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LLDB crash

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Xcode crashes on launch
I have Mac mini intel, and updated top Sequia 15.7.2 and updated Xcode to 26 and now it crashes on launch. I uninstalled and reinstalled and still crashes. I uninstalled and installed Xcode 16.4 and that crashes on launch also. I've looked all over for help but cannot find anything. Can anyone please help me with this?
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Dec ’25
Reply to application(_:didFinishLaunchingWithOptions:) not called on MDM iPads after overnight idle — app resumes without cold start
Logs include: ... The process ID (PID) First off, thank you and congratulations on having the foresight to include that. I've long recommended that developers include that in their logging since, from past experience, I've seen FAR too many weird problems that were not in fact weird once it was clear that the logging was coming from the same or different process. The PID remains the same Then this: Terminate it manually via the multitasking app switcher. ...did not happen. Per standard Unix semantics, process ID's are uniquely assigned at creation. PIDs are reused if/when the process ID space is exhausted and the wraps back around; however, they're a 32-bit value (so exhausting the space isn't trivial) and, more importantly, system process creation is chaotic enough that getting the same PID doesn't really happen. It's difficult to do INTENTIONALLY[1], so this isn't something that’s going to happen by accident. [1] There are a class of security attacks that rely on getting the same PID as a previously/recentl
Dec ’25
Swift Data Undo
Trying to support undo & redo in an app that utilizes Swift Data and as with anything other than provided simplistic Apple demo examples the experience is not great. The problem: Im trying to build functionality that allows users to add items to an item group, where item and item group have a many-to-many relationship e.g. item group can hold many items and items can appear in multiple groups. When trying to do so with relatively simple setup of either adding or removing item group from items relationship array, I am pretty consistently met with a hard crash after performing undo & redo. Sometimes it works the first few undo & redos but 95% of the time would crash on the first one. Could not cast value of type 'Swift.Optional' (0x20a676be0) to 'Swift.Array' (0x207a2bc08). Where CodableStructModel is a Codable Value type inside Item. Adding and removing this relationship should be undoable & redoable as typical for Mac interaction and is supported by SwiftData by default, mean
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Dec ’25
Reply to App Startup with Debugger in Xcode 26 is slow
Thanks for sharing @Alexander Vasenin! @guillaume-amo asked: This is good news, but why is an update of iOS required? You can think of LLDB as a client-server architecture. In Xcode, your use of the debugger is the client side of the infrastructure involved in enabling the debugger. On the other side of the infrastructure is a server process (called debugserver) that the client is talking to. It's this component that is receiving the debugging commands from the client, managing the Mach task port that allows for a debugger to attach to a running process to inspect and manipulate its state, and sending all of the information and commands back and forth to the LLDB client in Xcode for you to view. While on iOS, the debug server happens to be on a different device than where the debugger client is running, the same architecture is at play if you are working on a macOS app. If you are debugging on the same Mac as where Xcode is running, the client and server components just so happen to be runni
Dec ’25
Reply to My Notifications Message Extension doesn't seem to run after distributing my app via Enterprise IPA
There are indeed many reasons the extension may seem to not run, and you will need to debug this. Among the many causes, the reasons the NSE fails to modify the message could be: it crashes at launch it crashes while modifying or exits early without setting the content and calling contentHandler() it goes over the memory and time limits and is terminated by the system it is trying to access on-disk objects that are not available (perhaps due to security settings) and fails the reentrancy of the NSE causes problems if any global variables/singletons/shared objects are not designed accordingly that the same NSE process could be used for multiple notifications it is unable to be started by the system for some reason (the Console log will show those issues) the extension is not configured or built correctly in your application bundle If you narrow down the issue, we would be able to give some more useful pointers.
Dec ’25
I need help with my TestFlight crash report. I have already symbolicated my crash report but I don't see an error.
