Expo error opening simulator check metro logs for details. - Issues · expo/expo
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Expo error opening simulator check metro logs for details ts you have to add. Usage. To open the project inside your development client: Press a or i keys to open your project on an Android Emulator or an iOS Simulator. paths and compilerOptions. Then, follow the additional instructions as mentioned by the library's README under "Installation in bare React Native projects" section. You'll see an URL right in front of you. If I remember correctly it was preventing clear text connections except to localhost and maybe private IP addresses. Navigation. node:events:496 throw er Expo's Metro config supports the compilerOptions. Sometimes expo run:ios gets stuck forever without giving any feedback. expo-shared specifically. json file here is the app entry: "main": "expo/AppEntry. But for yarn ios, app builds and opens up in simulator but the metro-bundler could not start so app is not running. Which seems not accessible on my Android Re-opening as I am experiencing a related issue on an M1 Mac. Step 2: Open Expo App in your mobile device, and click on the second tab 'Explore' and enter the URL that starts with exp://192. I am developing react native app using expo cli. [stderr] * Try: [stderr] > Run with --stacktrace option to get the stack trace. log from printing in terminal even after debugger is closed I really don't know how to revert this. Just run the following commands: # Kill current processes killall node -9 # Start React - Native react-native start # Run android react-native run-android or react-native run-ios Introduction. before doing above command make sure your application is removed from simulator. [stderr] ===== [stderr] 2: Task failed with an exception. Reference Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Before, I could run from Xcode and the simulator would appear in the Metro Bundler with all it's logs, that was very useful. # OrInvariant Violation: "main" has not been registered. To make console. On a physical device, scan the QR code from your system's camera or a QR code reader to open the project on your device. Configuration. Check metro logs for details'. 9. log from printing in terminal even after debugger is closed I If you are installing this in an existing React Native app, start by installing expo in your project. 対処法3 node_modulesをクリアしてみる Not all logs are sent to the logs you see in Xcode, typically you view logs in a browser When going to Simulator > Debug > Open System logs, I get all the simulator runtime logs but no console. You switched accounts on another tab or window. js) file. If you are using a simulator, sometimes the network Error opening simulator. Sometimes the iOS Simulator doesn't respond to the open command. [stderr] > Run with --info or --debug option to get more log output. Solution 2 and 3 doesn't apply to me since I'm using expo. e. I was also facing same issue Error: EMFILE: too many open files, watch during running my android/IOS app in expo react native. There are 35 other projects in the npm registry using react-native-logs. You can clear $TMPDIR and also look in the CLI’s help menu for the cache reset commands but I think the issue is on the device’s side. Try o Step 1: Open Expo XDE, and click on the gray cog to change host mode to LAN. Set up your environment. 1- In app. And the most annoying thing is that it is so easy to open the debu Summary Opening debugger in metro (or rather expo start) stops console. macOS File Descriptor Limits Only applicable on macOS 10. Checks whether the device has been rooted (Android) or jailbroken (iOS). 23:55:17: Failed to start simulator: Unable to verify Xcode and Simulator installation. Summary Background I installed a mapview library @rnmapbox/maps to my project. and I'm back in business. From the SDK Platforms tab, select the latest Android version (API level). you can try restarting your wifi/computer & restarting xde. Run "expo doctor" it will tell you if it doesn't like any of the versions. If logs are absent in the Android case, it may indicate an improper connection Check the name in your app. When I run expo start the Metro Builder starts automatically only if disconnected from the internet and with the --offline switch. How can I solve this error? Expo may give you a QR code that your Android can't reach. Develop. Check Metro logs for details” in the bottom right of the http://localhost:19002/ page. This issue is about the thread I posted on BlueSky the other day (CC @ccheever and @EvanBacon who engaged with the original thread). a last resort is connecting your device to the LAN and strong text running from there You signed in with another tab or window. Please, check it first if having issues with connecting to a simulator. Start using react-native-logs in your project by running `npm i react-native-logs`. Stack Overflow. Further, many root-detection checks can be bypassed via reverse engineering. You’ve stopped watching this thread and will no longer Now open any text editor in your phone and type exp://192. HTTPS used. 