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Xcode Not Displaying Code Coverage for Main App When Using Test Plan on iOS Simulator
I am encountering an issue where code coverage data is not showing for my main app in Xcode when running tests for the iOS simulator. However, code coverage is being reported correctly for some modules. Enable Code Coverage Support: YES Xcode 16.2 macOS: 15.3.1 Macbook Pro M1 14-inch, 2021 Despite these configurations, Xcode fails to show code coverage for the main app. Can anyone suggest what might be causing this issue and how to ensure code coverage is correctly reported for the main app during simulator builds?
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216
May ’25
In Xcode's build phases section is it possible to enable/disable compile flags bases on scheme
If an Xcode project has some compiler flags set in Build Phases / Compile Sources, then is it possible to have those enabled if scheme A is selected and disabled if scheme B is selected. Same question for things in Build Settings, such as Other Compiler Flags. I suppose it could be achieved by having two targets, one with things enabled and one without, but for a very large complex project, duplicating targets is not necessarily an easy thing to do.
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80
May ’25
The location coming out of geocoder in CLPlacemark has altitude 0, differently of the input CLLocation
When I execute: geoCoder.reverseGeocodeLocation(location, completionHandler:{[weak self](placemarks, error) in print("reverse geocoding location after altitude: ",location.altitude) print("placemark location first", placemarks?.first?.location?.altitude ?? -1) The input CLLocation has correct altitude 25, instead the location in the output placemarks have altitude 0, when of course they should have the same location. Moreover it is impossible to retrofit any data in the returned placemarks as they are portrayed as a read only property.
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68
Apr ’25
Organizer won't load
I'm unable to use Organizer due to this error. The app shown in the error message is an old, unused test app. I'd delete it if I could, but there doesn't seem to be a way to do that. The app is named "@Home Test" and I suspect that the @ character is what's causing the problem. I need to use Organizer for a completely different app on another team, but I can't get past this.
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74
May ’25
Privacy - Siri Usage Description being reset to default text "Describe why your app needs Siri access" on generating archive
I have an iOS app and that has CarPlay enabled. I have Siri capability and the feature has been tested in Car. The voice commands are working perfectly fine. However, I am facing a weird issue as described below, The key NSSiriUsageDescription, is set to custom text in info.plist. After generating archive, I exported and checked the package contents, in which the the key NSSiriUsageDescription was reset to default text(Describe why your app needs Siri access) in the info.plist. I do not have any dynamic build process that's writing to the info.plist. Only the Siri key is being reset, rest of keys like camera/location permissions are intact. Kindly suggest what needs to be done at my end
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243
May ’25
String Catalog
I have enabled Code Review with the button and then String Catalog turned up to code view anyways i can't get it back to original view. Disable Code Review button doesn't do anything. Any idea?
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291
Jun ’25
iOS 3.1.3 SDK
Hello!!! I want to do a little project for the original iPhone running iOS 3.1.3 and I don’t find the SDK for iOS 3.1.3. I’ve tried downloading Xcode 3.1.3 from the Apple Developer site, but during the installation process, the iPhone SDK doesn’t appear to be included. I also tested Xcode 3.2.2, but it doesn’t seem to have the iPhone OS 3.1.3 SDK either. Does anyone still have the iPhone OS 3.1.3 SDK available or know where I can find it? Thanks!! Edgar
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91
Jun ’25
openURL:options:completionHandler: Simulator Bug
Xcode 16.2. When calling openURL:options:completionHandler: when in the simulator for a link in the app store (for example: http://itunes.apple.com/us/app/slidewords/id503737864?mt=8) behavior is fine for simulated iPads, not for simulated iPhones. When the simulated device is an iPad, the call correctly opens the app store link. When the simulated device is an iPhone, an error message "Safari cannot open the page because the address is invalid." Note: the call works on an an actual iPhone (iPhone SE 3rd generation, unsure about other devices).
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52
Apr ’25
Is SFSymbol Customization officially valid as a method for using SVG in embedded widgets (lock-screen & watchOS)?
Is SFSymbol Customization officially valid as a method for using SVG in embedded widgets (lock-screen & watchOS)? I use this in UnitedPizzaHelper but wonder whether this is the prime cause why all widgets of this app gets missing on iOS devices? This issue only happened on at least 2 device in the recent 12 months (they are all on iOS 18, and one of them is running iOS 18.5... Rebooting device won't work.), and we currently have no clue how to troubleshoot this. Update: The guy running iOS 18.5 told me that the widgets are now discoverable after waiting for minutes. Seems that this is a random issue.
