Expo, ios simulator stuck on downloading js

I think it has to do with the build process modifying a file, which triggers a watch, which restarts the build. Skip to content. Star New issue. Jump to bottom. Expo client app stuck at "Building JavaScript bundle Copy link. Description I have scanned the QR code and the console says "Finished building JavaScript bundle in X ms", but my app does not load on the Expo client. Expected Behavior It should load my app which shows "Hello World" Observed Behavior Expo client stuck at loading screen If there's an error message, please paste the full terminal output and error message in this code block: Building JavaScript bundle Any luck with this?

I have the same problem So I have had nothing but problems with Expo. Is there another way to test my app? Did anyone find the solution? Uncaught in promise TypeError: Failed to fetch. To add some more information, I was running an ejected app when this happened and on iOS Even after creating fresh with react-native-init. Uncaught in promise TypeError: Failed to fetch I believe this could potentially be caused by updating sdkVersion from Reply to this email directly, view it on GitHub, or mute the thread.

Maybe we can create a new one? Saves time and allows me to continue to use my computer while I wait for the build! Arkansas Western District Court uses expo web. Expo-compatible libraries.

Android Client Android client for viewing projects. CLI Command-line interface for building projects called expo-cli.

Snack Expo in the browser. Forums Get answers to your problems. Discord Community chat for Expo developers. Laptop illustration. Make any app. Run it everywhere. Build one project that runs natively on all your users' devices Get Started. Devices illustration. Try it out Get started by editing the code below, then see your changes on your own device.

For your development machine, Windows, Linux, and macOS are all supported. Expo CLI. Expo CLI is a command line app that is the main interface between a developer and Expo tools.

Expo CLI also has a web-based GUI that pops up in your web browser when you start your project — you can use the GUI instead of the command line interface if you're not yet comfortable using a terminal or prefer GUIs, both have similar capabilities.

Only Node. As Node. Recommended Tools. Basically, I don't think this is a bug with Expo. Tried deleting yarn. Changing to class component solved the issue for me. Thanks for the find arisferyanto , looks like they're planning on fixing this in 0. Thanks arisferyanto You are right. However, I noticed that only the App.

The rest of the components can be in the form of functional component! In case this of help to anyone else, this issue came up for me searching for a solution to the iOS simulator not picking up hot changes. The message at the bottom of the simulator screen would show, but nothing would change. The fix for me was to delete the Expo app from the simulator phone, and then reinstall it by pressing i in the expo terminal window. Thanks tslocke , this was the only way to get the Simulator to pick up code changes again.

For some reason, it was stuck on a cached, old version of some files. I already tried restarting the bundler, and force closing and restarting the app, and disabling fast refresh.

This was on the latest Expo btw:. Edit: it actually seems to have to do with the "Debug Remote JS" option!