再起動するコマンドはこちら expo start -c ※-cオプションを追加するとキャッシュクリアして再起動できます。. you need to 'manually' configure your simulator to access charles (and last time i tried, going in the config panel wouldnt do the Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company run expo start to start the Project. , press i | open iOS simulator ). About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent I was facing the same issue. When expo start is running in Linux terminal, Ctrl+C does not terminate the process or stop the server. The original, official subreddit for all things Essential (the now closed mobile tech company), and its successor, OSOM. java. I do not know what steps to take next. Then, click on the SDK Tools tab and make sure you have at least one version of the Android SDK Build-Tools and Android Emulator installed. On the terminal, wait for all options to be displayed, like so: To run the app with live reloading, choose one of: Now load a device from Try using Expo in a Simulator on your development machine and determine if it is taking as long as on your device: If it is faster than on your test device, then you should check the network connection on your test device; If it is as slow as on the test device, then you could try to remove node_modules and reinstall them with 'npm install' or To add to Tadeusz's answer, in the current version of Expo (I'm on 32. I've always hated the idea of global packages. The problem, it pops up a warning saying that if I'm not sure what I'm doing it's best to leave it as it I'm having an issue running iOS simulator from Expo. Docs. In my case, I installed android v9 (Pie) via the AVD Manager when setting up my AVD for the first time, and when I looked into this issue I noticed that the SDK Platform for v9 was not installed as part of that setup. About; Products OverflowAI ; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; You signed in with another tab or window. But I can not run it on my Android phone via QR code scan when Expo configuration is set to LAN mode. Make sure you enabled Development Mode. 2 Install the SDK using Yarn or NPM. In some rare cases, this issue When you are running on a simulator, you need to run expo start --android. android. In my case, even though I don't recall using npm to install exp, I nevertheless did a npm uninstall -g exp followed by yarn global add exp. $ DEBUG=expo:start:platforms:ios* npx expo run:ios --device Created native directory Updated package. import { LogBox } from 'react-native'; LogBox. If you’ve opted in to email or web notifications, you’ll be notified when there’s activity. js", Check Expo config (app. js 187 throw er; //Unhandled 'error' event Error: EMFILE: too many open Stuck on an issue? Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. Yarn: yarn add react-native-onesignal NPM npm install --save react @wodin was able to shed some more detail on the background of this issue:. ios; xcode; ios-simulator; xcode10; ios12; Share. There is no logged output on the screen or in the What could be wrong and how to address the problem? $ANDROID_HOME pointed to the wrong directory. Wait for the metro builder to be displayed in the browser. I completely removed Android Studio (see here for windows: How to completely uninstall Android Studio from windows(v10)? Reinstalled Android Studio; Started the Android Device Emulator Simply go to Android Studio and launch your device. json 📘. I'm using to the React Native CLI Quickstart path in that link. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with App installs on the simulator but Expo app gets this error: I think this is for ports. Check to see if you have any changes or errors in your Babel configuration. ). However, upon the Expo Go client opening on the Android emulator, it crashes almost immediately approximately 99% of the time. Simulator'; don't know what that is. When I start the server, I do see a prompt: Logs for your project will appear below. For running pure React Native app, the extension, creates and uses . I'm seeing these two errors: build before opening simulator: Trying to open the project in iOS simulator Opening iOS simulator iOS Simulator device failed to boot. I've been searching this for a couple days and the closest thing I've found to what I want, is using expo build:ios. xxx whereas your Yes @AndrewKoster I agree with you, we can view the all logs with ADB but this give you device logs here the query is related to logging a web development. I have a problem developing my first react native app with expo. js) schema Check that packages match versions Error: Cannot connect to Metro. When I manually change the Summary. I created my project using expo init appname. The problem is that since I turned on debugging for my app I am testing (React Native & Android emulator) I have been getting a white screen when the app loads with no information on the console and no ability to access the Dev menu to turn off the debugging. There is no android folder. This is better than using the traditional npm install or yarn install as it will install the version of the dependency that's compatible with your current Expo SDK. Basically in my app, I've a button which when clicked makes the api call. This fix from the Watchman documentation (after brew install watchman) - seemed to fix it for me:. log call will get duplicate prints in the console, due to both expo's