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74
Jun ’25
C++ Binary Size Increase in Xcode 16 Compared to Xcode 15
I've recently upgraded my project from Xcode 15 to Xcode 16. Without changing any build settings or compiler flags, I noticed that the final executable size has increased significantly when building the same C++ code. Investigation: To investigate further, I compared the Link Map outputs from both versions of Xcode. One key difference I found: The symbol size for std::sort increased from 4,336 bytes (Xcode 15) to 6,084 bytes (Xcode 16) – a ~40% increase. This seems to be part of a broader trend where other standard library symbols are also taking up more space in the binary when built with Xcode 16. Questions: Has Apple Clang or libc++ in Xcode 16 changed the implementation of STL algorithms like std::sort? Are there changes in inlining, template instantiation, or debug info that could explain the increase? Is this expected behavior? If so, is there any guidance on minimizing the binary size regression?
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151
Apr ’25
Why Must All Attributes in a Composite Type Be Optional?
I recently encountered an issue involving Core Data’s new Composite Attributes feature and thought I would share my experience, as well as seek clarification. I created a composite type where all attributes were mandatory, except for one. Subsequently, I added an attribute to an entity and set its type to that composite type. Upon running the app, the console output the following error: CoreData: error: CoreData: error: Row (pk = 85) for entity ‘(EntityName)’ is missing mandatory text data for property ‘(propertyName)’ The way I resolved this was by removing the composite type attribute from the entity, after which the error no longer appeared. I also observed that in another entity, where a different composite type is used, all the attributes were optional — and no error occurred. This raises the question: why must all attributes in a composite type be optional? Furthermore, why does Xcode not inform the developer of this requirement? I have reviewed both the documentation and the WWDC23 “What’s New in Core Data” session, but neither mentions that having non-optional attributes within a composite type will cause such errors and lead to unpredictable application behaviour. Additionally, this issue remains unresolved in another area I raised previously in this topic: Composite Attributes feature requires tvOS deployment target 17.0 or later Composite Attributes feature requires watchOS deployment target 10.0 or later However, I do not have a tvOS or watchOS target, nor do I intend to add one. Could someone from Apple, or anyone with more experience, please clarify why all attributes within a composite type must be optional? And could it be possible for Xcode to flag this at compile time, rather than failing at runtime? Thank you in advance.
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104
Apr ’25
watchOS-Questions about HealthKit privileges
The WatchOS developer is not allowed to obtain healthKit permission status. The result is always unauthorized (either by clicking the dot/cross in the upper left corner or by turning on all Health, on some, off all). WatchOS 开发获取 healthKit 的权限状态authorizationStatus不准。结果始终都是未授权(无论是点击左上角的点叉号还是开启全部健康项开关,开启部分,关闭所有),怎么处理?
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79
Apr ’25
SFSpeechRecognizer is not working inside visionOS 2.4 simulator
I know there has been issues with SFSpeechRecognizer in iOS 17+ inside the simulator. Running into issues with speech not being recognised inside the visionOS 2.4 simulator as well (likely because it borrows from iOS frameworks). Just wondering if anyone has any work arounds or advice for this simulator issue. I can't test on device because I don't have an Apple Vision Pro. Using Swift 6 on Xcode 16.3. Below are the console logs & the code that I am using. Console Logs BACKGROUND SPATIAL TAP (hit BackgroundTapPlane) SpeechToTextManager.startRecording() called [0x15388a900|InputElement #0|Initialize] Number of channels = 0 in AudioChannelLayout does not match number of channels = 2 in stream format. iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending SpeechToTextManager.startRecording() completed successfully and recording is active. GameManager.onTapToggle received. speechToTextManager.isAvailable: true, speechToTextManager.isRecording: true GameManager received tap toggle callback. Tapped Object: None BACKGROUND SPATIAL TAP (hit BackgroundTapPlane) GESTURE MANAGER - User is already recording, stopping recording SpeechToTextManager.stopRecording() called GameManager.onTapToggle received. speechToTextManager.isAvailable: true, speechToTextManager.isRecording: false Audio data size: 134400 bytes Recognition task error: No speech detected <--- Code private(set) var isRecording: Bool = false private var recognitionRequest: SFSpeechAudioBufferRecognitionRequest? private var recognitionTask: SFSpeechRecognitionTask? @MainActor func startRecording() async throws { logger.debug("SpeechToTextManager.startRecording() called") guard !isRecording else { logger.warning("Cannot start recording: Already recording.") throw AppError.alreadyRecording } currentTranscript = "" processingError = nil audioBuffer = Data() isRecording = true do { try await