While debugging a Swift application in Xcode, LLDB crashes with an assertion failure related to LLDBMemoryReader and pointer authentication. The issue occurs during normal debugging (e.g. inspecting variables or stack frames), and causes the debugger to become unusable. The error appears to be triggered inside the Swift language runtime reflection path in LLDB error: Assertion failed: (LLDBMemoryReader module to address map ran into pointer authentication mask!), function addModuleToAddressMap, file /AppleInternal/Library/BuildRoots/603ae698-b099-11ef-b64c-aabfac210453/Library/Caches/com.apple.xbs/Sources/lldb/llvm-project/lldb/source/Plugins/LanguageRuntime/Swift/LLDBMemoryReader.cpp, line 537 Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it): 0 LLDB 0x00000001240eb8f8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 40 1 LLDB 0x0000000123bbd0a8 lldb_private::lldb_assert(bool, char const*, char const*, char const*, unsigned int) + 184 2 LLDB 0x0000000123d5379d lldb_private::LLDBMemoryReader::addModuleToAddressMap(std::__1::shared_ptr<lldb_private::Module>, bool) + 477 3 LLDB 0x0000000123dbb733 lldb_private::SwiftLanguageRuntimeImpl::AddObjectFileToReflectionContext(std::__1::shared_ptr<lldb_private::Module>, llvm::SmallVector<llvm::StringRef, 1u>) + 1043 4 LLDB 0x0000000123dbc6de lldb_private::SwiftLanguageRuntimeImpl::AddModuleToReflectionContext(std::__1::shared_ptr<lldb_private::Module> const&) + 2766 5 LLDB 0x0000000123dc6d60 std::__1::__function::__func<lldb_private::SwiftLanguageRuntimeImpl::ProcessModulesToAdd()::$_0, std::__1::allocator<lldb_private::SwiftLanguageRuntimeImpl::ProcessModulesToAdd()::$_0>, bool (std::__1::shared_ptr<lldb_private::Module> const&)>::operator()(std::__1::shared_ptr<lldb_private::Module> const&) + 32 6 LLDB 0x00000001239bdad2 lldb_private::ModuleList::ForEach(std::__1::function<bool (std::__1::shared_ptr<lldb_private::Module> const&)> const&) const + 66 7 LLDB 0x0000000123dba72a lldb_private::SwiftLanguageRuntimeImpl::ProcessModulesToAdd() + 346 8 LLDB 0x0000000123dba0c9 lldb_private::SwiftLanguageRuntimeImpl::GetReflectionContext() + 57 9 LLDB 0x0000000123dd32e9 lldb_private::SwiftLanguageRuntimeImpl::BindGenericTypeParameters(lldb_private::StackFrame&, lldb_private::TypeSystemSwiftTypeRef&, lldb_private::ConstString) + 121 10 LLDB 0x0000000123dd3b8b lldb_private::SwiftLanguageRuntimeImpl::BindGenericTypeParameters(lldb_private::StackFrame&, lldb_private::CompilerType) + 347 11 LLDB 0x0000000123dc980d lldb_private::SwiftLanguageRuntimeImpl::GetSwiftRuntimeTypeInfo(lldb_private::CompilerType, lldb_private::ExecutionContextScope*, swift::reflection::TypeRef const**) + 621 12 LLDB 0x0000000123dcf9b1 lldb_private::SwiftLanguageRuntimeImpl::GetBitSize(lldb_private::CompilerType, lldb_private::ExecutionContextScope*) + 49 13 LLDB 0x0000000123dc332f lldb_private::SwiftLanguageRuntime::GetBitSize(lldb_private::CompilerType, lldb_private::ExecutionContextScope*) + 63 14 LLDB 0x0000000123fb0dd1 lldb_private::TypeSystemSwiftTypeRef::GetBitSize(void*, lldb_private::ExecutionContextScope*)::$_0::operator()() const + 689 15 LLDB 0x0000000123fb0aa8 lldb_private::TypeSystemSwiftTypeRef::GetBitSize(void*, lldb_private::ExecutionContextScope*) + 440 16 LLDB 0x0000000123aa9d61 lldb_private::CompilerType::GetBitSize(lldb_private::ExecutionContextScope*) const + 241 17 LLDB 0x0000000123aa9dc9 lldb_private::CompilerType::GetByteSize(lldb_private::ExecutionContextScope*) const + 9 18 LLDB 0x00000001239ef9e1 lldb_private::ValueObjectVariable::UpdateValue() + 241 19 LLDB 0x00000001239d9993 lldb_private::ValueObject::UpdateValueIfNeeded(bool) + 1011 20 LLDB 0x00000001239dac20 lldb_private::ValueObject::GetError() + 16 21 LLDB 0x0000000123868231 ValueImpl::GetSP(lldb_private::ProcessRunLock::ProcessRunLocker&, std::__1::unique_lock<std::__1::recursive_mutex>&, lldb_private::Status&) + 145 22 LLDB 0x000000012385cd28 lldb::SBValue::GetSP(ValueLocker&) const + 376 23 LLDB 0x000000012385dab9 lldb::SBValue::GetValueType() + 297 24 lldb-rpc-server 0x000000010f2f730a rpc_server::_ZN4lldb7SBValue12GetValueTypeEv::HandleRPCCall(rpc_common::Connection&, rpc_common::RPCStream&, rpc_common::RPCStream&) + 42 25 lldb-rpc-server 0x000000010f300749 rpc_common::Connection::PrivateHandleRPCPacket(rpc_common::RPCPacket&, rpc_common::RPCPacket&, bool&) + 1337 26 lldb-rpc-server 0x000000010f304434 Packets::ProcessPackets() + 564 27 lldb-rpc-server 0x000000010f30418a Packets::ReadThread() + 314 28 lldb-rpc-server 0x000000010f304049 Packets::RunReadThread(void*) + 9 29 libsystem_pthread.dylib 0x00007ff81847018b _pthread_start + 99 30 libsystem_pthread.dylib 0x00007ff81846bae3 thread_start + 15 Please file a bug report against lldb reporting this failure log, and as many details as possibleerror: Assertion failed: (LLDBMemoryReader module to address map ran into pointer authentication mask!), function addModuleToAddressMap, file /AppleInternal/Library/BuildRoots/603ae698-b099-11ef-b64c-aabfac210453/Library/Caches/com.apple.xbs/Sources/lldb/llvm-project/lldb/source/Plugins/LanguageRuntime/Swift/LLDBMemoryReader.cpp, line 537