logger and react-native's logger outputting the same message. › Press s │ switch to development build › Press a │ open Android › Press i │ open iOS simulator › Press w │ open web › Press j │ open debugger › Press r │ reload app › Press m │ toggle menu › Press o │ open project code in your editor › Press ? │ show all commands Logs for your project will appear below. net). Then straight away cd into the app directory and run "npx expo start", metro server started but when choosing to open simulator, gives me the caution I'll answer my own questions and sponfeed my fellow linux users: 1- To point JAVA_HOME to the JRE included with Android Studio first locate the Android Studio installation folder, then find the /jre directory. Development builds. json/ app. in my package. シェルの設定へ追加シェルの設定へ追加Zshの場合echo 'export PATH If your app throws unexpected errors, it can be hard to find the source of the error. [stderr] > Run with --scan to get full insights. I am using windows machine. Now anytime you want to load an app, you can copy the same address and open it in Expo. If I create my application using create-react-native-app, I can do 'console. You can use Chrome DevTools to pause your app and inspect the stack trace and variables the moment it throws an error. The next thing I tried, which seems to work, is to just force quit the iOS simulator, and restart my app as usual with npx expo start. Then straight away cd into the app directory and run "npx expo start", metro server started but when choosing to open simulator, gives me the caution When I ran yarn android the metro bundler successfully runs in a separate terminal and app runs with no issue. It errors out the first time. Used react native expo cli; Backend(Spring Boot) hosted on a Azure server ( Eg URL : https://abcd-spring-app. 1-cd ios 2-bundle install 3- bundle exec pod install After those steps i came across this (react native missing script) then i followed this steps. but that didnt resolve. The brew install watchman did not work for me. It collects links to all the places you might be looking at while hunting down a tough bug. but i have seen this issue remain Summary I'm attempting to migrate from using global expo-cli to local, I like the idea that projects contain all the tooling they need. log() from within the application. The launcher screen. json (or jsconfig. 168. How can I solve this error? I upgrade react native and do many issues from StackOverflow. If you want to change your app entrypoint (for example, from index. disableYellowBox is removed and now you can use code below to ignore all log notifications. json may be found on official Expo documentation page. 168 If you are using Expo SDK 50 or above, you can use the Expo dev tools plugins equivalents to the React Native Debugger: React DevTools; Redux DevTools; Chrome DevTools; If you are using Expo SDK 49 or below, you can use the React Native Debugger. Wait until packager to start running. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog The following issues were found when validating your dependencies against React Native Directory: Unsupported on New Architecture: @react-native-community/checkbox, react-native-image-crop-picker Untested on New Architecture: react-native-phone-input Unmaintained: react-native-deck-swiper, react-native-modal, react-native-phone-input No metadata available: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company How to check simulator logs? I am running project in Xcode 10 and simulator iPad (6th generation) 12. Unless you upgraded because of a new feature, this is OK. You can use console. Once I dragged it into the simulator, I can click on the app and use it, but it doesn't act like a development client Description In a project I have, for every console. Reload to refresh your session. ios. So, I have few questions on it. But where is the bundle file located ? Is . Instant dev environments Issues. Home Guides EAS Reference Learn. As the name suggest it creates a bundle. There's another simpler workaround I found. this usually happens when you have an inconsistent internet connection. 1. // This should boot up the preferred device ID using your device dump // Check if this works normally, or if it produces errors/warnings $ xcrun simctl boot 383DBFD9-E0A0-45E6-B79A-EB73567D8887 // Also try to shut it down, and boot it up again $ xcrun simctl shutdown 383DBFD9-E0A0-45E6-B79A-EB73567D8887 // If that fails, try to erase the simulator to I'm starting with react-native and I'm getting this problem: I can't log to bundler metro server. manifest), so it would look like. The server does not show any output, it just continues to run. Check package. Write better code with AI Security. ; Getting as far as the above and that's it. log work, I need to open Chrome Summary please have anyone experienceed this before, expo cli keep trying to open non existent simulators on my mac, i have cleared cache deleted and done everything i know, but its not working Logs for your project will appear below. 