[expo run:ios] Failed to build iOS project on iOS 15 (with EXPO_USE_CORE_SIM) #3871
Comments
There is not much we can do for this, Apple is wacky for removing all simulators. Leaving the issue open for now so it's easier for users to find. |
thanks @EvanBacon Haven't used expo in awhile and upgraded from Catalina -> Big Sur -> Monterey recently and was getting these errors with a fresh expo project (expo init ...)
after just following this simple advice,
it was resolved
|
This issue is stale because it has been open for 60 days with no activity. If there is no activity in the next 7 days, the issue will be closed. |
This issue was closed because it has been inactive for 7 days since being marked as stale. Please open a new issue if you believe you are encountering a related problem. |
@xyzst how do you manually open the simulator? |
Open spotlight search (command + space bar) ➡️ search for "Simulator" Might be able to open it from Xcode as well. |
Those who are still facing the issue, go to Xcode -> Settings -> Platforms, and then update or reinstall IOS, then things should work fine. |
Summary
With iOS 15 out, my computer updated, and now
expo run:ios
cannot find the default device. We check theSimulator.app
for the user's default device, but if the last device you opened was iOS 14, then it doesn't exist on the next run, it cannot be resolved.Solution
Ensure
EXPO_USE_CORE_SIM=0
as this system doesn't account for updates.Run
expo run:ios -d
and choose a device, or open Simulator.app to update the default device.Environment
Please specify your device/emulator/simulator platform, model and version
simulator
Error output
or
Reproducible demo or steps to reproduce from a blank project
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