iOS Stimulator Boot Error

The error, showing at the bottom, is likely happening because there’s a problem with the iOS Simulator on your machine. The xcrun utility is a tool provided by Apple for developers to interact with iOS SDKs and simulators. It appears that xcrun is unable to boot your iOS simulator due to an issue with the runtime bundle.

There are a few things that we could try to fix the issue. In the current case, I need to start iOS Simulator again in order to allow the expo to start the iOS Simulator.

  1. Check Xcode Installation: Ensure that Xcode is properly installed on your machine. xcrun is a part of Xcode, and if Xcode is not properly installed, it might lead to this issue. You can download or update Xcode from the Mac App Store.
  2. Reset iOS Simulator: Sometimes, issues with the iOS Simulator can be fixed by resetting it. You can do this by opening the iOS Simulator and then going to the menu bar. Click on “Device” -> “Erase All Content and Settings”.
  3. Update Command Line Tools: This error might also occur if your Xcode Command Line Tools are outdated. You can update them by opening Xcode, navigating to “Preferences” -> “Locations”, and then select the latest version in the “Command Line Tools” dropdown.
  4. Clean Cache: Cleaning your project and npm cache could also help. You can do this by running the following commands in your terminal:
Starting project at /Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main
Starting Metro Bundler
Error: xcrun exited with non-zero code: 2
An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=2):
Unable to boot device because we cannot determine the runtime bundle.
No such file or directory
Error: xcrun exited with non-zero code: 2
    at ChildProcess.completionListener (/Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main/node_modules/@expo/spawn-async/build/spawnAsync.js:52:23)
    at Object.onceWrapper (node:events:628:26)
    at ChildProcess.emit (node:events:513:28)
    at maybeClose (node:internal/child_process:1091:16)
    at ChildProcess._handle.onexit (node:internal/child_process:302:5)
    at Object.spawnAsync [as default] (/Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main/node_modules/@expo/spawn-async/build/spawnAsync.js:17:21)
    at Object.xcrunAsync (/Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main/node_modules/@expo/cli/build/src/start/platforms/ios/xcrun.js:18:46)
    at simctlAsync (/Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main/node_modules/@expo/cli/build/src/start/platforms/ios/simctl.js:233:24)
    at bootDeviceAsync (/Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main/node_modules/@expo/cli/build/src/start/platforms/ios/simctl.js:166:15)
    at Object.bootAsync (/Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main/node_modules/@expo/cli/build/src/start/platforms/ios/simctl.js:143:11)
    at action (/Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main/node_modules/@expo/cli/build/src/start/platforms/ios/AppleDeviceManager.js:73:31)
    at Object.waitForActionAsync (/Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main/node_modules/@expo/cli/build/src/utils/delay.js:18:26)
    at ensureSimulatorOpenAsync (/Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main/node_modules/@expo/cli/build/src/start/platforms/ios/AppleDeviceManager.js:69:44)
    at async Object.resolveAsync [as resolveDeviceAsync] (/Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main/node_modules/@expo/cli/build/src/start/platforms/ios/AppleDeviceManager.js:98:24)
    at async ApplePlatformManager.openProjectInExpoGoAsync (/Users/YourAccount/Downloads/Fast-Food-App-React-Native-UI-main/node_modules/@expo/cli/build/src/start/platforms/PlatformManager.js:57:31)