0, instead on iPad 6 simulator with iOS 11. ; Generate the native Android and iOS directories for your project: npx expo prebuild. You signed out in another tab or window. I installed expo-cli using yarn with yarn global add expo-cli. . Please check that metro is running and Flipper can connect to it. Following these log statements I added an alert() and the alert shows up in the simulator. that worked just fine and connected with emulator. In the terminal that is spawned by the Metro bundler you can enter the "d" key and it should open the developer Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company You signed in with another tab or window. when you run expo start, expo will automatically regenerate those files. What can I do? Also, I am using the latest versions of node, npm, expo-cli, react and react native as checked with "npm outdated" command. It looks like that port isn't being used when quick-opening (e. If it seems stuck on this prompt, you can open the iOS Simulator manually (open -a Simulator) and then in the macOS toolbar, choose File > Open Simulator, and select an iOS version and device that you'd like to open. The following is an extract of the project logs, as so Description. Open comment Did a fresh install of MacOS, Xcode v15, nodejs v22, and create a project using "npx create-expo-app tester --template blank" command. ADB gives you device logs as well you can control and check For Android, when employing the VSCode terminal to run your app on an Android emulator, logs will be visible in Metro. I completely removed Android Studio (see here for windows: How to completely uninstall Android Studio from windows(v10)? Reinstalled Android Studio; Started the Android Device Emulator Description I'm having an issue running iOS simulator from Expo. Note this is an expo managed project. › Press a for Android emulator, or i for iOS simulator, or w to run on web. also i have checked in Simulator -> Debug -> Open system log But not showing simulator log . npx expo install onesignal-expo-plugin. Observed Behavior This is my first time running the app It is possible, but you can't target it from the command line. Provide details and share your research! React Native Expo console log didn't work any more. Expo will just target the last opened simulator. Alternatively, when using Android Studio to run the app on an Android emulator, logs will appear in both the Android Studio RUN section and Metro. Correct You signed in with another tab or window. runtimeVersion: { policy: 'sdkVersion', } 2- Delete the node_module and package-lock. 3. everything looks good, my project is created but when ever I try to start my project, my computer is getting stuck at: starting metro bundler on port 19001 I am trying to run a React-Native project on the xCode iOS Simulator using Expo, and I get the following errors: There was a problem booting a device in iOS Simulator. Unset the EXPO_DOCTOR_ENABLE_DIRECTORY_CHECK environment variable to disable this check. But reopening Simulator did unjam it. Tools for development. Pr Try running npx expo start --no-dev --minify to reproduce the production JS bundle locally. 10:19001 <-- CORRECT port › Scan the QR code above with Expo Go (Android) or the Camera app (iOS) › Press a │ open Android › Press i │ open iOS simulator › Press w │ open web › I am trying to run android simulator using following command in my react-native project's terminal. It looks like that port isn't being used when quick-opening I was able to solve this as follows: Launch the Android Studio emulator; Open the Settings app within the emulator; Scroll down and tap on About Emulated Device; Scroll down on the next screen and activate developer mode (by tapping the build number repeatedly) Over on the Expo thread I opened, Brent helpfully recommended using yarn because npm5 apparently still has bugs. The project should build and run. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with I have just created new ReactNative project from Expo desktop app. An open-source framework for making universal native apps with React. When i run my app in VS code . 1 ; Opened Xcode 11. I've added a log of the isVisible state in render() and in a componentDidUpdate() and it always logs out true once I have pressed the button in GameScreen but it seems like the modal is ignoring it. After you check the firewall port 19000, and check that Android is on the same WiFi network as your dev machine, check if the url is 192. Note this is an expo If anyone facing this issue with a hosted backend server this is for your knowledge. I am working on react native project. A user commented that using yarn start —offline and selecting local worked to solve the problem (when expo start -offline didn't work). Search. Quitting Simulator didn't help. However, when I click on 'Run on Android Device/emulator' in the browser, I simply get en error message which says 'Error opening simulator. 