iOS simulator triggers lots of "*** quit unexpectedly" alerts

Question

Created Jan ’24

Replies 4

Boosts 4

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Everytime when iOS simulator is launched I het a lot of repeated "*** quit unexpectedly" alerts. Where "***" is a mix of "managedappdistributiond","healthappd", and "findmylocated"

Even after the simulator is launched I still het random "*** quit unexpectedly" alerts. Very annoying because the alerts deactivates the active window

This is on an MacBook Pro M3 Max,, Xcode 15.2, Sonoma 14.2.1, it also happens with Xcode 15.1 A co developer (MacBook Pro M1 Max,Xcode 15.2, Sonoma 14.2.1) does not have the issue

Any idea how I can prevent this from happening?

Update Every mentioned service crash happens in libswiftCore.dylib at 0x1929f3938 assertionFailure(:_:file:line:flags:) + 248

Boost

Answer 1

bitsflew OP

Jan ’24

Similar issue report here: Very annoying warnings using XCode and SwiftUI

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Answer 2

sgasparini OP

Feb ’24

I tried to uninstall completely Xcode and I ahem a cascade of crashes of managedappdistributiond findmylocated as soon as I start the simulator.

It makes testing almost impossible as those crash alert doesn't cease really to be produced. It happens even if my application is not launched on my iOS simulator.

It happens on my iMac 27" Intel and not on my MacBook Pro M1.

Xcode 15.2, Mac OS 14.3.1, simulator started with iOS 17.2

thread in managedappdistributiond and findmylocated crash due EXC_BAD_INSTRUCTION (SIGILL) in

Thread 1 Crashed: 0 libswiftCore.dylib 0x10e157442 assertionFailure(:_:file:line:flags:) + 354 1 managedappdistributiond 0x100cca4c7 0x100c01000 + 824519

Thread 4 Crashed: 0 libswiftCore.dylib 0x10e4d8442 assertionFailure(:_:file:line:flags:) + 354 1 FindMyMessaging 0x10cb6231a 0x10cb5c000 + 25370

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Answer 3

hkursatsimsek OP

Feb ’24

The same problem continues for me. I tried deleting DerivedData and completely uninstalling and reinstalling Xcode but it doesn't work. While developing, I keep getting the errors I shared below over and over again.

I was also experiencing this problem when using Xcode 14. I constantly send error reports to Apple when an error occurs, but I see that it is not resolved in Xcode 15 either.

How can I fix these errors?

I am using a Macbook Pro with M2 Pro processor. My macOS version is Sonoma 14.2.1. I am using Xcode 15.2.

1

Answer 4

yega OP

Apr ’24

This is (sorta) happening to me on my 2019 Intel MBP. I don't get alerts but I see it in Console crash report logs.

Screenshot 2024-04-07 at 5.33.02 AM.png

Happens when my app crashes with:

Exception Type:  EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Termination Reason: SIGNAL 4 Illegal instruction: 4
Terminating Process: exc handler [34765]

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