Hello, I created a code in Xcode on my Mac. Once it was debugged I tried to run it on a simulator. Every time I run it on a simulator I get the white screen with the spinning red box. I'm very new at this and I am creating this app for my own child. As a teacher I couldn't stand the other math fact apps. You'll have to talk to me like an infant.

If you add a new string in your app (for example String(localized: "contact_support_message", defaultValue: "Please contact support")), then later you change that default value and rebuild, the string catalog updates to match as expected. But once that string is translated, changing the default value in code and rebuilding does not update the catalog. You seemingly have to go manually change the default value for English in the catalog to match the code (which marks the translation as Needs Review). Is there a better way? Or is there a way to determine what strings have default values in code that do not match the catalog values to see if any were missed as wording was tweaked over time?

Hello, Is there currently any workaround to install and run an iOS 14.x simulator on macOS 26? So far, I have checked Xcode 26.2, and the oldest simulator runtime available there appears to be iOS 15.0. I may be missing something, so I wanted to confirm if anyone has found a way to use iOS 14.x on this macOS version. Thank you.

Provisioning profile doesn't match the entitlements file's value for the com.apple.developer.nfc.hce.iso7816.select-identifier-prefixes entitlement. Although when we created the request, we added a list of AIDs which is the same as the list registered in Inof.plist <key>com.apple.developer.nfc.hce.iso7816.select-identifier-prefixes</key> <array> <string>XXXXXX</string> <string>XXXXXX</string> <string>XXXXXX</string> </array> How can we get a better message of diffs between them?

I saw this file among my project's check-in: .swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata Does this need to be added to source control? Or the .gitignore file (or equivalent)? Or are there some files within the ".swiftpm" that should be checked in, and others ignored?