configureAudioSession() try await Task.detached { [weak self] in guard let self = self else { throw AppError.internalError(description: "SpeechToTextManager instance deallocated during recording setup.") } try await self.audioProcessor.configureAudioEngine() let (recognizer, request) = try await MainActor.run { () -> (SFSpeechRecognizer, SFSpeechAudioBufferRecognitionRequest) in guard let result = self.createRecognitionRequest() else { throw AppError.configurationError(description: "Speech recognition not available or SFSpeechRecognizer initialization failed.") } return result } await MainActor.run { self.recognitionRequest = request } await MainActor.run { self.recognitionTask = recognizer.recognitionTask(with: request) { [weak self] result, error in guard let self = self else { return } if let error = error { // WE ENTER INTO THIS BLOCK, ALWAYS self.logger.error("Recognition task error: \(error.localizedDescription)") self.processingError = .speechRecognitionError(description: error.localizedDescription) return } . . . } } . . . }.value } catch { . . . } } @MainActor func stopRecording() { logger.debug("SpeechToTextManager.stopRecording() called") guard isRecording else { logger.debug("Not recording, nothing to do") return } isRecording = false Task.detached { [weak self] in guard let self = self else { return } await self.audioProcessor.stopEngine() let finalBuffer = await self.audioProcessor.getAudioBuffer() await MainActor.run { self.recognitionRequest?.endAudio() self.recognitionTask?.cancel() } . . . } }
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167
May ’25
Latest Xcode build giving multiple system level errors
with the latest Xcode version, i am getting all kinds of errors: few main ones: /Users/akashbhatia/MyApp/ios/Pods/Target Support Files/ReactCodegen/ReactCodegen-prefix.pch:2:9 Could not build module 'UIKit' /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator18.4.sdk/System/Library/Frameworks/CFNetwork.framework/Headers/CFNetwork.h:18:10 Could not build module 'CoreFoundation' /Users/akashbhatia/MyApp/ios/Pods/Headers/Public/RCT-Folly/folly/portability/Config.h:20:10 'folly/folly-config.h' file not found I have reinstalled Xcode, removed derived data, installed pod over and over again, but I have realized from the first error here, that it has more to do with Xcode and React Native now. Any help will be appreciated.
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90
Apr ’25
NO_CRASH_STACK with different number of crashes from the App Store.
Hello. For the last few months I have been facing a situation for which I do not understand either the reason or the solution. Here is an example for the last few weeks: In App Store Connect it shows 214 crashes for the last week In Xcode it shows 56 crashes for the last 2 weeks without stack traces (NO_CRASH_STACK) In Firebase Crashlytics there is not a single crash. When I click "Show in Finder" it opens a folder with .xccrashpoint files. As far as I understood from the instructions on posting crash reports - this is not what is needed. Interesting point: it looks like the errors occur on iOS 15-16 devices. I have several questions: Why is the number of crashes in Xcode different from the number in App Store Connect? Where are the other crashes? How can I understand what the problem is if there are no stack traces in Xcode?
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124
May ’25
Invalid Symlink on Kivy App
I built an app in Python with Kivy and I'm trying to bring it over to iOS. I made an Xcode project out of it that builds successfully, but it fails to install in the simulator or onto a device. There's an error about symlink, but I'm not sure how to fix it. Any advice would be appreciated. Domain: IXUserPresentableErrorDomain Code: 1 Failure Reason: Please try again later. Recovery Suggestion: invalid symlink at /Users/seanaldous/Library/Developer/CoreSimulator/Devices/96414FA1-78EF-4B59-979C-EAFB318C9653/data/Library/Caches/com.apple.mobile.installd.staging/temp.509ha0/extracted/sert.app/YourApp/.venv/bin/python3 User Info: { DVTErrorCreationDateKey = "2025-04-08 15:09:36 +0000"; IDERunOperationFailingWorker = IDELaunchiPhoneSimulatorLauncher; SimCallingSelector = "installApplication:withOptions:error:"; } -- Unable to Install “sert” Domain: IXUserPresentableErrorDomain Code: 1 Failure Reason: Please try again later. Recovery Suggestion: invalid symlink at /Users/seanaldous/Library/Developer/CoreSimulator/Devices/96414FA1-78EF-4B59-979C-EAFB318C9653/data/Library/Caches/com.apple.mobile.installd.staging/temp.509ha0/extracted/sert.app/YourApp/.venv/bin/python3 -- invalid symlink at /Users/seanaldous/Library/Developer/CoreSimulator/Devices/96414FA1-78EF-4B59-979C-EAFB318C9653/data/Library/Caches/com.apple.mobile.installd.staging/temp.509ha0/extracted/sert.app/YourApp/.venv/bin/python3 Domain: MIInstallerErrorDomain Code: 70 User Info: { FunctionName = "-[MIFileManager validateSymlinksInURLDoNotEscapeURL:error:]_block_invoke"; LegacyErrorString = InvalidSymlink; SourceFileLine = 1161; } -- Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : { "device_identifier" = "96414FA1-78EF-4B59-979C-EAFB318C9653"; "device_model" = "iPhone17,3"; "device_osBuild" = "18.3.1 (22D8075)"; "device_platform" = "com.apple.platform.iphonesimulator"; "device_thinningType" = "iPhone17,3"; "dvt_coredevice_version" = "397.28"; "dvt_coresimulator_version" = "993.7"; "dvt_mobiledevice_version" = "1759.81.1"; "launchSession_schemeCommand" = Run; "launchSession_state" = 