Cannot read property 'start' of undefined

[sitannsu]

await BackgroundService.start(veryIntensiveTask, options);  it throws  Cannot read property 'start' of undefined 

[Omare123]

I've been fighting this all day too.

`import { StatusBar } from 'expo-status-bar';
import { Platform, StyleSheet, Text, View } from 'react-native';
import { Header } from './src/Components/Header';
import { useEffect, useState, useRef} from 'react';
import React from 'react';
import { PomodoroContainer } from './src/Components/PomodoroContainer';
import { PomodoroButton } from './src/Components/PomodoroButton';
import { Timer } from './src/Components/Timer';
import * as Notifications from 'expo-notifications';
import * as Device from 'expo-device';
import BackgroundService from 'react-native-background-actions';

const FOCUS_TIME_MINUTES = 0.1 * 60 * 1000;
const BREAK_TIME_MINUTES = 0.05 * 60 * 1000;
const LONG_BREAK_TIME_MINUTES = 0.1 * 60 * 1000;
const BREAK_TIMES = 3;
const FOCUS = "Focus";
const BREAK = "Break"

const sleep = (time) => new Promise((resolve) => setTimeout(() => resolve(null), time));

const veryIntensiveTask = async (taskDataArguments) => {
// Example of an infinite loop task
const { delay } = taskDataArguments;
await new Promise(async (resolve) => {
for (let i = 0; BackgroundService.isRunning(); i++) {
console.log(i);
await BackgroundService.updateNotification({taskDesc: Running...${i}});
await sleep(delay);
}
});
};

const options = {
taskName: 'Example',
taskTitle: 'ExampleTask title',
taskDesc: 'ExampleTask description',
taskIcon: {
name: 'ic_launcher',
type: 'mipmap',
},
color: '#ff00ff',
linkingURI: 'pomodoro://chat/jane', // See Deep Linking for more info
parameters: {
delay: 1000,
},
};
export default function App() {
const [timerCount, setTimerCount] = useState(FOCUS_TIME_MINUTES);
const [timerIntervalId, setTimerIntervalId] = useState<NodeJS.Timeout | null>(null);
const [breakTimerCount, setBreakTimerCount] = useState(BREAK_TIMES);
const [timerMode, setTimerMode] = useState<"Focus" | "Break">(FOCUS);
const timerDate = new Date(timerCount);

const startBackgroundService = async () => {
await BackgroundService.start(veryIntensiveTask, options);
await BackgroundService.updateNotification({taskDesc: 'Running...'});
}
const stopBackgroundService = async () => {
await BackgroundService.stop();
}
const startTimer = async () =>{
let id = setInterval(() => setTimerCount(prev => prev - 1000), 1000);
setTimerIntervalId(id);
}

function stopTimer(){
if(timerIntervalId !== null){
clearInterval(timerIntervalId);
setTimerIntervalId(null);
}
}

function resetTimer(){
if(timerIntervalId !== null){
stopTimer();
}
setTimerCount(FOCUS_TIME_MINUTES);
setTimerMode(FOCUS);
}

return (


{timerMode === FOCUS ? "Time to focus!" : "Time for a break!"}
<PomodoroButton action={!timerIntervalId ? startBackgroundService : stopBackgroundService} color={'#b4a12d'} text={!timerIntervalId ? 'Start' : 'Stop'}/>
<PomodoroButton action={resetTimer} color={'#4c5a23'} text={'Reset'}/>

);
}

const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: '#fff',
flexDirection: 'column',
alignContent: 'center',
alignItems: 'center',
justifyContent: 'center',
minHeight: '10%',
width: '100%'
}
});
`

[mr2726]

Did you find a solution?

[MarkNaArea]

PR #208 worked for me