={this.state.email}

                />

                <TextInput

                    style={styles.textInput}

                    onChangeText={(text) => this.setState({ password: text })}

                    value={this.state.password}

                />

                <TouchableOpacity



                >

                    <View>

                        <Text>Log In Existing</Text>

                    </View>

                </TouchableOpacity>



                <TouchableOpacity



                >

                    <View>

                        <Text>Create New User</Text>

                    </View>

                </TouchableOpacity>

            </View>

        </View>

    );

}}

edited Nov 23 '18 at 3:06

asked Nov 23 '18 at 1:40

khai khai

154

I am developing an Android and IOS mobile app using React Native. I want to use Firebase for my database but when I install npm install --save firebase and then I import firebase from 'firebase'.

I would get this error saying

"TypeError: undefined is not a function(evaluating '_iteratortypeof
Symbol === "function" ? Symbol.iterator: "@@iterator"')"

This is the screenshot of my output

enter image description here

I want to create a login screen for my app with a database. Any other suggestion can help if using Firebase for my mobile app.

This is my coding if it helps.

import React from 'react';

import {

View,

Text,

StyleSheet,

Platform,

TextInput,

TouchableOpacity,

} from 'react-native';

import firebase from 'firebase';





export default class Login extends React.Component {



constructor(props) {

    super(props);

}

state = {

    email: "Enter email",

 password: "Enter password"

};











render() {

    return (

        <View style={styles.container}>

            <View style={styles.textContainer}>

                <Text style={styles.text}>Create an account below</Text>

                <TextInput

                    style={styles.textInput}

                    onChangeText={(text) => this.setState({ email: text })}

                    value={this.state.email}

                />

                <TextInput

                    style={styles.textInput}

                    onChangeText={(text) => this.setState({ password: text })}

                    value={this.state.password}

                />

                <TouchableOpacity



                >

                    <View>

                        <Text>Log In Existing</Text>

                    </View>

                </TouchableOpacity>



                <TouchableOpacity



                >

                    <View>

                        <Text>Create New User</Text>

                    </View>

                </TouchableOpacity>

            </View>

        </View>

    );

}}

firebase react-native

edited Nov 23 '18 at 3:06

asked Nov 23 '18 at 1:40

khai khai

154

edited Nov 23 '18 at 3:06

asked Nov 23 '18 at 1:40

khai khai

154

edited Nov 23 '18 at 3:06

asked Nov 23 '18 at 1:40

khai khai

154

asked Nov 23 '18 at 1:40

khai khai

154

asked Nov 23 '18 at 1:40

khai khai

154

Outra here the content oficial your file that have the import...

– Sergio Clemente
Nov 23 '18 at 2:21

add a comment |

Outra here the content oficial your file that have the import...

– Sergio Clemente
Nov 23 '18 at 2:21

Outra here the content oficial your file that have the import...

– Sergio Clemente
Nov 23 '18 at 2:21

add a comment |

1 Answer
1

active

oldest

votes

which babel version is used for compilation? all the babel plugin and preset should match of babel version.
Please check the babel version and presets.

answered Nov 23 '18 at 3:13

Sabin Maharjan

How do I check the babel plugin and preset version?

– khai khai
Nov 23 '18 at 4:28

please check in package.json file

– Sabin Maharjan
Nov 23 '18 at 7:06

Im using this "dependencies": { "firebase": "^5.5.9", "react": "16.6.0-alpha.8af6728", "react-native": "0.57.3", }, "devDependencies": { "babel-jest": "23.6.0", "jest": "23.6.0", "metro-react-native-babel-preset": "0.48.1", "react-test-renderer": "16.6.0-alpha.8af6728"

– khai khai
Nov 23 '18 at 8:01

you have to require core-js. you can find the solution here

– Sabin Maharjan
Nov 23 '18 at 10:01

add a comment |

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1 Answer
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active

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1 Answer
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active

oldest

votes

which babel version is used for compilation? all the babel plugin and preset should match of babel version.
Please check the babel version and presets.

answered Nov 23 '18 at 3:13

Sabin Maharjan

How do I check the babel plugin and preset version?