Description I've encountered a consistent hang/freeze issue in SwiftUI applications when using nested LazyVStack containers with Accessibility Inspector (simulator) or VoiceOver (physical device) enabled. The application becomes completely unresponsive and must be force-quit. Importantly, this hang occurs in a minimal SwiftUI project with no third-party dependencies, suggesting this is a framework-level issue with the interaction between SwiftUI's lazy view lifecycle and the accessibility system. Reproduction Steps I've created a minimal reproduction project available here: https://github.com/pendo-io/SwiftUI_Hang_Reproduction To Reproduce: Create a SwiftUI view with the following nested LazyVStack structure: struct NestedLazyVStackView: View { @State private var outerSections: [Int] = [] @State private var innerRows: [Int: [Int]] = [:] var body: some View { ScrollView { LazyVStack(alignment: .leading, spacing: 24) { ForEach(outerSections, id: \.self) { section in VStack(alignment: .leading, spacing: 8) { Text("Section #\(section)") // Nested LazyVStack LazyVStack(alignment: .leading, spacing: 2) { ForEach(innerRows[section] ?? [], id: \.self) { row in Text("Section #\(section) - Row #\(row)") .onAppear { // Load more data when row appears loadMoreInner(section: section) } } } } .onAppear { // Load more sections when section appears loadMoreOuter() } } } } } } Enable Accessibility Inspector in iOS Simulator: Xcode → Open Developer Tool → Accessibility Inspector Select your running simulator Enable Inspection mode (eye icon) Navigate to the view and start scrolling Result: The application hangs and becomes unresponsive within a few seconds of scrolling Expected Behavior The application should remain responsive when Accessibility Inspector or VoiceOver is enabled, allowing users to scroll through nested lazy containers without freezing. Actual Behavior The application freezes/hangs completely CPU usage may spike The app must be force-quit to recover The hang occurs consistently and is reproducible Workaround 1: Replace inner LazyVStack with VStack LazyVStack { ForEach(...) { section in VStack { // ← Changed from LazyVStack ForEach(...) { row in ... } } } } Workaround 2: Embed in TabView TabView { NavigationStack { NestedLazyVStackView() // ← Same nested structure, but no hang } .tabItem { ... } } Interestingly, wrapping the entire navigation stack in a TabView prevents the hang entirely, even with the nested LazyVStack structure intact. Questions for Apple Is there a known issue with nested LazyVStack containers and accessibility traversal? Why does wrapping the view in a TabView prevent the hang? Are there recommended patterns for using nested lazy containers with accessibility support? Is this a timing issue, a deadlock, or an infinite loop in the accessibility system? Why that happens? Reproduction Project A complete, minimal reproduction project is available at: https://github.com/pendo-io/SwiftUI_Hang_Reproduction

When using Team “57AWJ345M2” and setting the project’s Bundle ID to “com.marsgame.fg2”, enabling the iCloud capability and checking Key-Value Storage results in the following error:"Provisioning profile "iOS Team Provisioning Profile: com.marsgame.fg2" doesn't match the entitlements file's value for the com.apple.developer.ubiquity-kvstore-identifier entitlement." This issue does not occur if we use a different Team or a different Bundle ID. The project was transferred from another Team to this new Team, and everything worked fine before the transfer. Additionally, we have tried creating a brand new project, but as long as we use this same Team and this same Bundle ID, the error still occurs when enabling Key-Value Storage.

I've been developing an advanced gps tracking tool and had over 500 miles of data collected in the local storage of my test app. Recently, I used the XcodePreviews app to use my device to test UI updates as I was making them. To my surprise, doing this cleared all the data from my actual test app. Has this happened to anyone else before? Is there a way to recover my lost data? Why does this happen? I've verified that this is always clearing my app data. I tested by adding data to my actual test app then launching XcodePreviews - only to find that my app data has been cleared.

