I'm getting EXC_BAD_ACCESS (code=2, address=0x7ff8a6e2fcce) when launching my app on the simulator with Address or Thread Sanitizer enabled. I'm running Xcode 16.3 (16E140) on macOS Sequoia 15.4.1 (24E263). The call stack looks like the following. On the device, there is no crash, but this message is printed to the console: malloc: nano zone abandoned due to inability to reserve vm space. (Not sure if it's related.) Does anybody know what is causing the crash? Thread 1 #0 0x0000000103361f5b in __sanitizer::MemoryMappingLayout::Next () #1 0x000000010336034b in __sanitizer::MemoryRangeIsAvailable () #2 0x000000010334db77 in __asan::InitializeShadowMemory () #3 0x0000000103395069 in __asan::AsanInitInternal() (.cold.1) () #4 0x000000010334d352 in __asan::AsanInitInternal () #5 0x0000000103394f65 in __asan_init.cold.1 () #6 0x000000010334d325 in __asan::AsanInitFromRtl () #7 0x0000000103343289 in wrap_malloc_default_zone () #8 0x00007ff801b15f86 in __malloc_init () #9 0x00007ffa160080be in libSystem_initializer () #10 0x000000010306eb11 in invocation function for block in dyld4::Loader::findAndRunAllInitializers(dyld4::RuntimeState&) const () #11 0x000000010308f364 in invocation function for block in dyld3::MachOAnalyzer::forEachInitializer(Diagnostics&, dyld3::MachOAnalyzer::VMAddrConverter const&, void (unsigned int) block_pointer, void const*) const () #12 0x00000001030aad7c in invocation function for block in mach_o::Header::forEachSection(void (mach_o::Header::SectionInfo const&, bool&) block_pointer) const () #13 0x00000001030a83c9 in mach_o::Header::forEachLoadCommand () #14 0x00000001030a98c8 in mach_o::Header::forEachSection () #15 0x000000010308ef62 in dyld3::MachOAnalyzer::forEachInitializer () #16 0x000000010306e9ac in dyld4::Loader::findAndRunAllInitializers () #17 0x0000000103074da1 in dyld4::JustInTimeLoader::runInitializers () #18 0x00000001030807c5 in dyld4::APIs::runAllInitializersForMain () #19 0x000000010305efac in dyld4::prepare () #20 0x000000010305e36e in _dyld_sim_prepare () #21 0x000000010993b2a0 in dyld4::prepareSim () #22 0x0000000109939963 in dyld4::prepare () #23 0x000000010993981f in dyld4::start(dyld4::KernelArgs*, void*, void*)::$_0::operator()() const () #24 0x00000001099394da in start ()

Cannot select individual view in selectable mode in Xcode preview, it only show the whole blue device border.

I'm implementing the 'new' QLThumbnailProvider for our macOS app... So I just created the skeleton from Xcode, added our QLSupportedContentTypes in Info.plist, and have the skeleton code like below: import QuickLookThumbnailing class ThumbnailProvider: QLThumbnailProvider { override func provideThumbnail(for request: QLFileThumbnailRequest, _ handler: @escaping (QLThumbnailReply?, Error?) -> Void) { // cannot trigger break point here! } I understand I should test the Thumbnail Extension by using: $ qlmanage -t my_file.ext Testing Quick Look thumbnails with files: my_file.ext But I don't know what process to attach to in the Xcode debugger... a bit clueless... I've skimmed relevant parts of https://developer.apple.com/videos/play/wwdc2019/719, but there is no real debug tips... Does anyone know if it is possible to debug with Xcode or not? And if possible, then how? 😅

We are getting following error in xcode cloud "The step invocation hit a user timeout. The xcodebuild archive invocation timed out. No activity has been detected on stdout, stderr or the result bundle in 30 minutes" We are using following env to create a build. Xcode: 14.2 Macos: Ventura 13.2.1 We didn't face any issue in Ventura 13.2.0 and we are seeing this issue in our first build using ventura 13.2.1. The difference I see between successful and failure build, I don't see "Discovering Swift tasks after 'Compiling { list of swift file " in a failed build. I see compiling { list of swift file } and end of the compilation, the build is failing.

