[🐛] Metro error: No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()

[furkananter]

Hi, I am getting this error while trying to eas build (production) and Xcode Archive.

Development Build has no issues. Everything looks like it was expected.

Metro error: No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()
  Error: No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()
    at call (/Users/expo/workingdir/build/node_modules/@react-native-firebase/app/lib/internal/registry/app.js:96:11)
    at getApp (/Users/expo/workingdir/build/node_modules/@react-native-firebase/app/lib/modular/index.js:75:23)
    at getAuth (/Users/expo/workingdir/build/node_modules/@react-native-firebase/auth/lib/modular/index.js:52:16)
    at factory (/Users/expo/workingdir/build/context/FirebaseProvider.tsx:31:21)
    at loadModuleImplementation (/Users/expo/workingdir/build/node_modules/metro-runtime/src/polyfills/require.js:277:5)
    at guardedLoadModule (/Users/expo/workingdir/build/node_modules/metro-runtime/src/polyfills/require.js:184:12)
    at require (/Users/expo/workingdir/build/node_modules/metro-runtime/src/polyfills/require.js:92:7)
    at factory (/Users/expo/workingdir/build/app/(auth)/(tabs)/_layout.tsx:13:1)
    at loadModuleImplementation (/Users/expo/workingdir/build/node_modules/metro-runtime/src/polyfills/require.js:277:5)
    at guardedLoadModule (/Users/expo/workingdir/build/node_modules/metro-runtime/src/polyfills/require.js:177:21)
No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()
Error: No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()
Error: No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()
    at call (/Users/expo/workingdir/build/node_modules/@react-native-firebase/app/lib/internal/registry/app.js:96:11)
    at getApp (/Users/expo/workingdir/build/node_modules/@react-native-firebase/app/lib/modular/index.js:75:23)
    at getAuth (/Users/expo/workingdir/build/node_modules/@react-native-firebase/auth/lib/modular/index.js:52:16)
    at factory (/Users/expo/workingdir/build/context/FirebaseProvider.tsx:31:21)
    at loadModuleImplementation (/Users/expo/workingdir/build/node_modules/metro-runtime/src/polyfills/require.js:277:5)
    at guardedLoadModule (/Users/expo/workingdir/build/node_modules/metro-runtime/src/polyfills/require.js:184:12)
    at require (/Users/expo/workingdir/build/node_modules/metro-runtime/src/polyfills/require.js:92:7)
    at factory (/Users/expo/workingdir/build/app/(auth)/(tabs)/_layout.tsx:13:1)
    at loadModuleImplementation (/Users/expo/workingdir/build/node_modules/metro-runtime/src/polyfills/require.js:277:5)
    at guardedLoadModule (/Users/expo/workingdir/build/node_modules/metro-runtime/src/polyfills/require.js:177:21)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
yarn expo export:embed --eager --platform ios --dev false exited with non-zero code: 1

My app.json looks like this:

{
  "expo": {
    "name": "name",
    "slug": "slug",
    "version": "1.0.0",
    "orientation": "portrait",
    "icon": "./assets/images/icon.png",
    "scheme": "scheme",
    "userInterfaceStyle": "automatic",
    "newArchEnabled": true,
    "ios": {
      "supportsTablet": false,
      "associatedDomains": ["applinks:..."],
      "bundleIdentifier": "id",
      "usesAppleSignIn": true,
      "googleServicesFile": "./GoogleService-Info.plist",
      "infoPlist": {
        "NSCameraUsageDescription": "$(PRODUCT_NAME) needs access to your Camera.",
        "ITSAppUsesNonExemptEncryption": false
      },
      "appleTeamId": "id"
    },
    "android": {
      "googleServicesFile": "./google-services.json",
      "adaptiveIcon": {
        "foregroundImage": "./assets/images/adaptive-icon.png",
        "backgroundColor": "#fff"
      },
      "package": "packageid",
      "permissions": [
        "android.permission.CAMERA",
        "com.google.android.gms.permission.AD_ID"
      ],
    },
    "web": {
      "bundler": "metro",
      "output": "server",
      "favicon": "./assets/images/favicon.png"
    },
    "plugins": [
      "expo-router",
      "expo-localization",
      "expo-apple-authentication",
      "expo-dev-client",
      "@react-native-firebase/app",
      "@react-native-firebase/auth",
      [
        "expo-build-properties",
        {
          "ios": {
            "useFrameworks": "static"
          }
        }
      ],
      [
        "onesignal-expo-plugin",
        {
          "devTeam": "id",
          "mode": "production"
        }
      ]
    ],
    "experiments": {
      "typedRoutes": true
    },
  }
}

Packages:

    "@react-native-firebase/app": "^21.12.0",
    "@react-native-firebase/auth": "^21.12.0",
    "@react-native-firebase/firestore": "^21.12.0",
    "@react-native-firebase/storage": "^21.12.0",

Can you please help? I am not using initializeApp in anywhere.

