undefined is not an object (evaluating 'ExponentNotifications.getExponentPushTokenAsync')

I have a problem (error message in title) when trying to run my expo (v42.0.0) project on a Genymotion-emulated Android Nexus 5. It seems to be caused by Notifications being imported by registerRootComponent.js, and more specifically by line 132 in Notifications.js:

// ...

import { DeviceEventEmitter, NativeModules, Platform } from 'react-native';
const { ExponentNotifications } = NativeModules;

// ...

export default {

  // ...

  // This line causes the error because ExponentNotifications is undefined.
  getExponentPushTokenAsync: ExponentNotifications.getExponentPushTokenAsync,

  // ...

}

The full error message is as follows:

undefined is not an object (evaluating 'ExponentNotifications.getExponentPushTokenAsync')
<unknown>
    Notifications.js:132:51
loadModuleImplementation
    require.js:174:12
guardedLoadModule
    require.js:126:36
_require
    require.js:110:24
<unknown>
    registerRootComponent.js:8
loadModuleImplementation
    require.js:174:12
guardedLoadModule
    require.js:126:36
_require
    require.js:110:24
registerRootComponent
    Expo.js:58:19
<unknown>
    crna-entry.js:61:15
loadModuleImplementation
    require.js:174:12
guardedLoadModule
    require.js:119:45
_require
    require.js:110:24
global code

PS

It works fine on iPhone.

[thomashagstrom]

This occurs on a new project as @ziudeso said, when running on Android simuator. If later versions are required @CvBlixen ; of what packages? It’s high risk of incompatibility to just upgrade all packages.

[CvBlixen]

I went through my package.json and pushed everything to later versions … and now it works.

I should have done that from the start. Sorry.