Whenever I try to use SwiftUI previews, the preview fails with a CouldNotLoadInputObjectFile error like this: == PREVIEW UPDATE ERROR: FailedToLaunchAppError: Failed to launch com.my-company.Test | ================================== | | [Remote] CouldNotLoadInputObjectFile: Could not load object file during preview: /Users/me/Library/Developer/Xcode/DerivedData/Test-dzmdthicvcbuwkawncuacsomcdcd/Build/Intermediates.noindex/Test.build/Debug-iphonesimulator/Test.build/Objects-normal/arm64/TestApp.o | | | | path: /Users/me/Library/Developer/Xcode/DerivedData/Test-dzmdthicvcbuwkawncuacsomcdcd/Build/Intermediates.noindex/Test.build/Debug-iphonesimulator/Test.build/Objects-normal/arm64/TestApp.o | | | | ================================== | | | [Remote] XOJITError | | | | | | XOJITError: '/Users/me/Library/Developer/Xcode/DerivedData/Test-dzmdthicvcbuwkawncuacsomcdcd/Build/Intermediates.noindex/Test.build/Debug-iphonesimulator/Test.build/Objects-normal/arm64/TestApp.o': No such file or directory It appears that the preview process cannot find the compiled .o files. However, when I check in Finder, the files do exist and normally running the app works fine. It is noteworthy that this is independent of the XCode project or view I try to preview. It is a global issue on my system. Previews not even work when I create a blank new SwiftUI project in XCode. I tried deleting all caches, derived data, preview caches etc. But without any effect. I have this in XCode 16.3 as well as in 16.4 RC. On macOS Sequoia 15.4.1 on a MacBook Air M4. Does anybody have an idea what might be causing this?

Hi there, I successfully created an AppIntent for our app, and when I had it in the same target as our main app it showed up fine in the shortcuts app. Then I realized that many of the new System Control widgets introduced in iOS 18 (e.g. lockscreen, control center) live in the widget extension target, but they also need to reference that same AppIntent. So to fix this, I thought I'd migrate out the code into it's own SPM package that both the WidgetExtension and the Main App processes can reference. However, after doing that and rebuilding, the intent no longer shows up in the Shortcuts app. Furthermore, my AppShortcutsProvider class now has this error when trying to define the list of appShortcuts: App Intent <name> should be in the same target as AppShortcutsProvider Is this intended, and if so, how do we reference the same AppIntent across multiple targets?

Is anybody able to save the autocreated testplan successfully with Xcode 16.3? I get a crash no matter what (different filenames, locations, machines, ...). Now created a template project: same thing. Xcode Version 16.3 (16E140) on macOS 15.5 (24F74) Known issue, or am I holding it wrong?

We've 10 CoreML models in our app, each encrypted with a separate key generated in XCode. After opening and closing the app 6-7 times, the app crashes at model initialization with error: 2021-04-21 13:52:47.711729+0300 MyApp[95443:7341643] Fatal error: 'try!' expression unexpectedly raised an error: Error Domain=com.apple.CoreML Code=9 "Failed to generate key request for 08494FB2-B070-440F-A8A5-CBD0823A258E with error: -42905" UserInfo={NSLocalizedDescription=Failed to generate key request for 08494FB2-B070-440F-A8A5-CBD0823A258E with error: -42905}: file MyApp/Model.swift, line 43 Looks like iPhone is blocking the app for suspicious behavior and the app fails to decrypt the model. We noticed that after ~10 hours the app is unlocked, it successfully decrypts and initializes the model. Opening and closing the app many times in a short period of time is indeed unnatural, but the most important question is how to avoid blocking? Would Apple block the app if a user opens and closes it 10 times during a day? How does the number of models in the app affect probability that the app will be blocked? Thanks!

