Unable to resolve module react-native/Libraries/EventEmitter/EventEmitter

[lovince]

Issue

Updated my project to RN 0.48.1 and React 16.0.0-alpha.12. The project compiles properly and but now getting red screen of death in the iOS Simulator - both from Xcode and with RN CLI - with the following error message:

Bundling index.ios.js [development, non-minified, hmr disabled] 98.5% (766/772), failed.
error: bundling failed: "Unable to resolve module react-native/Libraries/EventEmitter/EventEmitter from /Volumes/VLO/apps/focoapp/app/node_modules/react-native-firebase/lib/modules/base.js: Module does not exist in the module map

This might be related to facebook/react-native#4968
To resolve try the following:

1. Clear watchman watches: watchman watch-del-all.
2. Delete the node_modules folder: rm -rf node_modules && npm install.
3. Reset packager cache: rm -fr $TMPDIR/react-* or npm start -- --reset-cache."

Environment

1. Application Target Platform: iOS
2. Development Operating System: El Capitan v10.11.6
3. Build Tools: Xcode 8.2.1
4. React Native version: 0.48.1
5. RNFirebase Version: 2.1.4
6. Firebase Module: Database, Auth, Storage, Crash, RemoteConfig

[lovince]

Looks like EventEmitter.js was removed from the EventEmitter library as of RN 0.48.

This seems to be the fix - in react-native-firebase/lib/modules/base.js change

import EventEmitter from 'react-native/Libraries/EventEmitter/EventEmitter';

to

import EventEmitter from 'react-native/Libraries/vendor/emitter/EventEmitter';

[Ehesp]

Yeah very annoying! That fix will work as a temp workaround in v2 however we can't apply that as it wont be backwards compatible. v3 addresses this when it's released!

[jerolimov]

Can you release a 2.2 branch for RN 0.48+? :)

@lovince solution works fine. I created a PR #387 for that. You can install this manually by installing this branch:

yarn upgrade 'react-native-firebase@jerolimov/react-native-firebase#eb2ec4b0471865f151b7d32cc0bd7ffe8b314485'

[fungilation]

I'm reproducing the same error on bundling/running on simulator. Since RN upgrade to 0.48.1

[fungilation]

I'm not seeing this with @jerolimov's PR, but I'm only testing on iOS.

[Ehesp]

@Salakar What do you want to do about this?

@SoldierCorp This is a different issue, there's plenty of these in the issues.

[fungilation]

+1 to 2.2 branch for RN 0.48+

[lovince]

+1

[Salakar]

Will release a version in the next hour or so with this patched to support 48 and previous versions, the PR above would break <48

[Salakar]

v2.2.0 is up.

[AlexanderYao]

i did yarn upgrade, and made react-native-root-siblings upgrade from 1.2.1 to 1.3.0, and the error raised. then i delete yarn.lock, and did yarn install, and the error gone.

yarn add react-native-root-toast to upgrade it from 1.1.2 to 2.2.0 also fix the error

[cs-manughian]

@sameesiddiqui @jerolimov @lovince I am still getting this error with the fix in.

This is the error:

ERROR in ./node_modules/@react-native-firebase/app/lib/internal/SharedEventEmitter.js:18
Module not found: Can't resolve 'react-native/Libraries/vendor/emitter/EventEmitter'
  16 |  */
  17 |
> 18 | import EventEmitter from 'react-native/Libraries/vendor/emitter/EventEmitter';
  19 |
  20 | export default new EventEmitter();

Does anyone know a solution? I can't get the application running using expo start --web

  "dependencies": {
    "@react-native-firebase/app": "^18.6.2",
    "@react-native-firebase/auth": "^18.6.2",
    "@react-native-firebase/firestore": "^18.6.2",
    "chess.js": "^1.0.0-beta.6",
    "expo": "~49.0.13",
    "expo-build-properties": "~0.8.3",
    "expo-status-bar": "~1.6.0",
    "expo-updates": "^0.18.17",
    "react": "18.2.0",
    "react-native": "^0.72.6"
  },
  "devDependencies": {
    "@babel/core": "^7.20.0",
    "@expo/webpack-config": "^19.0.0",
    "@types/react": "~18.2.14",
    "expo-env-info": "^1.0.5",
    "react-dom": "^18.2.0",
    "react-native-web": "^0.19.9",
    "typescript": "^5.1.3"
  },

I found this thread on Reddit -- is this true? Didn't see it in the docs that it doesn't work with expo web emulator
https://www.reddit.com/r/expo/comments/16illkb/does_expo_web_just_not_work_with_firebase/

[mikehardy]

I have no idea how react-native-firebase (heavy emphasis on the native) would work on the web. We have plans to bridge the APIs such that it works on react-native-web (the underlying technology of Expo Web...) by delegating to the firebase-js-sdk in that case but no work has begun there. It is not going to work. You must do native builds and run on either android or ios as far as I know