– khai khai
Nov 23 '18 at 4:28

please check in package.json file

– Sabin Maharjan
Nov 23 '18 at 7:06

Im using this "dependencies": { "firebase": "^5.5.9", "react": "16.6.0-alpha.8af6728", "react-native": "0.57.3", }, "devDependencies": { "babel-jest": "23.6.0", "jest": "23.6.0", "metro-react-native-babel-preset": "0.48.1", "react-test-renderer": "16.6.0-alpha.8af6728"

– khai khai
Nov 23 '18 at 8:01

you have to require core-js. you can find the solution here

– Sabin Maharjan
Nov 23 '18 at 10:01

add a comment |

which babel version is used for compilation? all the babel plugin and preset should match of babel version.
Please check the babel version and presets.

answered Nov 23 '18 at 3:13

Sabin Maharjan

How do I check the babel plugin and preset version?

– khai khai
Nov 23 '18 at 4:28

please check in package.json file

– Sabin Maharjan
Nov 23 '18 at 7:06

Im using this "dependencies": { "firebase": "^5.5.9", "react": "16.6.0-alpha.8af6728", "react-native": "0.57.3", }, "devDependencies": { "babel-jest": "23.6.0", "jest": "23.6.0", "metro-react-native-babel-preset": "0.48.1", "react-test-renderer": "16.6.0-alpha.8af6728"

– khai khai
Nov 23 '18 at 8:01

you have to require core-js. you can find the solution here

– Sabin Maharjan
Nov 23 '18 at 10:01

add a comment |

which babel version is used for compilation? all the babel plugin and preset should match of babel version.
Please check the babel version and presets.

answered Nov 23 '18 at 3:13

Sabin Maharjan

which babel version is used for compilation? all the babel plugin and preset should match of babel version.
Please check the babel version and presets.

answered Nov 23 '18 at 3:13

Sabin Maharjan

answered Nov 23 '18 at 3:13

Sabin Maharjan

answered Nov 23 '18 at 3:13

Sabin Maharjan

answered Nov 23 '18 at 3:13

Sabin Maharjan

How do I check the babel plugin and preset version?

– khai khai
Nov 23 '18 at 4:28

please check in package.json file

– Sabin Maharjan
Nov 23 '18 at 7:06

Im using this "dependencies": { "firebase": "^5.5.9", "react": "16.6.0-alpha.8af6728", "react-native": "0.57.3", }, "devDependencies": { "babel-jest": "23.6.0", "jest": "23.6.0", "metro-react-native-babel-preset": "0.48.1", "react-test-renderer": "16.6.0-alpha.8af6728"

– khai khai
Nov 23 '18 at 8:01

you have to require core-js. you can find the solution here

– Sabin Maharjan
Nov 23 '18 at 10:01

add a comment |

How do I check the babel plugin and preset version?

– khai khai
Nov 23 '18 at 4:28

please check in package.json file

– Sabin Maharjan
Nov 23 '18 at 7:06

Im using this "dependencies": { "firebase": "^5.5.9", "react": "16.6.0-alpha.8af6728", "react-native": "0.57.3", }, "devDependencies": { "babel-jest": "23.6.0", "jest": "23.6.0", "metro-react-native-babel-preset": "0.48.1", "react-test-renderer": "16.6.0-alpha.8af6728"

– khai khai
Nov 23 '18 at 8:01

you have to require core-js. you can find the solution here

– Sabin Maharjan
Nov 23 '18 at 10:01

How do I check the babel plugin and preset version?

– khai khai
Nov 23 '18 at 4:28

please check in package.json file

– Sabin Maharjan
Nov 23 '18 at 7:06

Im using this "dependencies": { "firebase": "^5.5.9", "react": "16.6.0-alpha.8af6728", "react-native": "0.57.3", }, "devDependencies": { "babel-jest": "23.6.0", "jest": "23.6.0", "metro-react-native-babel-preset": "0.48.1", "react-test-renderer": "16.6.0-alpha.8af6728"

– khai khai
Nov 23 '18 at 8:01

you have to require core-js. you can find the solution here

– Sabin Maharjan
Nov 23 '18 at 10:01

add a comment |

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