Hi! A couple of months ago my app was archiving just fine. Since an xcode update the build fails. Here is what shows at the end of the log. Thank you in advance for any help! Run custom shell script 'Run Script' Failed to package [project folder] Command PhaseScriptExecution failed with a nonzero exit code

I strugge to make the app icon appear in the simulator and on a physical test device. Currently only the placeholder icon is shown. Using Xcode 15.4 and visionOS 1.2 If configured which app icon to use under Targets/[my app]/General: And in assets theres my visionOS app icon: Why is the app icon not used? Am I missing something or is this an Xcode bug?

I am trying to setup a unversal linking for my new developing app. but it look like not function well. did any one have some examples or demo domains suggest to use? In fact finally my app is just internal using, user will not suppose connect to internet , how can I using the universal linking without a website ? Thanks

This is probably a silly question, but I couldn't find the answer to it in the forums or in the documentation, though I may be missing something. I currently have an app with a deployment target of iOS 16 and a watchOS app (not independent) with a deployment target of watchOS 7. I understand what happens when I change the deployment target on the iOS app (e.g., users with iOS/iPadOS versions less than 16 will just never see the updates in the App Store). But what happens if I change the deployment target of the watchOS dependent app to something like watchOS 8? Will users who have iOS 16 and watchOS 7 (iOS meets deployment target/watchOS does not) get the app update, and it'll just uninstall the watchOS app automatically? Will they just not see the update? Does the old version of the Watch app somehow stay on their watch while the iOS app gets updated?

I have a ContentView in my app which includes the line of code FileUploadProgressAttributes. this struct is defined in a file included in the target FileUploadProgressExtension. and it is an ActivityAttributes. in ContentView I imported FileUploadProgressExtension, and the xcode is able to find the FileUploadProgressAttributes during prebuild. but during build, it gives me Undefined symbols for architecture arm64: "FileUploadProgressExtension.FileUploadProgressAttributes.init(filename: Swift.String) -> FileUploadProgressExtension.FileUploadProgressAttributes the workaround i found is to add the file with the FileUploadProgressAttributes to my app's target, but I'm not sure if this is the right thing to do. When Xcode created the extension for me, it added the extension target as a target dependency of my app. so obviously if i added this file to my app target it makes the extension target pointless. First time working with widgets so I'm not sure if I'm missing something.

I have a project that uses local SPM packages for modularization. In one of my local SPM packages I have a .storyboard file that gets packaged as a resource in the SPM package and consumed inside the parent. In Xcode 15.4, the resource bundle for my local SPM Package has the bundle id PackageName-TargetName-resources. I use this inside a parent storyboard to reference the storyboard from the SPM package. In Xcode 16, however, the resource bundle for my SPM Package gets assigned the bundle id packagename.TargetName.resources. This, of courses, introduces a crash in builds of my app done with Xcode 16 due to the incorrect bundle id. There is no documentation of this change that I could find by Apple or by the SPM team. Apple Team: There is a Feedback Report FB14803020 with the build files attached from Xcode 15.4 and Xcode 16. I cannot attach those here due to the public nature of this forum

When I try to post a LocationAnnotations of a subclass respect to the one defining variable sceneLocationView, by way of: sceneLocationView.addLocationNodeWithConfirmedLocation(locationNode: bannerAnnotationLocation) When I enter in: public func addLocationNodeWithConfirmedLocation(locationNode: LocationNode) { if locationNode.location == nil || locationNode.locationConfirmed == false { return } updatePositionAndScaleOfLocationNode(locationNode: locationNode, initialSetup: true, animated: true) locationNodes.append(locationNode) print(sceneNode?.description ?? "nil") self.sceneNode?.addChildNode(locationNode) } I find sceneNode to nil, like if the effect of the renderer is lost when subclassing. I also tried to create a new variable in the subclass also assigning SceneLocationView(), but sceneNode remains nil. What to do to force it to assume a value?