[mikehardy]

looks promising that you've got the react-native-firebase plugins in there

You cut out most of your package.json so I can't see what Expo you are on - I think we support the new AppDelegate.swift with the expo config plugin now, as of 21.9.0 in fact (6a7867c) so it should be working

Looks to me like a project configuration / setup / install issue somehow - I'd triplecheck everything to make sure that config plugin is executing as it should be processing the ios AppDelegate file and adding the call to configure that handles this

If it's working in dev that's a strong hint that it should be working, I don't know what the difference is on EAS build, you might contact Expo support since dev builds are working - they may know more about dev build -> EAS build/archive difference

[omerkars78]

Same error

[furkananter]

looks promising that you've got the react-native-firebase plugins in there

You cut out most of your package.json so I can't see what Expo you are on - I think we support the new AppDelegate.swift with the expo config plugin now, as of 21.9.0 in fact (6a7867c) so it should be working

Looks to me like a project configuration / setup / install issue somehow - I'd triplecheck everything to make sure that config plugin is executing as it should be processing the ios AppDelegate file and adding the call to configure that handles this

If it's working in dev that's a strong hint that it should be working, I don't know what the difference is on EAS build, you might contact Expo support since dev builds are working - they may know more about dev build -> EAS build/archive difference

I am using this packages:

"dependencies": {
    "@babel/runtime": "^7.26.0",
    "@expo/vector-icons": "^14.0.2",
    "@gorhom/bottom-sheet": "^5.0.6",
    "@legendapp/list": "1.0.0-beta.11",
    "@lottiefiles/dotlottie-react": "^0.13.0",
    "@react-native-community/checkbox": "^0.5.17",
    "@react-native-community/datetimepicker": "8.2.0",
    "@react-native-firebase/app": "^21.12.0",
    "@react-native-firebase/auth": "^21.12.0",
    "@react-native-firebase/firestore": "^21.12.0",
    "@react-native-firebase/storage": "^21.12.0",
    "@react-native-google-signin/google-signin": "^13.2.0",
    "@react-native-menu/menu": "^1.2.0",
    "@react-native-picker/picker": "2.9.0",
    "@react-navigation/drawer": "^7.1.1",
    "@react-navigation/native": "^7.0.14",
    "@reduxjs/toolkit": "^2.2.7",
    "aes-js": "^3.1.2",
    "crypto-js": "^4.2.0",
    "expo": "~52.0.26",
    "expo-apple-authentication": "~7.1.3",
    "expo-application": "~6.0.1",
    "expo-blur": "~14.0.3",
    "expo-build-properties": "~0.13.1",
    "expo-clipboard": "~7.0.0",
    "expo-constants": "~17.0.3",
    "expo-dev-client": "~5.0.10",
    "expo-device": "~7.0.1",
    "expo-document-picker": "~13.0.3",
    "expo-file-system": "~18.0.6",
    "expo-font": "~13.0.2",
    "expo-haptics": "~14.0.0",
    "expo-image": "~2.0.3",
    "expo-image-manipulator": "~13.0.6",
    "expo-image-picker": "~16.0.3",
    "expo-linear-gradient": "~14.0.1",
    "expo-linking": "~7.0.3",
    "expo-localization": "~16.0.0",
    "expo-media-library": "~17.0.4",
    "expo-notifications": "~0.29.11",
    "expo-router": "~4.0.17",
    "expo-splash-screen": "~0.29.21",
    "expo-status-bar": "~2.0.0",
    "expo-system-ui": "~4.0.6",
    "expo-tracking-transparency": "~5.1.0",
    "expo-web-browser": "~14.0.1",
    "i18next": "^23.15.1",
    "lottie-react-native": "7.1.0",
    "lucide-react-native": "^0.469.0",
    "onesignal-expo-plugin": "^2.0.3",
    "posthog-react-native": "^3.11.2",
    "react": "18.3.1",
    "react-dom": "18.3.1",
    "react-hook-form": "^7.54.2",
    "react-i18next": "^15.0.1",
    "react-native": "0.76.7",
    "react-native-compressor": "^1.10.3",
    "react-native-crypto": "^2.2.0",
    "react-native-gesture-handler": "~2.20.2",
    "react-native-ios-context-menu": "^3.1.0",
    "react-native-ios-utilities": "^5.1.1",
    "react-native-keyboard-controller": "^1.15.2",
    "react-native-keychain": "^9.2.2",
    "react-native-markdown-display": "^7.0.2",
    "react-native-mmkv": "^3.2.0",
    "react-native-onesignal": "^5.2.9",
    "react-native-pager-view": "6.5.1",
    "react-native-purchases": "^8.2.1",
    "react-native-purchases-ui": "^8.7.0",
    "react-native-randombytes": "^3.6.1",
    "react-native-reanimated": "~3.16.1",
    "react-native-safe-area-context": "4.12.0",
    "react-native-screens": "~4.4.0",
    "react-native-sse": "^1.2.1",
    "react-native-svg": "15.8.0",
    "react-native-uuid": "^2.0.3",
    "react-native-web": "~0.19.10",
    "react-native-zoom-toolkit": "^4.0.1",
    "react-redux": "^9.1.2",
    "sonner-native": "^0.17.0",
    "yup": "^1.6.1",
    "zeego": "^2.0.4",
    "zod": "^3.24.1"
  },
  "devDependencies": {
    "@babel/core": "^7.20.0",
    "@types/aes-js": "^3.1.4",
    "@types/crypto-js": "^4.2.2",
    "@types/jest": "^29.5.12",
    "@types/react": "~18.3.12",
    "@types/react-native-get-random-values": "^1.8.2",
    "@types/react-test-renderer": "^18.0.7",
    "babel-plugin-module-resolver": "^5.0.2",
    "eslint": "^8.57.0",
    "eslint-config-expo": "~8.0.1",
    "react-native-svg-transformer": "^1.5.0",
    "react-test-renderer": "18.2.0",
    "typescript": "~5.3.3"
  },