1; "launchSession_targetArch" = "x86_64"; "operation_duration_ms" = 32680; "operation_errorCode" = 1; "operation_errorDomain" = IXUserPresentableErrorDomain; "operation_errorWorker" = IDELaunchiPhoneSimulatorLauncher; "operation_name" = IDERunOperationWorkerGroup; "param_debugger_attachToExtensions" = 0; "param_debugger_attachToXPC" = 1; "param_debugger_type" = 3; "param_destination_isProxy" = 0; "param_destination_platform" = "com.apple.platform.iphonesimulator"; "param_diag_113575882_enable" = 0; "param_diag_MainThreadChecker_stopOnIssue" = 0; "param_diag_MallocStackLogging_enableDuringAttach" = 0; "param_diag_MallocStackLogging_enableForXPC" = 1; "param_diag_allowLocationSimulation" = 1; "param_diag_checker_tpc_enable" = 1; "param_diag_gpu_frameCapture_enable" = 0; "param_diag_gpu_shaderValidation_enable" = 0; "param_diag_gpu_validation_enable" = 0; "param_diag_guardMalloc_enable" = 0; "param_diag_memoryGraphOnResourceException" = 0; "param_diag_mtc_enable" = 1; "param_diag_queueDebugging_enable" = 1; "param_diag_runtimeProfile_generate" = 0; "param_diag_sanitizer_asan_enable" = 0; "param_diag_sanitizer_tsan_enable" = 0; "param_diag_sanitizer_tsan_stopOnIssue" = 0; "param_diag_sanitizer_ubsan_enable" = 0; "param_diag_sanitizer_ubsan_stopOnIssue" = 0; "param_diag_showNonLocalizedStrings" = 0; "param_diag_viewDebugging_enabled" = 1; "param_diag_viewDebugging_insertDylibOnLaunch" = 1; "param_install_style" = 2; "param_launcher_UID" = 2; "param_launcher_allowDeviceSensorReplayData" = 0; "param_launcher_kind" = 0; "param_launcher_style" = 0; "param_launcher_substyle" = 0; "param_runnable_appExtensionHostRunMode" = 0; "param_runnable_productType" = "com.apple.product-type.application"; "param_structuredConsoleMode" = 1; "param_testing_launchedForTesting" = 0; "param_testing_suppressSimulatorApp" = 0; "param_testing_usingCLI" = 0; "sdk_canonicalName" = "iphonesimulator18.2"; "sdk_osVersion" = "18.2"; "sdk_variant" = iphonesimulator; } -- System Information macOS Version 15.3.2 (Build 24D81) Xcode 16.2 (23507) (Build 16C5032a) Timestamp: 2025-04-08T08:09:36-07:00
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Apr ’25
Trying to deploy WatchOS 9.6 to a watch that is on 10.6
I have an Apple Watch 4. (GPS). It's on version 10.6. I'm trying to deploy a basic app onto it (IOS 18) (WatchOS 9.6). I've set the targets in General for Watch App, Watch AppTest, Watch AppUITest. I still get an Apple Watches watchOS doesn't match App Watch app.app watch02 9.6 deployment target. Upgrade users Apple Watch watchOS version or lower app app.apps deployment target. What can I do to fix this?
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243
Jun ’25
Not able to connect iPad with Xcode
I am not able to connect my iPad 10th gen (OS - 18.4.1) with Xcode (OS - 16.3). It is give me error "Failed to find a DDI that can be used to enable DDI services on the device. Usually this means the best DDI we could find for a platform did not have compatible CoreDevice content. Run 'devicectl list preferredDDI' from the command line to get more details on why no valid DDI can be found." I also tried uninstalling and installing Xcode but still the same issue. Please suggest the solution.
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404
Apr ’25
Errors compiling C++ code for x86_64
I have a project (that uses pre-compiled headers) that uses different compiler options for SOME files. For those files I have this is in my CMakelists.txt: if(CMAKE_C_COMPILER_ID MATCHES "GNU|Clang") set_source_files_properties(${AVX_Files} PROPERTIES COMPILE_OPTIONS "-mavx;-mavx2;-mfma;-mssse3;-msse4.2") set_source_files_properties(avx_simd_check.cpp PROPERTIES COMPILE_OPTIONS "-mxsave") endif() When I build for ARM, it all works :) When I try to build for X86_64, I get the following error for avx_simd_check.cpp: error: current translation unit is compiled with the target feature '+xsave' but the AST file was not 1 error generated. and for all the other files in question: error: current translation unit is compiled with the target feature '+avx' but the AST file was not error: current translation unit is compiled with the target feature '+avx2' but the AST file was not error: current translation unit is compiled with the target feature '+fma' but the AST file was not error: current translation unit is compiled with the target feature '+sse4.2' but the AST file was not error: current translation unit is compiled with the target feature '+ssse3' but the AST file was not 5 errors generated. How can I solve this please? David
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186
Apr ’25
Xcode Not Displaying Code Coverage for Main App When Using Test Plan on iOS Simulator
I am encountering an issue where code coverage data is not showing for my main app in Xcode when running tests for the iOS simulator. However, code coverage is being reported correctly for some modules. Enable Code Coverage Support: YES Xcode 16.2 macOS: 15.3.1 Macbook Pro M1 14-inch, 2021 Despite these configurations, Xcode fails to show code coverage for the main app. Can anyone suggest what might be causing this issue and how to ensure code coverage is correctly reported for the main app during simulator builds?
