If you've worked with React Native on iOS, you've probably encountered a CocoaPods error at some point. You run pod install, expecting the dependencies to install normally, and instead you get an error about incompatible versions, missing specifica...

If you've worked with React Native for a while, you've probably run into a problem where Metro refuses to start, gets stuck while bundling, or leaves your app waiting for JavaScript that never arrives. Sometimes the terminal shows an error immediat...

How to Fix “Unable to Resolve Module” Errors in React Native and Expo If you have been working with React Native or Expo for a while, there is a good chance you have seen an error that looks something like this: Unable to resolve module ./componen...

There is a particular kind of Expo error that I think almost every developer eventually runs into. You make a change to your project, run your usual build command: eas build and instead of getting a nice .apk or .aab at the end, you get: Build ...

You make a small change to your React Native project, install a new package, or upgrade a dependency. Everything looks fine until you try to build your Android app. Then Gradle stops with something like: Execution failed for task ':app:mergeDexDebu...

If you've been developing with React Native or Expo for a while, chances are you've had a project that suddenly refuses to build for what seems like no reason. Maybe you installed a new package. Maybe you upgraded Expo. Maybe you only changed a sin...

I recently spent far more time than I'd like to admit chasing down a hard crash after upgrading a project from Expo SDK 54 to 55. The app launched fine. Navigation worked. Everything looked normal. Then the moment a Reanimated animation fired, the...

The Crash You pull down a fresh React Native repo, or you upgrade your Expo project, navigate to your ios directory, and run your standard installation command: pod install Instead of a clean build, your terminal drops a wall of text pointing to...

How to Fix MismatchSenderId in Expo EAS Push Notifications Across Multiple Environments If you are managing multiple environments Staging, Preview, Production in a React Native Expo app, setting up Firebase Cloud Messaging FCM can quickly turn into...

We’ve all been there. You find an awesome library, you run npx expo install, you import it into your code, and you start your development server. You expect magic. Instead, your simulator turns blindingly red with an error that looks something li...

If you’ve been building mobile apps with React Native or Expo long enough, you’ve definitely hit that brick wall where a standard debug build works perfectly, but the moment you run eas build or try to compile a production AAB/APK for the Play Store,...

If you are a React developer stuck in tutorial hell with no real portfolio, this walkthrough is for you. In this article, I’ll break down how I built a React portfolio website with Vite and Tailwind CSS that helped me land ₹1.2L+ in freelance projec...

> This article was originally published on BuildZnhttps://www.buildzn.com/blog/flutter-vs-react-native-ai-apps-my-2026-take. Everyone talks about how AI will change mobile, but nobody explains which tech stack actually gets you there without burning...

React Native Android builds can fail for a lot of reasons—but one of the most common and confusing ones is: Could not resolve dependency If you’ve seen this, you probably also noticed: the error message is long it looks very “Gradle-heavy” and...

Autolinking in React Native is supposed to simplify native module integration—but when it breaks, it can be frustrating and time-consuming to debug. If your Android build is failing or a package isn’t being recognized, autolinking is often the root...