Also, there are no differences between the Xcode archive and the eas build. I am still getting the same errors.

I rebuilt it for development and everything works fine. I am trying to archive and send it to the Testflight but I can't get the archive build.

@mikehardy

[mikehardy]

I hear what you are saying, however I don't personally use Expo - sorry - so I'm just not aware of what the differences are between a dev build and whatever Expo does for a production / archive build. I understand this seems a bit like passing the buck however, please consider:

• we do host a config plugin, and it must be working because it works in dev?
• the app itself works in dev indicating our module code is working?

I'm not sure how we can be responsible for build variations between dev and archive in an Expo context. That feels like an Expo issue to me

[furkananter]

I hear what you are saying, however I don't personally use Expo - sorry - so I'm just not aware of what the differences are between a dev build and whatever Expo does for a production / archive build. I understand this seems a bit like passing the buck however, please consider:

• we do host a config plugin, and it must be working because it works in dev?
• the app itself works in dev indicating our module code is working?

I'm not sure how we can be responsible for build variations between dev and archive in an Expo context. That feels like an Expo issue to me

@mikehardy
The app is working on Development.
Can you check these logs, please? It looks like polyfills has issues

Metro error: No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()

  Error: No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()
    at call (/…/node_modules/@react-native-firebase/app/lib/internal/registry/app.js:96:11)
    at getApp (/…/node_modules/@react-native-firebase/app/lib/modular/index.js:75:23)
    at getAuth (/…/node_modules/@react-native-firebase/auth/lib/modular/index.js:52:16)
    at factory (/…/context/FirebaseProvider.tsx:26:21)
    at loadModuleImplementation (/…/node_modules/metro-runtime/src/polyfills/require.js:277:5)
    at guardedLoadModule (/…/node_modules/metro-runtime/src/polyfills/require.js:184:12)
    at require (/…/node_modules/metro-runtime/src/polyfills/require.js:92:7)
    at factory (/…/app/(auth)/(tabs)/_layout.tsx:13:1)
    at loadModuleImplementation (/…/node_modules/metro-runtime/src/polyfills/require.js:277:5)
    at guardedLoadModule (/…/node_modules/metro-runtime/src/polyfills/require.js:177:21)
error: No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()
Error: No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()
Error: No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()
    at call (/…/node_modules/@react-native-firebase/app/lib/internal/registry/app.js:96:11)
    at getApp (/…/node_modules/@react-native-firebase/app/lib/modular/index.js:75:23)
    at getAuth 

> (/…/node_modules/@react-native-firebase/auth/lib/modular/index.js:52:16)

    at factory (/…/context/FirebaseProvider.tsx:26:21)
    at loadModuleImplementation (/…/node_modules/metro-runtime/src/polyfills/require.js:277:5)
    at guardedLoadModule (/…/node_modules/metro-runtime/src/polyfills/require.js:184:12)
    at require (/…/node_modules/metro-runtime/src/polyfills/require.js:92:7)
    at factory (/…/app/(auth)/(tabs)/_layout.tsx:13:1)
    at loadModuleImplementation (/…/node_modules/metro-runtime/src/polyfills/require.js:277:5)
    at guardedLoadModule (/…/metro-runtime/src/polyfills/require.js:177:21)

I can't have a build. What do you recommend?

[mikehardy]

It looks like polyfills has issues

doesn't look like that to me. just because it's a stack frame doesn't mean it's a cause.

Looks to me like whatever unknown thing EAS is doing to build, it's not applying the @react-native-firebase/app expo config plugin correctly, so AppDelegate file is not being modified correctly to call the firebase configure method.

That's my hunch. Root cause though? No idea.

Please don't ignore this - it's my best advice:

I'm not sure how we can be responsible for build variations between dev and archive in an Expo context. That feels like an Expo issue to me

[SulthanNK]

I'm facing this issue in the (non expo) react native app in the iOS only (works fine in android) even in the debug mode.

Currently, Using version

react-native: 0.75.2
@react-native-firebase/app : 16.5.0

[MichaelVerdon]

Hey there @SulthanNK can you please try upgrading your Firebase and seeing if the issue persists as that is quite an old version.

[MichaelVerdon]

Hey there @furkananter I have always found things to be a bit finicky on expo. I see you said you are not using initializeApp(), can I please get you to try it with that?