I’m running macOS 15.7 with Xcode 26.2, and I’m trying to learn the basics of AppKit. I’m fully aware that AppKit is considered a legacy / “old” technology and that Apple clearly does not promote it out of the box anymore. This is especially visible in recent versions of Xcode, where you can no longer create a macOS App template without Storyboards or SwiftUI. That said, AppKit is still widely used under the hood, so I think it’s reasonable to at least understand its fundamentals. Here’s the problem I’m facing. I create a standard macOS App project using the Xcode template (AppKit App Delegate). Then I: delete Main.storyboard remove all storyboard references from Info.plist try to create the window manually in applicationDidFinishLaunching At this point, the project builds, but the app either: does not show any window, or behaves as if it were not a proper GUI app While debugging, it looks like Xcode / Swift is treating my target more like a dylib / wrapper than a normal .app bundle (at least judging by runtime behavior and the lack of a proper AppKit lifecycle). While searching for answers, I found this article: https://ashidiqi.com/blog/how-to-setup-xcode-project-programmatically-with-appkit/ The author claims that in this scenario you must not use the @main attribute and instead need a main.swift file that manually calls NSApplicationMain. However, the article also mentions that Xcode shows the error: 'main' attribute cannot be used in a module that contains top-level code The confusing part is that I do not have any top-level code in my project when using @main. At the same time, when I ask an LLM for clarification, it tells me that: @main does not require a storyboard removing a storyboard does not force you to switch to main.swift @main should work fine for a fully programmatic AppKit app So I’m left with two concrete questions: What is the correct, modern answer here? When building a fully programmatic AppKit app (no storyboard, no SwiftUI), do you actually need main.swift, or is @main still fully supported and correct? Is there any supported or recommended way in modern Xcode to get a “clean” AppKit app template without a storyboard? Either via project settings, templates, or some documented workflow — without having to fight the build system or end up with a half-broken target. I’m not trying to fight Apple’s direction here — I just want to understand the correct way to work with AppKit in 2025, even if it’s not the preferred path anymore. Thanks in advance for any clarification.

**The issue - ** I can't add "In-App Purchase" as a capability in xCode to my iMessage extension target. **What I have tried - ** I have a valid provisioning profile with In-App Purchases enabled. I have agreed to all agreements in the apple developer console. I have an apple developer membership. I have added an active bank account to my apple developer account. **How the issue came to be - ** I am trying to develop a "stand-alone" iMessage app (no underlying app) which as I understand it is different from a "iMessage extension app"(this has an underlying app that it syncs/interacts with). To do this, I updated my mac to latest OS (Tahoe 26.2) and xCode as well. I then began by using the "iMessage App" template in xCode. And BAM right off the bat, I could not get the "In-App Purchases" capability to show up when I select my iMessage extension target. To be clear, when you make the template, you get 2 targets, one is just a regular "app" target and the other is the iMessage extension target. Now I am not sure if I even need the "app" target if I'm trying for a standalone iMessage app, but I figured it wouldn't be causing this issue as I have tried deleting that target and nothing changed. **Replicating the issue - ** I have tried creating other "iMessage App"'s off of the template to see if maybe I just got it wrong or misconfigured something in my development, but it seems like when you start one of those templates, you immediately are not able to see the "In-App Purchase" capability. **Help! - ** I know this to be possible as there is another (very popular) iMessage extension out on the app store right now called "Game Pigeon" which is also provided by an individual just like I am trying to do, and he uses In App Purchases in his iMessage app. Any help on this would be GREATLY appreciated. Please reach out to me if you need/want additional info or could/want to schedule a meeting.

Without this, I can't install/open Unreal Engine on my iMac OS 26.2 Tahoe. I can't even download the Metal Toolchain in Xcode-Settings-Components. It fails every time. when I try to open Unreal Engine, it says this: Xcode Metal Compiler error: error: error: cannot execute tool 'metal' due to missing Metal Toolchain; use: xcodebuild -downloadComponent MetalToolchain But every time I try to download Metal Toolchain in terminal, it says this: xcodebuild: error: Failed fetching catalog for assetType (com.apple.MobileAsset.MetalToolchain), serverParameters ({ RequestedBuild = 17C48; }) % sudo xcode-select --reset xcrun -f metallib Password: xcrun: error: sh -c '/Applications/Xcode.app/Contents/Developer/usr/bin/xcodebuild -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk -find metallib 2> /dev/null' failed with exit code 17664: (null) (errno=No such file or directory) xcrun: error: unable to find utility "metallib", not a developer tool or in PATH

I downloaded package, I can see it in Package Dependencies tab, [swift-collections | https://github.com/apple/swift-collections.git | Up to Next Major Version] — looks OK. But (quite strange): import Collections //🛑 No such module 'Collections' typealias Objects = OrderedSet<anyHashable> // No error I took Collection word from a list or typed — no difference. if I remove import Collections there is no OrderedSet anymore (of course) Can't compile. Cleaned build folder, restarted Xcode... What could be wrong with it? Any ideas?