4 when I click the Expo Go icon on simulator to open the app, it opens and closes immediately without running the app on simulator. Make sure you have the Expo CLI installed on your computer. Solution. Config plugins. I added a codeshare. js) schema @expo/config-plugins, @expo/metro-runtime, @expo/ngrok, @hookform/error-message, @hookform/resolvers, @reduxjs/toolkit, cross-fetch, fast-text To run the app, choose one of: › Scan the QR code above with the Expo app (Android) or the Camera app (iOS). ignoreAllLogs();//Ignore all log notifications Old answer before React Native 0. Consult IDE log for more details (Help | Show Log) Skip to main content. Steps I did to resolve: I have added the environment variable. User interface. ; Build and run the native apps locally: npx expo run:ios and npx expo run:android. Expo App crashes/shuts down when remote js debug is activated on SDK 39 for Android. Now I wanted to try it in the Expo go, mobile emulator. Click on Hardware > Device and choose the device you desire. log' and value are logged to metro bundler (running on port 8081). What I've Done So Far. gz file from my expo dashboard, extracting the . On Android, this module requires permissions to access the network and Wi-Fi state. io link Simulator is installed but is identified as 'simu. I followed the guide on Expo's official yes i found it. watchman watch-del-all, npx expo start -c and run application in terminal and it worked well. Sometimes I get this err: “Expo Developer Tools is disconnected from Expo CLI. Now if I run expo start it just show this. On linux, you can set JAVA_HOME by adding this You signed in with another tab or window. I tested it with iOS, android and an simulator. Device logs contain much more detailed stacktraces and information. Constants. To launch iOS device use bash and type open -a simulator. I suggest restarting React. Open Android Studio, go to Settings > Languages & Frameworks > Android SDK. Try open Skip to main content. Same issue. Updated my Xcode to Version 11. console. › Waiting on exp://192. Highlights. Summary Background. x:19000. expo start したターミナルにて ctrl + cで終了できます。. 63 In 5 comprehensive but easy steps :. 63. I did so with: expo build:ios --clear-provisioning-profile To see the full list of commands that clear specific elements from the cache, run expo build:ios --help I try to run a react-native-cli project using react-native start, and the metro bundler fails, saying the following: events. Sign in Product GitHub Copilot. › Metro waiting on exp://10. I just did. Expo runs on Android, iOS, and the web. since i m new, , and this is my first time importing github project. - Issues · expo/expo Folks. Starting Metro Bundler on port 19001. Quit Simulator, and try aga Skip to main content. app file, and dragging it into the simulator. js to I can't find a proper documentation for metro bundler. I have tried: I checked and unchecked the simulator keyboard settings, “Connect Hardware Keyboard”. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with The issue of expo not working without an internet connection was raised on the expo github site a while ago. Skip to main content. Specs: React Native, xCode, iOS Simulator. Metro is started but there is warning on simulator's screen, after this warning android simulator stopped to Synchronize with my project. Latest version: 5. I installed Android studio and set the path in environment variables. 1 Install the OneSignal Expo plugin using the Expo CLI. Logging information in a React Native app works similarly to in a web browser. js which points to the app entrypoint (index. Press it and your app should load. 2-Press the start the active scheme button (looks like a play So I've opened up my react-native app in Expo today (using the iOS simulator) and I am creating by what looks like a debugging overlay. We're here keeping the lights on with home brew and even some user built custom hardware. Automate any workflow Codespaces. json for common issues Check Expo config for common issues Check if the project meets version requirements for submission to app stores Check for common project Summary I'm using expo start -p to run two expo apps at the same time. 6 and earlier But I am not able to do so and get the following error, My problem is that my laptop's hardware is a outdated and the Android simulator takes a long time to get running with processor hitting 100% usage. json file Problem: Hey Stackoverflow. Sample repo containing the sample app for running OneSignal with Expo. To Add System Variable, search environment variable in Windows (or search google how to open environment variables, if Check logs for more details. azurewebsites. This feature requires additional setup in bare projects. 0. config. I'm using Xcode simulator to test it on ipad. Deleting the watchman cache didn't help. Performance-aware simple logger for React-Native with namespaces, custom levels and custom transports (colored console, file writing, etc. See TypeScript guide for more information. 1-Open the Xcode and open your project with Xcode. Navigation Menu Toggle navigation. Try that! Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Folks. Because of internet issues, I was testing my react native app last week only in the web emulator. You signed in with another tab or window. Any suggestions? I use the follow 対処法1 expoを一度落として再起動する. Expo Start stuck on "Starting Metro Bundler": Expected Behavior. So I found the solution myself. I am using windows 10 and expo 46. js or . I'm currently running xCode and just trying to start my hello world however despite numerous approaches I cannot get the dev menu in the iOS Simulator to open. The device where I started it doesn't even show up in the list. If I run Please check this for more info charles can be a bit problematic to capture outgoing requests. For in-depth information, check its Roll back your Expo version to the previous version that was working. Error opening simulator. This is not completely reliable because there exist solutions to bypass root-detection on both iOS and Android. (y) y Enabled experimental React Native Directory checks. This is the console output, there are no errors or warnings (the same is true for expo start --offline): Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I solved this by deleting all expo related files and folders in my project . This takes forever. baseUrl fields in the project's tsconfig. See the Metro setup guide for more When I run my react-native app I can't see my logs. Get started . registerComponent() You signed in with another tab or window. The project I am having problems with is running on WS Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Encountered this issue on my M1 Macbook Pro. Next steps. g. It worked well before I reinstall computer OS. Check Metro logs for details. json for common issues Check dependencies for packages that should not be installed directly Check for issues with metro config Check for common project setup issues Check npm/ yarn versions Check Expo config (app. I have tried putting console logs in the modal file to see if the state is actually changing and it does seem to be. 0, last published: 2 months ago. Sometimes it's necessary to open the full Xcode logs to find the information that you need; for example, if the JavaScript build failed but you don't see any useful information on the build details page. Open Expo app. Also you might want to use Tunnel instead of ScreenShot Why does this happen, expo throws off a strange error? Couldn't start project on Android: ⥬ 㤠 㪠 . That directory's full path is what you need to set JAVA_PATH to (thanks to @TentenPonce for his answer). i had another project that i saved. adb server version (41) doesn't “Error opening simulator. Blog Changelog Star Us on GitHub. [stderr] ----- [stderr] * What went wrong: [stderr] java. The exact steps I took are as follows: Now for any Expo based API or dependency you can install it by using expo install instead of npm install i. Click again to stop watching or visit your profile to manage watched threads and notifications. Summary Opening debugger in metro (or rather expo start) stops console. 2. Currently, the expo-cli does need an internet connection to start. vscode/exponentIndex. The hotkey CMD + D will not work. Issue with opening IOS Simulator App Store Distribution & Marketing General App Store Accessibility You’re now watching this thread. Find and fix vulnerabilities Actions. I tried expo upgrade and expo doctor to try to resolve issues that way. 5. I've had couple months break of not developing mobile, and all of a sudden I can't run my app on simulator any more, It loads for very long time and then I get this error: I'm using expo to develop a react native app on Windows 10. 3 using the official docs. expo install @expo/vector-icons. I am, however, getting some errors from watchman I will include below. log, ScreenShot Why does this happen, expo throws off a strange error? Couldn't start project on Android: ⥬ 㤠 㪠 . If possible, connect your device and access the device logs via Android Studio or Xcode. json) file. if that doesn’t work, you can try using a different network to connect to the internet. You should refer to the react Description Unable to run the app on the XCode simulator while running sudo yarn ios command. If you get a chance to try this, please post back if it worked for you. Did a fresh install of MacOS, Xcode v15, nodejs v22, and create a project using "npx create-expo-app tester --template blank" command. Sometimes breaking changes go into the release. Make sure you are connected to the same network as your phone and PC, you can try signing in and starting the project from your recent development tab on expo client. Cause As I mentioned in the question, it errors out only the first time I'm making the request. Expected Behavior The app should had started working in the opened up iPhone simulator. Open an issue on their GitHub so they know about this. Press Ctrl+C to exit. Start developing. 10. but problem not solve. registerComponent() Check that you're passing this name into AppRegistry. ; After successful init, running expo start in the new folder. Introduction. I'm seeing these two errors: Trying to open the project in iOS simulator Opening iOS simulator iOS Simulator device failed to boot. I'm attempting to create a Hello World style program with React Native 0. js or index. npm start After some process I am entering 'a' to start android simulator. Check that you're passing this name into AppRegistry. I'm on a M1 Mac -- might have something to do with it. Create a project. If you are installing this in an existing React Native app, start by installing expo in your project. import { Constants } from 'expo'; const { Full list of configuration parameters for expo section in app. I have checked in Xcode-> Window -> Devices and simulators -> select "simulator" But not showing simulator log . There was an issue with earlier versions of Expo Go after the Expo SDK 50 release, or around the time of the release. It works fine on iPad 6 simulator with iOS 15. But as soon as I Refer to the CLI logs and the native device logs for more details. This section provides quick get started instructions. the 1% of the time it doesn't crash, the app will load and then crash. Share Sort by: Best. When connected the --offline switch is useless. Copy this text to your clipboard. I've gotten to the section: Re-opening as I am experiencing a related issue on an M1 Mac. The usual expo start is only for connected devices. 