fileAsyncTransport Error when using it from separate local package

[partho-maple]

I have created a separate React Native local package, where i put all of my logging related code. Then using this Logger package in the main app. But when i use fileAsyncTransport, i get the a crash with following error,

ERROR : Invariant Violation: `new NativeEventEmitter()` requires a non-null argument., js engine: hermes 

The error message is itself doesn't give much information regarding where to look at and what's wrong. But consoleTransport works perfectly

Following if my code,

import { consoleTransport, logger, fileAsyncTransport } from 'react-native-logs';
import RNFS from "react-native-fs";
import * as FileSystem from 'expo-file-system';


const defaultConfig = {
    levels: {
        debug: 0,
        info: 1,
        warn: 2,
        error: 3,
    },
    severity: __DEV__ ? 'debug' : 'warn',
    transport: fileAsyncTransport,
    // transport: consoleTransport,
    transportOptions: {
        colors: {
            debug: 'green',
            info: 'blueBright',
            warn: 'yellowBright',
            error: 'redBright',
        },
        FS: RNFS,
        // FS: FileSystem,
        fileName: `FeniksLog_{date-today}.txt`,
    },
    async: true,
    dateFormat: 'utc',
    printLevel: true,
    printDate: true,
    fixedExtLvlLength: false,
    enabled: true,
};

const Logger: ReturnType<typeof logger.createLogger> = logger.createLogger(defaultConfig);
Logger.patchConsole();
export { Logger };

Are there any special configuration needed in order to use fileAsyncTransport from a separate local package?

[alessandro-bottamedi]

You need to install RNFS correctly, and it must be properly linked in your React Native app. I believe the issue lies there...