I am trying to create a new Xcode project. I am unable to open or create a new project, and am getting the error message "You don't have permission to save the file... in the folder..." and "Authentication failed because the credentials were rejected". I have confirmed I am signed in with the correct Apple ID. I have also confirmed through Xcode account settings, my account is in my organisation team, and I have an Apple Development Certificate and an Apple Distribution Certificate, both created 20/11/2025 (no status listed for either). Could someone please help?

Hi, I'm trying to figure out what is true here - if I am not in the correct forum please direct me :-) A. It is not possible to test a QR code scan that contains a deeplink into my iOS app from an XCoode build test run. In other words, The build must be published to Test Flight for the iOS's QR code scan sub-system to be able to process the deeplink into my app? If I am wrong about this, it sure would help with testing to be able to test directly from the local XCode build test. If so, can someone point me in the direction of what I would need to do for that? Thanks for your input either way!

I'm implementing the in app provisioning in a financial project. I got my entitlement identifier, I'm also implementing the wallet extension but I have the problem with Xcode. Domain: IXUserPresentableErrorDomain Code: 1 ... NSExtensionPointIdentifier key in the NSExtension dictionary in its Info.plist that does not correspond to a known extension point. But I'm not sure what does this mean, I reviewed the info.plist form the project and the wallet extension

I'm new to Xcode. I just downloaded version 26.2 and I'm working on an iMac with macOS Sequoia 15.7.3. I'm created a playground with some very simple code and it crashes when I click live view. I tried looking all over online for a solution and nothing has worked. I tried uninstalling and reinstalling Xcode and still have the same problem. When running the code with the console open I do see the following error. objc[19786]: Class _TtC16AppIntentSchemas16AppIntentDomains is implemented in both /System/Library/PrivateFrameworks/AppIntentSchemas.framework/Versions/A/AppIntentSchemas (0x2840a4c28) and /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/AppIntentSchemas.framework/Versions/A/AppIntentSchemas (0x3276359e8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed. I went to the first folder mentioned in the error /System/Library/PrivateFrameworks/AppIntentSchemas.framework/Versions/A/AppIntentSchemas but I found no file called AppIntentSchemas. Here is the code I'm trying to run. import UIKit import PlaygroundSupport let view = UIView(frame: CGRect(x: 0, y: 0, width: 200, height: 200)) view.backgroundColor = .red UIView.animate(withDuration: 15.0) { view.backgroundColor = .blue } PlaygroundPage.current.liveView = view

Dear Apple engineers: My previous project was successfully compiled using Xcode 16.2. Now, I need to adapt it to Xcode 26. I know that the linker in Xcode 26 has undergone significant changes. So, in the 'Other Linker Flags' configuration of the Build Settings in the project engineering of Xcode 26.2, I deleted '-ld64' and added '-Xlinker -dead_strip -Xlinker -dead_strip -allow_dead_duplicates' to adapt to the new linker of Xcode 26. After the modification, when I compiled my project engineering using Xcode 26.2 compiler, I encountered a new linker error. The error log is attached. Regarding this error, how should we solve it? Thank you. XCode26.2BuildErrorLog.txt

Xcore 26.2 run on newly installed macOS 15.7.3 (24G419) crashes when attempting to build assets backtrace

I have ios UI tests that are build with command xcodebuild -workspace ... -scheme ... -configuration ... -derivedDataPath ... -destination ... -testPlan ... build-for-testing Then I run them with xcodebuild -destination ... -resultBundlePath ... -parallel-testing-worker-count ... -xctestrun ... test-without-building I also have following settings in testplan "maximumTestRepetitions" : 3, "testRepetitionMode" : "retryOnFailure", With xcode 16.4 tests were retried on failure up to 3 times, but migrating to xcode 26.2 seems to change this behavior and tests are no longer retried. Is it expected behaviour and I should manually add params like -test-iterations 3 -retry-tests-on-failure into xcodebuild test-without-building command? Here is xcresult - https://drive.google.com/file/d/1xHgiZnIK_lptDSUf-fCyEnT9zYubZlCf/view?usp=sharing And testrun file -https://drive.google.com/file/d/1aBi2sTjy8zFYtgYn1KA60T8gwD_OnBCF/view?usp=sharing