Solving the Infamous “After clone a react-native project running into error FirebaseCoreInternal.modulemap” Error

If you’re reading this, chances are you’ve stumbled upon one of the most frustrating errors in the React Native universe: ” FirebaseCoreInternal.modulemap” error after cloning a React Native project. Don’t worry, you’re not alone! We’ve all been there, and it’s time to put an end to this madness.

What is FirebaseCoreInternal.modulemap error?

The FirebaseCoreInternal.modulemap error occurs when your React Native project fails to compile due to a mismatch between the Firebase framework and the React Native dependency versions. This error can be triggered by a variety of factors, including:

• Outdated or incompatible library versions
• Corrupted or missing module maps
• Insufficient or incorrect configuration
• -conflicting dependencies

Prerequisites

Before we dive into the solution, make sure you have:

• Node.js installed on your machine (version 14 or higher)
• Yarn or npm package manager installed
• A cloned React Native project with the Firebase Core library integrated
• Firebase Core SDK installed (via npm or yarn)

Solution 1: Update Firebase Core SDK

One of the most common causes of the FirebaseCoreInternal.modulemap error is an outdated Firebase Core SDK version. To resolve this, follow these steps:

1. Open your terminal and navigate to your project directory
2. Run the command yarn add @react-native-firebase/core@latest (or npm install @react-native-firebase/core@latest if you’re using npm)
3. Verify that the installation was successful by checking the version of the Firebase Core SDK using yarn list @react-native-firebase/core (or npm ls @react-native-firebase/core)
4. Run yarn react-native run-ios (or npx react-native run-ios if you’re using npm) to rebuild your iOS project

Solution 2: Clean and Rebuild your Project

Sometimes, a simple clean and rebuild of your project can resolve the FirebaseCoreInternal.modulemap error. Here’s how:

1. Open your terminal and navigate to your project directory
2. Delete the node_modules directory by running rm -rf node_modules (or rmdir /s /q node_modules on Windows)
3. Run yarn install (or npm install) to reinstall your dependencies
4. Delete the Podfile.lock file by running rm Podfile.lock (or del Podfile.lock on Windows)
5. Run pod install to reinstall your CocoaPods dependencies
6. Run yarn react-native run-ios (or npx react-native run-ios if you’re using npm) to rebuild your iOS project

Solution 3: Check and Update your Podfile

Another common cause of the FirebaseCoreInternal.modulemap error is an outdated or incorrect Podfile configuration. Here’s how to fix it:

  
  // Open your Podfile and add the following lines:
  pod 'FirebaseCore', '~> 7.3.0'
  pod 'FirebaseCoreInternal', '~> 7.3.0'
  
  // Then, run:
  pod install
  

Solution 4: Remove and Re-add Firebase Core SDK

If the above solutions don’t work, it’s time to remove and re-add the Firebase Core SDK:

1. Open your terminal and navigate to your project directory
2. Run yarn remove @react-native-firebase/core (or npm uninstall @react-native-firebase/core) to remove the Firebase Core SDK
3. Delete the node_modules directory by running rm -rf node_modules (or rmdir /s /q node_modules on Windows)
4. Run yarn install (or npm install) to reinstall your dependencies
5. Run yarn add @react-native-firebase/core@latest (or npm install @react-native-firebase/core@latest) to re-add the Firebase Core SDK
6. Run yarn react-native run-ios (or npx react-native run-ios if you’re using npm) to rebuild your iOS project

Troubleshooting Common Issues

Here are some common issues you might encounter while resolving the FirebaseCoreInternal.modulemap error:

Error Message	Solution
Cannot find module 'metro'	Run yarn add metro@latest (or npm install metro@latest) to install the latest version of Metro
Pod install fails with error	Delete the Podfile.lock file and run pod install again
Firebase Core SDK not found	Verify that you have installed the Firebase Core SDK correctly and try re-running the installation command

Conclusion

The FirebaseCoreInternal.modulemap error can be a frustrating hurdle, but with these solutions, you should be able to resolve the issue and get your React Native project up and running smoothly. Remember to always keep your dependencies up-to-date, clean and rebuild your project regularly, and troubleshoot common issues to avoid this error in the future.

Happy coding, and may the odds be ever in your favor!

Frequently Asked Question

Are you tired of dealing with errors when cloning a React Native project? Don’t worry, we’ve got you covered! Below are some frequently asked questions and answers to help you troubleshoot the pesky “FirebaseCoreInternal.modulemap” error.