Hi, We are trying to use Apple Security API for KeyChain Services. The motive is to store some sensitive data in the KeyChain. Our app has Network extensions enabled which share a common app group and we want to access the data stored in the KeyChain from the extensions as well. Specifically we were exploring the SecItemAdd, SecItemCopyMatching etc family of APIs. We tried a few methods: Using the common App Group : Specifying the common app group in the "kSecAttrAccessGroup" field of the KeyChain query, allowed us to have a shared keychains for different apps (targets) in the app group, but this did not work for extensionsEnabling the KeyChain Sharing capability : We enabled the KeyChain Sharing Ability in the extensions and the app target as well, giving a common KeyChain Access group. Specifying this in the kSecAttrAccessGroup field also did not work.We tried specifying "$AppIdentifier.KeyChainSharingGroup" in the kSecAttrAccessGroup field , but this did not work as wellThe error code which we get in all these 3 cases when trying to access the Keychain from the extension is error code 25291 (errSecNotAvailable). The Documentation says this error comes when "No Trust Results are available" and printing the error in xcode using the status says "No keychain is available. You may need to restart your computer". The online Documentation says that it is possible to share keychain with extensions, but by far we are unable to do it with the methods suggested.Do we need any special entitlement for this or is there something we are missing while using these APIs?If this is possible Is there any internal/open source wrapper for Keychain APIs, that we can use?We will really appreciate help in solving this issue!Thanks!

Hi, I’m debugging an issue with AddressSanitizer (ASan) on macOS. I’ve noticed that strings placed in the __asan_cstring section are aligned and padded with redzones. When I attempt to copy a contiguous block of memory (e.g., memcpy(buf, asan_cstring, 4096)), ASan throws an out-of-bounds access error. On the other hand, strings in the __cstring section do not cause this problem, likely because they are laid out contiguously without redzone padding. Could you clarify: Are strings in __asan_cstring section aligned and padded individually with redzones? Is this redzone inserted after each global string for alignment or instrumentation purposes? Does this mean that bulk memory copies over this section (even if read-only) are inherently unsafe under ASan? Is there a recommended way to safely iterate or copy memory from __asan_cstring without triggering ASan violations? Any guidance on how redzones are managed in the __asan_cstring section would be very helpful.

Hello, I'm unable to run any test cases in Xcode 16 with the iOS 18 simulator. Steps to Reproduce: Create a new iOS project in Xcode 16 using the default iOS app template with the testing option checked. Run any test or UI test case by clicking the "Play" icon in the Test navigator. Xcode gets stuck at the "Testing" state indefinitely. Environment: macOS 15 beta 8 Xcode 16 beta 6 iOS 18 beta 7 simulator

Hi everyone, I’m a student developer currently building a watchOS app that uses HealthKit and HKWorkoutSession to estimate core body temperature from real-time heart rate data. The app runs well in the simulator, but testing on a physical Apple Watch has been extremely difficult. Each time I try to run the app from Xcode (Version 16.3), the build gets stuck on: “Copying shared cache symbols from MyWatchName (0% completed)” Sometimes it just stops stating connection failure. However, more often no errors are shown, but the sync never finishes. I’ve tried the following without success: Restarting the watch, iPhone, and Xcode Switching networks (Wi-Fi and hotspot) USB wired pairing Resetting developer settings and trust prompts Deleting derived data Rebuilding the project This is especially limiting for a real-time health tracking app where I need to monitor HKLiveWorkoutBuilder data while the screen sleeps — which can’t be tested effectively in the simulator.

Hello Team, I try to delete photo from Photos for that i used this method, [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{ [PHAssetChangeRequest deleteAssets:@[assetToDelete]]; completionHandler:^(BOOL success, NSError *error) { }]; This method pops up a dialog with Don't Allow or Delete. But some time in some iPhones not respond PHAssetChangeRequest deleteAssets method that's why that completionHandler not called because of that i can't perform any operation of PHPhotoLibrary then after. If I restart my iPhone then it works. Many users of my app complained about this issue. I have an iPhone 11 with iOS 15.3. But some iOS 12,14,16 users also face the same issue. So what exact issue is there? Is it related to iOS or a method? Thanks, Ankur