Invariant Violation: "main" has not been registered. This can happen if:

[incredev34]

Description

I have run the react native project for android and got the error on the emulator screen just after opening it.

Invariant Violation: "main" has not been registered. This can happen if:
* Metro (the local dev server) is run from the wrong folder. Check if Metro is running, stop it and restart it in the current project.
* A module failed to load due to an error and `AppRegistry.registerComponent` wasn't called., js engine: hermes

Steps to reproduce

Install application and yarn android.

React Native Version

0.79.5

Affected Platforms

Runtime - Android

Output of npx @react-native-community/cli info

System:
  OS: Windows 11 10.0.26100
  CPU: (20) x64 13th Gen Intel(R) Core(TM) i7-13650HX
  Memory: 18.30 GB / 39.69 GB
Binaries:
  Node:
    version: 22.14.0
    path: C:\nvm4w\nodejs\node.EXE
  Yarn:
    version: 1.22.22
    path: C:\nvm4w\nodejs\yarn.CMD
  npm:
    version: 10.9.2
    path: C:\nvm4w\nodejs\npm.CMD
  Watchman: Not Found
SDKs:
  Android SDK:
    API Levels:
      - "34"
      - "35"
    Build Tools:
      - 34.0.0
      - 34.0.0
      - 34.0.0
      - 34.0.0
      - 35.0.0
      - 35.0.0
      - 35.0.0
      - 35.0.0
      - 35.0.0
      - 35.0.1
      - 36.0.0
    System Images:
      - android-34 | Google APIs Intel x86_64 Atom
      - android-34 | Google Play Intel x86_64 Atom
      - android-35 | Google Play Intel x86_64 Atom
      - android-35 | Pre-Release 16 KB Page Size Google Play Intel x86_64 Atom
      - android-36 | Google APIs Intel x86_64 Atom
      - android-36 | Google Play Intel x86_64 Atom
      - android-36 | Pre-Release 16 KB Page Size Google APIs Intel x86_64 Atom
    Android NDK: Not Found
  Windows SDK: Not Found
IDEs:
  Android Studio: AI-243.24978.46.2431.13363775
  Visual Studio: Not Found
Languages:
  Java:
    version: 17.0.10
    path: /c/Program Files/Java/jdk-17/bin/javac
  Ruby: Not Found
npmPackages:
  "@react-native-community/cli":
    installed: 18.0.0
    wanted: ^18.0.0
  react:
    installed: 19.0.0
    wanted: 19.0.0
  react-native:
    installed: 0.79.5
    wanted: 0.79.5
  react-native-windows: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: false
iOS:
  hermesEnabled: Not found
  newArchEnabled: Not found

info React Native v0.81.1 is now available (your project is running on v0.79.5).
info Changelog: https://github.com/facebook/react-native/releases/tag/v0.81.1
info Diff: https://react-native-community.github.io/upgrade-helper/?from=0.79.5&to=0.81.1
info For more info, check out "https://reactnative.dev/docs/upgrading?os=windows".

Stacktrace or Logs

09-09 19:19:29.561  4602  4779 E ReactNativeJS: ReferenceError: Property 'document' doesn't exist, js engine: hermes
09-09 19:19:29.580  4602  4779 I ReactNativeJS: Running "main" with {"rootTag":11}
09-09 19:19:29.582  4602  4779 E ReactNativeJS: Invariant Violation: "main" has not been registered. This can happen if:
09-09 19:19:29.582  4602  4779 E ReactNativeJS: * Metro (the local dev server) is run from the wrong folder. Check if Metro is running, stop it and restart it in the current project.
09-09 19:19:29.582  4602  4779 E ReactNativeJS: * A module failed to load due to an error and `AppRegistry.registerComponent` wasn't called., js engine: hermes

MANDATORY Reproducer

...

Screenshots and Videos

[react-native-bot]

Warning

Missing reproducer: We could not detect a reproducible example in your issue report. Reproducers are mandatory and we can accept only one of those as a valid reproducer:

• For majority of bugs: send us a Pull Request with the RNTesterPlayground.js edited to reproduce your bug.
• If your bug is UI related: a Snack
• If your bug is build/upgrade related: a project using our Reproducer Template

You can read more about about it on our website: How to report a bug.

[riteshshukla04]

Please help with reproducer . Without that its impossible to help.

Also I can see that ReferenceError: Property 'document' doesn't exist, js engine: hermes . Are you using document inside React native

[incredev34]

Hi @riteshshukla04 Unfortunately, I can't share the whole repository. Which specific file should I share?

[incredev34]

What is the @react-native-firebase/app version which matched with Expo 53.0.0 and React Native 0.79.5

[abisalde]

What is the @react-native-firebase/app version which matched with Expo 53.0.0 and React Native 0.79.5

Are you using Expo with RN CLI? If yes. Change the "main" to your app name inside of your index.js. Also, you self.bridge() where you have the Expo Delegate

[abisalde]

What is the @react-native-firebase/app version which matched with Expo 53.0.0 and React Native 0.79.5

~23.0.1

import Firebase inside of AppDelegate.swift()

[incredev34]

Hi [@abisa], Thanks for reaching out. Here's the build.gradle file. How can I update the Kotlin version?
I've updated the Expo from v51 to v53 and React Native from 0.75.3 to 0.79.5 and I'm using RN CLI with Expo

buildscript {
    ext {
        buildToolsVersion = "34.0.0"
        minSdkVersion = 24
        compileSdkVersion = 34
        targetSdkVersion = 35
        ndkVersion = "28.0.13004108"
        kotlinVersion = "1.9.24"
    }
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath("com.android.tools.build:gradle")
        classpath("com.facebook.react:react-native-gradle-plugin")
        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.24")
        classpath 'com.google.gms:google-services:4.4.2'
    }
}

configurations.all {
    resolutionStrategy.eachDependency { details ->
        if (details.requested.group == "org.jetbrains.kotlin") {
            details.useVersion "1.9.24"
        }
    }
}

apply plugin: "com.facebook.react.rootproject"

[abisalde]

Hi [@abisa], Thanks for reaching out. Here's the build.gradle file. How can I update the Kotlin version? I've updated the Expo from v51 to v53 and React Native from 0.75.3 to 0.79.5 and I'm using RN CLI with Expo

buildscript {
    ext {
        buildToolsVersion = "34.0.0"
        minSdkVersion = 24
        compileSdkVersion = 34
        targetSdkVersion = 35
        ndkVersion = "28.0.13004108"
        kotlinVersion = "1.9.24"
    }
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath("com.android.tools.build:gradle")
        classpath("com.facebook.react:react-native-gradle-plugin")
        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.24")
        classpath 'com.google.gms:google-services:4.4.2'
    }
}

configurations.all {
    resolutionStrategy.eachDependency { details ->
        if (details.requested.group == "org.jetbrains.kotlin") {
            details.useVersion "1.9.24"
        }
    }
}

apply plugin: "com.facebook.react.rootproject"

    buildToolsVersion = "35.0.0"
    minSdkVersion = 24
    compileSdkVersion = 35
    targetSdkVersion = 35
    ndkVersion = "27.1.12297006"

Change the version to 2.0.21 and remove the below

- configurations.all {
-     resolutionStrategy.eachDependency { details ->
-         if (details.requested.group == "org.jetbrains.kotlin") {
-             details.useVersion "1.9.24"
-         }
-     }
- }

apply plugin: "expo-root-project"
apply plugin: "com.facebook.react.rootproject"

[Thotaharshavardhani]

React Native team is currently focusing support on the New Architecture — issues on the old arch are not being actively investigated.