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1
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0
Views
216
Activity
May ’25
How do I add file group?(Xcode16.1)
They said something like hold option or whatever but It didn't seems to work with me...
Replies
2
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0
Views
617
Activity
Apr ’25
In Xcode's build phases section is it possible to enable/disable compile flags bases on scheme
If an Xcode project has some compiler flags set in Build Phases / Compile Sources, then is it possible to have those enabled if scheme A is selected and disabled if scheme B is selected. Same question for things in Build Settings, such as Other Compiler Flags. I suppose it could be achieved by having two targets, one with things enabled and one without, but for a very large complex project, duplicating targets is not necessarily an easy thing to do.
Replies
1
Boosts
0
Views
80
Activity
May ’25
The location coming out of geocoder in CLPlacemark has altitude 0, differently of the input CLLocation
When I execute: geoCoder.reverseGeocodeLocation(location, completionHandler:{[weak self](placemarks, error) in print("reverse geocoding location after altitude: ",location.altitude) print("placemark location first", placemarks?.first?.location?.altitude ?? -1) The input CLLocation has correct altitude 25, instead the location in the output placemarks have altitude 0, when of course they should have the same location. Moreover it is impossible to retrofit any data in the returned placemarks as they are portrayed as a read only property.
Replies
0
Boosts
0
Views
68
Activity
Apr ’25
Organizer won't load
I'm unable to use Organizer due to this error. The app shown in the error message is an old, unused test app. I'd delete it if I could, but there doesn't seem to be a way to do that. The app is named "@Home Test" and I suspect that the @ character is what's causing the problem. I need to use Organizer for a completely different app on another team, but I can't get past this.
Replies
1
Boosts
0
Views
74
Activity
May ’25
Privacy - Siri Usage Description being reset to default text "Describe why your app needs Siri access" on generating archive
I have an iOS app and that has CarPlay enabled. I have Siri capability and the feature has been tested in Car. The voice commands are working perfectly fine. However, I am facing a weird issue as described below, The key NSSiriUsageDescription, is set to custom text in info.plist. After generating archive, I exported and checked the package contents, in which the the key NSSiriUsageDescription was reset to default text(Describe why your app needs Siri access) in the info.plist. I do not have any dynamic build process that's writing to the info.plist. Only the Siri key is being reset, rest of keys like camera/location permissions are intact. Kindly suggest what needs to be done at my end
Replies
0
Boosts
0
Views
243
Activity
May ’25
String Catalog
I have enabled Code Review with the button and then String Catalog turned up to code view anyways i can't get it back to original view. Disable Code Review button doesn't do anything. Any idea?
Replies
1
Boosts
0
Views
291
Activity
Jun ’25
iOS 3.1.3 SDK
Hello!!! I want to do a little project for the original iPhone running iOS 3.1.3 and I don’t find the SDK for iOS 3.1.3. I’ve tried downloading Xcode 3.1.3 from the Apple Developer site, but during the installation process, the iPhone SDK doesn’t appear to be included. I also tested Xcode 3.2.2, but it doesn’t seem to have the iPhone OS 3.1.3 SDK either. Does anyone still have the iPhone OS 3.1.3 SDK available or know where I can find it? Thanks!! Edgar
Replies
0
Boosts
0
Views
91
Activity
Jun ’25
openURL:options:completionHandler: Simulator Bug
Xcode 16.2. When calling openURL:options:completionHandler: when in the simulator for a link in the app store (for example: http://itunes.apple.com/us/app/slidewords/id503737864?mt=8) behavior is fine for simulated iPads, not for simulated iPhones. When the simulated device is an iPad, the call correctly opens the app store link. When the simulated device is an iPhone, an error message "Safari cannot open the page because the address is invalid." Note: the call works on an an actual iPhone (iPhone SE 3rd generation, unsure about other devices).
Replies
0
Boosts
0
Views
52
Activity
Apr ’25
Is SFSymbol Customization officially valid as a method for using SVG in embedded widgets (lock-screen & watchOS)?
Is SFSymbol Customization officially valid as a method for using SVG in embedded widgets (lock-screen & watchOS)? I use this in UnitedPizzaHelper but wonder whether this is the prime cause why all widgets of this app gets missing on iOS devices? This issue only happened on at least 2 device in the recent 12 months (they are all on iOS 18, and one of them is running iOS 18.5... Rebooting device won't work.), and we currently have no clue how to troubleshoot this. Update: The guy running iOS 18.5 told me that the widgets are now discoverable after waiting for minutes. Seems that this is a random issue.
