How to Fix Invariant Violation: requireNativeComponent: 'RNGADBannerView' Error in React Native

Learn how to troubleshoot and resolve the 'Invariant Violation: requireNativeComponent: "RNGADBannerView" was not found in the UIManager' error in your React Native application.
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How to Fix Invariant Violation: requireNativeComponent: "RNGADBannerView" Error in React Native

If you’re developing a mobile application using React Native and you encounter the error message: 'Invariant Violation: requireNativeComponent: "RNGADBannerView" was not found in the UIManager,' you're not alone. This error often crops up when working with ads in React Native, particularly when integrating the react-native-admob package. In this guide, we will guide you through the steps to effectively troubleshoot and resolve this issue so you can get back to building your app without interruptions.

Understanding the Problem

When you attempt to use ad components, like the AdMobBanner from the react-native-admob package, the React Native framework has trouble locating the necessary native component— in this case, RNGADBannerView. This is primarily caused by issues in linking or configuring the package correctly with your iOS setup.

Steps to Fix the Error

Let’s break down the necessary steps to resolve the Invariant Violation error:

1. Update Your Package Versions

One of the first recommendations is to ensure you are using the latest versions of all relevant packages. This includes React, React Native, and react-native-admob. The latest versions support autolinking, which simplifies the integration process.

Current versions in your project:

[[See Video to Reveal this Text or Code Snippet]]

Consider updating to the newer stable releases.

2. Update Your Podfile

Ensure that you have the correct entries in your Podfile for the Google-Mobile-Ads-SDK. Open your Podfile located in the ios directory and add the following line if it’s missing:

[[See Video to Reveal this Text or Code Snippet]]

3. Install Pods

After updating your Podfile, you need to install the pods to ensure all necessary dependencies are correctly linked. Do this by running the following commands in your terminal:

[[See Video to Reveal this Text or Code Snippet]]

This command will ensure your project is using the latest versions of the installed pods.

4. Add GADApplicationIdentifier

5. Revisit Your Component Implementation

Double-check your ad implementation in the component where you are using AdMobBanner. Here’s a basic example of how it should look:

[[See Video to Reveal this Text or Code Snippet]]

6. Clean and Rebuild the Project

After completing the aforementioned steps, it's advisable to clean your build folder and rebuild your project to help clear up any lingering issues. You can do this through Xcode:

Open your project in Xcode.

Select Product from the top menu.

Click on Clean Build Folder and then Build your project again.

Conclusion

By following these structured steps, you should be able to overcome the 'Invariant Violation' error regarding RNGADBannerView. Keeping your packages updated, ensuring proper linking, and making the necessary configurations are key to smooth ad integration in your React Native application. Happy coding!