I have one legacy application in which I have to use translation. for that I am installing below dependency.

"i18next": "^21.6.3", "react-i18next": "^9.0.10",

i18n.js

import i18n from 'i18next';
import { reactI18nextModule } from 'react-i18next';

import translationEN from '../public/locales/en/translation.json';

// the translations
const resources = {
  en: {
    translation: translationEN,
  },
};

i18n
  .use(reactI18nextModule) // passes i18n down to react-i18next
  .init({
    resources,
    lng: 'en',

    keySeparator: false, // we do not use keys in form messages.welcome

    interpolation: {
      escapeValue: false, // react already safes from xss
    },
  });

export default i18n;

I am not doing anything yet but just importing this file in my class component and it started giving below error. I am not sure what mistake I am doing.