Replies
0
Boosts
0
Views
74
Activity
Jun ’25
C++ Binary Size Increase in Xcode 16 Compared to Xcode 15
I've recently upgraded my project from Xcode 15 to Xcode 16. Without changing any build settings or compiler flags, I noticed that the final executable size has increased significantly when building the same C++ code. Investigation: To investigate further, I compared the Link Map outputs from both versions of Xcode. One key difference I found: The symbol size for std::sort increased from 4,336 bytes (Xcode 15) to 6,084 bytes (Xcode 16) – a ~40% increase. This seems to be part of a broader trend where other standard library symbols are also taking up more space in the binary when built with Xcode 16. Questions: Has Apple Clang or libc++ in Xcode 16 changed the implementation of STL algorithms like std::sort? Are there changes in inlining, template instantiation, or debug info that could explain the increase? Is this expected behavior? If so, is there any guidance on minimizing the binary size regression?
Replies
0
Boosts
0
Views
151
Activity
Apr ’25
Why Must All Attributes in a Composite Type Be Optional?
I recently encountered an issue involving Core Data’s new Composite Attributes feature and thought I would share my experience, as well as seek clarification. I created a composite type where all attributes were mandatory, except for one. Subsequently, I added an attribute to an entity and set its type to that composite type. Upon running the app, the console output the following error: CoreData: error: CoreData: error: Row (pk = 85) for entity ‘(EntityName)’ is missing mandatory text data for property ‘(propertyName)’ The way I resolved this was by removing the composite type attribute from the entity, after which the error no longer appeared. I also observed that in another entity, where a different composite type is used, all the attributes were optional — and no error occurred. This raises the question: why must all attributes in a composite type be optional? Furthermore, why does Xcode not inform the developer of this requirement? I have reviewed both the documentation and the WWDC23 “What’s New in Core Data” session, but neither mentions that having non-optional attributes within a composite type will cause such errors and lead to unpredictable application behaviour. Additionally, this issue remains unresolved in another area I raised previously in this topic: Composite Attributes feature requires tvOS deployment target 17.0 or later Composite Attributes feature requires watchOS deployment target 10.0 or later However, I do not have a tvOS or watchOS target, nor do I intend to add one. Could someone from Apple, or anyone with more experience, please clarify why all attributes within a composite type must be optional? And could it be possible for Xcode to flag this at compile time, rather than failing at runtime? Thank you in advance.
Replies
0
Boosts
0
Views
104
Activity
Apr ’25
watchOS-Questions about HealthKit privileges
The WatchOS developer is not allowed to obtain healthKit permission status. The result is always unauthorized (either by clicking the dot/cross in the upper left corner or by turning on all Health, on some, off all). WatchOS 开发获取 healthKit 的权限状态authorizationStatus不准。结果始终都是未授权(无论是点击左上角的点叉号还是开启全部健康项开关,开启部分,关闭所有),怎么处理?
Replies
0
Boosts
0
Views
79
Activity
Apr ’25
SFSpeechRecognizer is not working inside visionOS 2.4 simulator
I know there has been issues with SFSpeechRecognizer in iOS 17+ inside the simulator. Running into issues with speech not being recognised inside the visionOS 2.4 simulator as well (likely because it borrows from iOS frameworks). Just wondering if anyone has any work arounds or advice for this simulator issue. I can't test on device because I don't have an Apple Vision Pro. Using Swift 6 on Xcode 16.3. Below are the console logs & the code that I am using. Console Logs BACKGROUND SPATIAL TAP (hit BackgroundTapPlane) SpeechToTextManager.startRecording() called [0x15388a900|InputElement #0|Initialize] Number of channels = 0 in AudioChannelLayout does not match number of channels = 2 in stream format. iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending iOSSimulatorAudioDevice-22270-1: Abandoning I/O cycle because reconfig pending SpeechToTextManager.startRecording() completed successfully and recording is active. GameManager.onTapToggle received. speechToTextManager.isAvailable: true, speechToTextManager.isRecording: true GameManager received tap toggle callback. Tapped Object: None BACKGROUND SPATIAL TAP (hit BackgroundTapPlane) GESTURE MANAGER - User is already recording, stopping recording SpeechToTextManager.stopRecording() called GameManager.onTapToggle received. speechToTextManager.isAvailable: true, speechToTextManager.isRecording: false Audio data size: 134400 bytes Recognition task error: No speech detected <--- Code