"ReferenceError: Property '__scanOCR' doesn't exist, js engine: hermes" when using expo dev build.

I have been trying to create an OCR app using React Native and Expo. However, I have encountered an issue where I cannot use the OCR package when using the Expo development client. I am utilizing react-native-vision-camera along with vision-camera-ocr to detect text.

import React, { useEffect, useState } from 'react';
import { View, Text, StyleSheet, ActivityIndicator, SafeAreaView } from 'react-native';
import { useCameraDevices, useFrameProcessor, Camera } from 'react-native-vision-camera';
import 'react-native-reanimated';
import { scanOCR } from 'vision-camera-ocr';
import { runOnJS } from 'react-native-reanimated';

const TextScanner = () => {
  const [text, setText] = useState(null)
  const devices = useCameraDevices();
  const cameraDevice = devices.back;

  const frameProcessor = useFrameProcessor((frame) => {
    const scannedOcr = scanOCR(frame);
  }, []);

  if (cameraDevice == null) {
    return <ActivityIndicator size="large" color="green" />;
  } else {
    return (
        <View styles={styles.textContainer}>
          <Text style={styles.text}>{text}</Text>

export default TextScanner;

const styles = StyleSheet.create({
  textContainer: {
    position: 'absolute',
    bottom: 100,
    height: 100,
    width: 400,
    backgroundColor: 'white',
    zIndex: 1
  text: {
    fontSize: 50
  camera: {
    height: '80%',
    width: '100%',
    zIndex: 0

Everything works fine when I build a standalone APK using EAS, but I face an error when attempting to run the app using the development client. I suspect this issue is related to the configuration of babel.config.js. I researched the problem, and it seems that some people forgot to include the following configuration in their babel.config.js:

module.exports = {
  plugins: [
        globals: ['__scanOCR'],

However, I have already included this configuration correctly in my babel.config.js. My question is whether there is a solution to make __scanOCR work in the Expo development client. Alternatively, is there another OCR plugin available for React Native using Expo that doesn’t require an internet connection? I’m aiming to implement a popup that displays the recognized text with specific functionality, and having the ability to update the code quickly without using EAS would be very beneficial.

I am using a managed workflow, my eas-cli verion is 3.17.1. I have tried a bunch of things including reformating the babel.config.js to use commonJs, clearing my cache (multiple times) and using a standalone build to no avail. Any and all help would be appreciated, have been trying to fix this for days now and none of the solutions I found online worked.