![]() You can delete the /ios folder when you're done to ensure your project remains managed by Expo CLI.Generate the native code for your project with: npx expo prebuild -p ios. ![]() You can perform full native debugging with Xcode and Android Studio by generating the source code locally and building from source. That's exactly why so many open source repos require a minimal reproducible demo in their bug reports- it ensures you have isolated the issue and identified exactly where the problem lies! If your app is too large and complex to do that, try and extract the functionality you're trying to add to its own blank npx create-expo-app project, and go from there. If you are able to simplify your code as much as possible, tracking down the source of an error gets exponentially easier. Using console.log for debugging isn't considered the best practice, but it's fast, easy, and oftentimes provides some illuminating information ![]() Use breakpoints (or console.logs) to check and make sure a certain piece of code is being run, or that a variable has a certain value.This should narrow down the possible sources of the error, and provide you with more information to search the internet for others who have had the same problem.For example, if you use a state management library like Redux, you can try removing that from the equation completely to see if the issue lies in your state management (which is really common in React apps) If the code you're adding in each "piece" is complex, you may want to simplify what you're doing.Apply your recent changes piece by piece, until it breaks.Revert back to a working version of your code (this may even be a completely blank npx create-expo-app project).This step is vital in fixing obscure errors. Isolate the code that's throwing the error.Search for the error message in Google and Stack Overflow, it's likely you're not the first person to ever run into this.For errors that aren't as intuitive to solve, here's a good list of steps to take: Sometimes you'll be able to tell exactly what's wrong just by the stack trace, but other times the error message is a little more cryptic. Usually, debugging when running your app locally with Expo CLI is pretty easy, thanks to all the tools available in the Expo Go app. These are way more common, and we won't delve too much into how to approach these. Let's go through some of our recommended practices when it comes to each of these situations, and at the end of this guide, we'll recommend tools that can make debugging easier. Errors you (or your users) encounter in production.Errors you encounter in the development.It's useful to split errors into two categories: Whether you're developing your app locally, sending it out to select beta testers, or launching your app live to the app stores, you'll always find yourself debugging issues. Learn about different techniques and tools available to debug your Expo project.
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