private(set) var isRecording: Bool = false private var recognitionRequest: SFSpeechAudioBufferRecognitionRequest? private var recognitionTask: SFSpeechRecognitionTask? @MainActor func startRecording() async throws { logger.debug("SpeechToTextManager.startRecording() called") guard !isRecording else { logger.warning("Cannot start recording: Already recording.") throw AppError.alreadyRecording } currentTranscript = "" processingError = nil audioBuffer = Data() isRecording = true do { try await configureAudioSession() try await Task.detached { [weak self] in guard let self = self else { throw AppError.internalError(description: "SpeechToTextManager instance deallocated during recording setup.") } try await self.audioProcessor.configureAudioEngine() let (recognizer, request) = try await MainActor.run { () -> (SFSpeechRecognizer, SFSpeechAudioBufferRecognitionRequest) in guard let result = self.createRecognitionRequest() else { throw AppError.configurationError(description: "Speech recognition not available or SFSpeechRecognizer initialization failed.") } return result } await MainActor.run { self.recognitionRequest = request } await MainActor.run { self.recognitionTask = recognizer.recognitionTask(with: request) { [weak self] result, error in guard let self = self else { return } if let error = error { // WE ENTER INTO THIS BLOCK, ALWAYS self.logger.error("Recognition task error: \(error.localizedDescription)") self.processingError = .speechRecognitionError(description: error.localizedDescription) return } . . . } } . . . }.value } catch { . . . } } @MainActor func stopRecording() { logger.debug("SpeechToTextManager.stopRecording() called") guard isRecording else { logger.debug("Not recording, nothing to do") return } isRecording = false Task.detached { [weak self] in guard let self = self else { return } await self.audioProcessor.stopEngine() let finalBuffer = await self.audioProcessor.getAudioBuffer() await MainActor.run { self.recognitionRequest?.endAudio() self.recognitionTask?.cancel() } . . . } }
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Activity
May ’25
Latest Xcode build giving multiple system level errors
with the latest Xcode version, i am getting all kinds of errors: few main ones: /Users/akashbhatia/MyApp/ios/Pods/Target Support Files/ReactCodegen/ReactCodegen-prefix.pch:2:9 Could not build module 'UIKit' /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator18.4.sdk/System/Library/Frameworks/CFNetwork.framework/Headers/CFNetwork.h:18:10 Could not build module 'CoreFoundation' /Users/akashbhatia/MyApp/ios/Pods/Headers/Public/RCT-Folly/folly/portability/Config.h:20:10 'folly/folly-config.h' file not found I have reinstalled Xcode, removed derived data, installed pod over and over again, but I have realized from the first error here, that it has more to do with Xcode and React Native now. Any help will be appreciated.
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90
Activity
Apr ’25
NO_CRASH_STACK with different number of crashes from the App Store.
Hello. For the last few months I have been facing a situation for which I do not understand either the reason or the solution. Here is an example for the last few weeks: In App Store Connect it shows 214 crashes for the last week In Xcode it shows 56 crashes for the last 2 weeks without stack traces (NO_CRASH_STACK) In Firebase Crashlytics there is not a single crash. When I click "Show in Finder" it opens a folder with .xccrashpoint files. As far as I understood from the instructions on posting crash reports - this is not what is needed. Interesting point: it looks like the errors occur on iOS 15-16 devices. I have several questions: Why is the number of crashes in Xcode different from the number in App Store Connect? Where are the other crashes? How can I understand what the problem is if there are no stack traces in Xcode?
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124
Activity
May ’25
Invalid Symlink on Kivy App
I built an app in Python with Kivy and I'm trying to bring it over to iOS. I made an Xcode project out of it that builds successfully, but it fails to install in the simulator or onto a device. There's an error about symlink, but I'm not sure how to fix it. Any advice would be appreciated. Domain: IXUserPresentableErrorDomain Code: 1 Failure Reason: Please try again later. Recovery Suggestion: invalid symlink at /Users/seanaldous/Library/Developer/CoreSimulator/Devices/96414FA1-78EF-4B59-979C-EAFB318C9653/data/Library/Caches/com.apple.mobile.installd.staging/temp.509ha0/extracted/sert.app/YourApp/.venv/bin/python3 User Info: { DVTErrorCreationDateKey = "2025-04-08 15:09:36 +0000"; IDERunOperationFailingWorker = IDELaunchiPhoneSimulatorLauncher; SimCallingSelector = "installApplication:withOptions:error:"; } -- Unable to Install “sert” Domain: IXUserPresentableErrorDomain Code: 1 