React Native TypeError: Cannot read property 'createClient' of undefined

Question

I am new to React native framework. I have created app using 'create-react-native-app AwesomeProject'. I want to use BLE in my project so i installed the 'react-native-ble-plx' module but when i create the instance of BleManager it throws the error TypeError: Cannot read property 'createClient' of undefined. Why it throwing this error? My App.js is:

import React from "react";
import { StyleSheet, Button, Text, View, Alert } from "react-native";
import { BleManager } from 'react-native-ble-plx';
export default class App extends React.Component {

 constructor() {
    super();
    this.manager = new BleManager();
 }

 TestFunction() {   
    Alert.alert('Button Pressed !!!')   
 }

render() {
  return (
    <View style={styles.container}>
      <Button onPress={ this.TestFunction } title="Learn 
          More"color="#841584" /> 
    </View>
  );
  }
 } 

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

I'm facing the same problem. Please post the answer if you were able to find a solution. Thanks. — Arunprakash
– Arunprakash, Commented May 17, 2019 at 9:04

Anis D · Accepted Answer · 2018-09-12 12:22:36Z

-1

add this.manager = new BleManager(); in componentDidMount()

answered Sep 12, 2018 at 12:22

Anis D

76111 silver badges25 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

pooja Over a year ago

I did this.manager = new BleManager(); in componentDidMount() . But still it throws the error

Maidenone · Accepted Answer · 2019-05-22 09:02:19Z

-1

Inside your project folder, do:

npm install --save react-native-ble-plx
react-native link react-native-ble-plx

Follow the instructions here: https://github.com/Polidea/react-native-ble-plx there is also a example project here: https://github.com/Cierpliwy/SensorTag

answered May 22, 2019 at 9:02

Maidenone

72311 silver badges22 bronze badges

Collectives™ on Stack Overflow

React Native TypeError: Cannot read property 'createClient' of undefined

2 Answers 2

1 Comment

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related