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react-nativeexpoios-simulator

Expo Opening on iOS crashes with Error: xcrun exited with non-zero code: 60 (domain=NSPOSIXErrorDomain, code=60)

Problem

I want to test/emulate a newly created default React Native App with Expo Go on an emulated iOS device.

However, upon pressing i and opening on iOS an error occurs:

Error: xcrun exited with non-zero code: 60 An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=60): Unable to boot the Simulator. launchd failed to respond. Underlying error (domain=com.apple.SimLaunchHostService.RequestError, code=4): Failed to start launchd_sim: could not bind to session, launchd_sim may have crashed or quit responding

Important Note

Yesterday it worked just fine. I changed nothing in the code or setup at all.

How to reproduce the error

In the Visual Studio Code Terminal press i to open Android Virtual Device emulation with Expo.

i

And the error occurs:

enter image description here

Question

How can this be fixed so that it works properly again?

Solution

  • Try to Delete Xcode Caches.

    Click on the top-left Apple Icon and open System Settings. Then:

    1. search for "Storage",
    2. click on "Storage",
    3. wait until the right side loads a "Developer" item
    4. double-click "Developer"
    5. Delete Xcode Caches

    Then restart the simulator.