Notifications.requestPermissionsAsync() is undefined on mobile devices.

SDK Version: 5.3.0
Platforms(Android/iOS/web/all): Android, iOS, web

I’m new to notifications with Expo so forgive me if I’ve overlooked a simple solution. I’m trying to get the code from the documentation to work: Push Notifications Overview - Expo Documentation. In Chrome, there aren’t any problems, but on mobile (both Android and iOs), Notifications is an empty object, so I can’t use Notifications.requestPermissionsAsync().

Any help would be greatly appreciated.

This is the code I’m trying to debug

import * as Device from "expo-device";
import * as Notifications from "expo-notifications";
import React, { useEffect } from "react";
import { Text, View } from "react-native";

export default function App() {
  async function registerForPushNotificationsAsync() {
    if (!Device.isDevice) {
      alert("Must use a physical device for push notifications");
      return null;


    try {
        .then((res) => {
          const status = res.status;
          if (status !== "granted") {
            alert("failed to get push token");
            return null;
        .catch((err) => console.log("err", err));
    } catch (err) {

  useEffect(() => {
  }, []);

  return (
        flex: 1,
        alignItems: "center",
        justifyContent: "space-around",

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