My application always crashes at the same position when I open it on my iPad Air. It doesn't crash in debug mode which makes it very difficult for me to find the issue. My crash report from TestFlight: Exception Subtype: KERN_INVALID_ADDRESS at 0x000000016d5f26f0 Exception Codes: 0x0000000000000001, 0x000000016d5f26f0 VM Region Info: 0x16d5f26f0 is not in any region. Bytes after previous region: 546219761 Bytes before following region: 399632 REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL MALLOC_LARGE 14c000000-14cd08000 [ 13.0M] rw-/rwx SM=PRV ---> GAP OF 0x2094c000 BYTES Stack Guard 16d654000-16d658000 [ 16K] ---/rwx SM=NUL Termination Reason: SIGNAL 4 Illegal instruction: 4 Terminating Process: ProjectiOS [745] Triggered by Thread: 0 Thread 0 name: Thread 0 name: Thread 0 Crashed: 0 ProjectiOS 0x0000000107abf3b4 0x1026ac000 + 88159156 1 ProjectiOS 0x000000010e7d3be4 0x1026ac000 + 202537956 2 ProjectiOS 0x000000010e96c45c 0x1026ac000 + 204211292 3 Projec
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Dec ’25
Reply to DeclaredAgeRange framework new cases and properties cause runtime crash with missing symbol
@DTS Engineer Tested with Xcode 26.2 downloaded from the App Store, against iPhone 17 Pro running 26.1 (23B85) Xcode Version 26.2 (17C52) So this property wasn't tested. I haven't touched PermissionKit yet so I wasn't actively testing this, however my wrapper library code still fails for this property too and causes a runtime crash due to symbol not found. AgeRangeService.ParentalControls.significantAppChangeApprovalRequired 55C0A89C-7970-4C69-B5D3-1E6873C6EF2B-diagnostic.json Here is some offending code, assumes iOS 26 minimum target: extension ParentalControls { public init(activeParentalControls: AgeRangeService.ParentalControls) { var value: Int = 0 if activeParentalControls.contains(.communicationLimits) { value |= ParentalControls.communicationLimits.rawValue } if activeParentalControls.contains(.significantAppChangeApprovalRequired) { value |= ParentalControls.significantAppChangeApprovalRequired.rawValue } self.rawValue = value } }
Dec ’25
Tapping on ShareLink crashes the app
Overview Tapping on ShareLink crashes the app when ShareLink is added in the toolbar with the placement of secondaryAction Feedback FB21337385 Note: Apple engineers please priorities this is a blocker and affects production apps and prevents us from going live. Environment Xcode: 26.2 (17C52) iOS: 26.2 iPadOS: 26.2 Reproduce Able to reproduce 100% both on Simulator and Device Isolation of the crash The crash happens only when the ShareLink is used with the placement .secondaryAction The crash doesn't 'happen when the ShareLink is used with the placement .primaryAction Code import SwiftUI struct ContentView: View { var body: some View { NavigationStack { Text(Hello, world!) .toolbar { ToolbarItem(placement: .primaryAction) { Button(Dummy) { print(dummy) } } // Tapping on share button will cause it to crash // Crash only happens when the ShareLink is used with placement .secondaryAction // It doesn't crash when placement is primaryAction ToolbarItem
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Dec ’25
Reply to XCode crashing in VIM Mode while deleting the complete line with double tap of "d"
I've noticed this also happening with yy yank-line. In a playground, if I yy or dd a few times in quick succession, it crashes pretty consistently. Version: 26.1.1 (24455) Build Info: IDEApplication-24455000000000000~2 (17B100) Code Type: ARM-64 (Native) Role: Foreground Parent Process: launchd [1] Coalition: com.apple.dt.Xcode [3593] Hardware Model: MacBookAir10,1 OS Version: macOS 26.1 (25B78) Release Type: User Crash Reporter Key: 834538A1-954B-4B20-397E-404B2B357970 Incident Identifier: 72206D25-CA6F-4A1A-9130-473D798C7833
Dec ’25
Reply to VoIP Push Notifications Not Delivered in Background/Killed State (Using AppDelegate)
Core Problem: VoIP push notifications are not delivered to the application when it is in the background or terminated. After reviewing existing discussions on the forum, I concluded that the cause might be related to CallKit not having enough time to register. Yes, that's sort of correct. I think root of the problem is actually here: private let voipRegistry = PKPushRegistry(queue: .main) private var provider: CXProvider? ...and is tied to the dynamic of how static object initialization occurs. Basically, your PKPushRegistry object is going to be created IMMEDIATELY after your AppDelegate object is created and before basically any normal app methods are called, including didFinishLaunchingWithOptions. I'm not sure how the full process plays out from there, but I think the net result is that you're losing the initial push because of the time gap between PKPushRegistry's creation and when didFinishLaunchingWithOptions is called and the rest of your initialization completes. One thing to note here is that you ca
Dec ’25
Reply to DeclaredAgeRange framework new cases and properties cause runtime crash with missing symbol
The crash issue that @edorphy reported in FB21121092 is resolved when you build the app with the released Xcode 26.2 version that came out today, build number 17C52. This version is not the same build as the Xcode 16.2 Release Candidate, so make sure to update to the final release version. @edorphy, had a follow-up statement to me for a different but related issue: you or others may have already seen this one but just in case you haven't: FB21240249 - DeclaredAgeRange: DeclaredAgeRangeAction symbol unavailable on macOS catalyst apps causing crash - documentation says otherwise I appreciate that! I personally had not seen this report, though others within Apple have. We're looking in to it. — Ed Ford,  DTS Engineer
Dec ’25
Reply to We attempted to run a burn-in test while connected to our MacBook Pro M4 Max, but this crashed about 10 minutes into testing.
We attempted to run a burn-in test while connected to our MacBook Pro M4 Max, but this crashed about 10 minutes into testing. We tried to run a 2-hour burn-in on the M4 Max host while charging the battery from below 5%, running six bus-powered drives (via ATTO/Black Magic/IOmeter), hitting the RJ45 port for 2.5Gbps (via JPerf), and streaming at least 4K60Hz video content to two displays; however, the M4 Max crashed in 20minutes. If you haven't already, please file a bug on this and post the bug number back here. In the bug, please attach full panic logs as well as a sysdiagnose from the machine that panic-ed. One comment on the log picture you posted. That particular panic message (Halt/Restart Timed Out) comes from a very specific point, which you can actually see here: xnu/iokit/Kernel/IOPlatformExpert.cpp: ... IOShutdownNotificationsTimedOut( thread_call_param_t p0, thread_call_param_t p1) { #if !defined(__x86_64__) /* 30 seconds has elapsed - panic */ panic(Halt/Restart Timed Out); ... C
Dec ’25