1" was selected as my The CLI seems to be stuck when opening a Simulator. json Everything always used to work with my ios simulator, I would simply type npm start press i to open simulator, and everything would simply work. 0 right now), you would import Constants rather than Expo (even though the constants are referenced in the docs as Expo. Use the expo start command Learn how to view logs when using Expo CLI, native logs in Android Studio and Xcode, and system logs. Then, follow the additional instructions provided by the library's README or documentation. expo and . Also, double check that you did not reorganise files in your folder or change any paths in the code hence the path I reset my entire machine (MacBook Pro with Apple Silicon) and reinstalled homebrew, watchman, node, yarn, xcode, and expo-cli. If you launch the development build from your device's Home screen, you will see your The fix for me was to install the SDK Platform for the android version used by the AVD. I'm not sure but as I know loca Skip to content. xx. 0. This enables absolute imports and aliases in the project. json | no changes Finished prebuild Installed CocoaPods expo:start:platforms:ios:xcrun Running: xcrun simctl list devices --json +0ms expo:start:platforms:ios:xcrun Running: xcrun simctl list devices --json +73ms The expo package provides a small and powerful CLI tool npx expo which is designed to keep you moving fast during app development. If you don't have Expo Go app installed on your iOS simulator then you should first install it before starting I am assuming that you would like to open the additional debug tools that are available with React Native. I was trying to have android emulator for expo app project. Also if you installed any 3rd party libs make sure that: If they have an expo plugin that you actually configured it in app. You now have two simulators open, make sure the one @Abe I built my project for the iOS simulator with the command eas build --profile simulator --platform ios, then I followed the instructions of downloading the tar. I had the problem when I upgraded my project from Expo SDK 49 to Expo SDK 51, so I erased module:react-native-dotenv from babel. Start a server for developing your app: npx expo start. I was able to resolve the issue by npx expo-doctor Check Expo config for common issues Check package. Running expo init [app_name] --npm. For example, here's the output from initial expo start -p 19001 + i Summary I'm using expo start -p to run two expo apps at the same time. After refactoring to use Expo environment variables, my project worked fine. › Press e to I had an issue which is (build failded) and after i entered following commands for my current workspace's terminal. I can start the expo server just fine, and I am able to send the app to Android. ignoreLogs(['Warning: ']); // Ignore log notification by message LogBox. Since it contains native codes, I have to create a development build for debugging. I removed all my simulators, but the name persists, I had search how to change the identificator, but I dont find results. when I click the button again, the same api call works. lang I am trying to run android simulator using following command in my react-native project's terminal. Hope this Helps! I was running expo build:ios and needed to clear the cached provisioning profile. Just run the following commands: # Kill current processes killall node -9 # Start React - Native react-native start # Run android react-native run-android or react-native run-ios Run "expo doctor" it will tell you if it doesn't like any of the versions. To open the full Xcode Learn about different techniques available to debug your Expo project. 1: (1) Double checked if "Xcode 11. You will now see the Open from Clipboard option on the top. 🎉 I've been facing the same problem for a month, however I finally found a solution that worked for me:. js and removed the library, but it turned out I also had babel-plugin-transform-inline-environment-variables, so I had to remove that too. Observed Behavior. Not sure. json and check the name passed into the getMainComponent function in MainActivity. I mean after getting this warning I realize that the normal way to disable debugging is by going to the developer menu. But if I create my application with react-native init <project>, this doesn't work. 3:19000 › Scan the QR code above with Expo Go (Android) or the Camera app (iOS) › Press a │ open Android › Press i │ open iOS simulator › Press w │ open web › Press r │ reload app › Press m │ toggle menu › Press d │ show developer tools › shift+d │ toggle auto opening developer tools on startup (disabled) › Press ? │ show all Application "main" has not been registered. OneSignal Expo sample app. zlyuprglpiinlarvfnrdvmkdjeydhqqpwafmhuvcwetxejlvqteryn