Android app crashes in production but not during dev mode

[myt-sheila]

Current behaviour

The app crashes as soon as I triggered the button to open the DatePickerModal in production, but works fine in expo during development.

I have this in App.js

import { enGB, registerTranslation } from "react-native-paper-dates";
registerTranslation("en", enGB);

And used the modal somewhere like this:

 <DatePickerModal
      locale="en"
      mode="range"
      visible={open}
      onDismiss={onDismiss}
      startDate={range.startDate}
      endDate={range.endDate}
      onConfirm={onConfirm}
/>

Expected behaviour

I expected to see the modal exactly like the one I saw during dev mode.

Your Environment

software	version
ios	x
android	x
react-native	0.69.6
react-native-paper	x.x.x
node	x.x.x
npm or yarn	x.x.x
expo sdk	46.0.0

[iM-GeeKy]

Hi @myt-sheila, this is tough to pin down exactly without having a stack trace or error to help better determine what the exact issue is. A few things to try...

• Enable hermes if you haven't done so, this way you won't need to add polyfills
• If you don't have hermes enabled you will need to add polyfills (see https://web-ridge.github.io/react-native-paper-dates/docs/intro#android-caveats).
• Consider adding sentry or something of the like, so that you can attempt to get a stack trace of the issue.

[github-actions[bot]]

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[github-actions[bot]]

Hey! Thanks for opening the issue. Can you provide a minimal repro which demonstrates the issue? Posting a snippet of your code in the issue is useful, but it's not usually straightforward to run. A repro will help us debug the issue faster. Please try to keep the repro as small as possible. The easiest way to provide a repro is on snack.expo.dev. If it's not possible to repro it on snack.expo.dev, then you can also provide the repro in a GitHub repository.

[myt-sheila]

The app works fine now after enabling hermes. In my app.json, I specified the values of jsEngine:

    "jsEngine": "hermes", 
    "ios": {
      ...
      "jsEngine": "hermes"
    },
    "android": {
      ....
      "jsEngine": "hermes"
    }, 

Thank you @iM-GeeKy!