Failure Reason: Please try again later. Recovery Suggestion: invalid symlink at /Users/seanaldous/Library/Developer/CoreSimulator/Devices/96414FA1-78EF-4B59-979C-EAFB318C9653/data/Library/Caches/com.apple.mobile.installd.staging/temp.509ha0/extracted/sert.app/YourApp/.venv/bin/python3 -- invalid symlink at /Users/seanaldous/Library/Developer/CoreSimulator/Devices/96414FA1-78EF-4B59-979C-EAFB318C9653/data/Library/Caches/com.apple.mobile.installd.staging/temp.509ha0/extracted/sert.app/YourApp/.venv/bin/python3 Domain: MIInstallerErrorDomain Code: 70 User Info: { FunctionName = "-[MIFileManager validateSymlinksInURLDoNotEscapeURL:error:]_block_invoke"; LegacyErrorString = InvalidSymlink; SourceFileLine = 1161; } -- Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : { "device_identifier" = "96414FA1-78EF-4B59-979C-EAFB318C9653"; "device_model" = "iPhone17,3"; "device_osBuild" = "18.3.1 (22D8075)"; "device_platform" = "com.apple.platform.iphonesimulator"; "device_thinningType" = "iPhone17,3"; "dvt_coredevice_version" = "397.28"; "dvt_coresimulator_version" = "993.7"; "dvt_mobiledevice_version" = "1759.81.1"; "launchSession_schemeCommand" = Run; "launchSession_state" = 1; "launchSession_targetArch" = "x86_64"; "operation_duration_ms" = 32680; "operation_errorCode" = 1; "operation_errorDomain" = IXUserPresentableErrorDomain; "operation_errorWorker" = IDELaunchiPhoneSimulatorLauncher; "operation_name" = IDERunOperationWorkerGroup; "param_debugger_attachToExtensions" = 0; "param_debugger_attachToXPC" = 1; "param_debugger_type" = 3; "param_destination_isProxy" = 0; "param_destination_platform" = "com.apple.platform.iphonesimulator"; "param_diag_113575882_enable" = 0; "param_diag_MainThreadChecker_stopOnIssue" = 0; "param_diag_MallocStackLogging_enableDuringAttach" = 0; "param_diag_MallocStackLogging_enableForXPC" = 1; "param_diag_allowLocationSimulation" = 1; "param_diag_checker_tpc_enable" = 1; "param_diag_gpu_frameCapture_enable" = 0; "param_diag_gpu_shaderValidation_enable" = 0; "param_diag_gpu_validation_enable" = 0; "param_diag_guardMalloc_enable" = 0; "param_diag_memoryGraphOnResourceException" = 0; "param_diag_mtc_enable" = 1; "param_diag_queueDebugging_enable" = 1; "param_diag_runtimeProfile_generate" = 0; "param_diag_sanitizer_asan_enable" = 0; "param_diag_sanitizer_tsan_enable" = 0; "param_diag_sanitizer_tsan_stopOnIssue" = 0; "param_diag_sanitizer_ubsan_enable" = 0; "param_diag_sanitizer_ubsan_stopOnIssue" = 0; "param_diag_showNonLocalizedStrings" = 0; "param_diag_viewDebugging_enabled" = 1; "param_diag_viewDebugging_insertDylibOnLaunch" = 1; "param_install_style" = 2; "param_launcher_UID" = 2; "param_launcher_allowDeviceSensorReplayData" = 0; "param_launcher_kind" = 0; "param_launcher_style" = 0; "param_launcher_substyle" = 0; "param_runnable_appExtensionHostRunMode" = 0; "param_runnable_productType" = "com.apple.product-type.application"; "param_structuredConsoleMode" = 1; "param_testing_launchedForTesting" = 0; "param_testing_suppressSimulatorApp" = 0; "param_testing_usingCLI" = 0; "sdk_canonicalName" = "iphonesimulator18.2"; "sdk_osVersion" = "18.2"; "sdk_variant" = iphonesimulator; } -- System Information macOS Version 15.3.2 (Build 24D81) Xcode 16.2 (23507) (Build 16C5032a) Timestamp: 2025-04-08T08:09:36-07:00
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Activity
Apr ’25
Trying to deploy WatchOS 9.6 to a watch that is on 10.6
I have an Apple Watch 4. (GPS). It's on version 10.6. I'm trying to deploy a basic app onto it (IOS 18) (WatchOS 9.6). I've set the targets in General for Watch App, Watch AppTest, Watch AppUITest. I still get an Apple Watches watchOS doesn't match App Watch app.app watch02 9.6 deployment target. Upgrade users Apple Watch watchOS version or lower app app.apps deployment target. What can I do to fix this?
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243
Activity
Jun ’25
Not able to connect iPad with Xcode
I am not able to connect my iPad 10th gen (OS - 18.4.1) with Xcode (OS - 16.3). It is give me error "Failed to find a DDI that can be used to enable DDI services on the device. Usually this means the best DDI we could find for a platform did not have compatible CoreDevice content. Run 'devicectl list preferredDDI' from the command line to get more details on why no valid DDI can be found." I also tried uninstalling and installing Xcode but still the same issue. Please suggest the solution.
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404
Activity
Apr ’25
Errors compiling C++ code for x86_64
I have a project (that uses pre-compiled headers) that uses different compiler options for SOME files. For those files I have this is in my CMakelists.txt: if(CMAKE_C_COMPILER_ID MATCHES "GNU|Clang") set_source_files_properties(${AVX_Files} PROPERTIES COMPILE_OPTIONS "-mavx;-mavx2;-mfma;-mssse3;-msse4.2") set_source_files_properties(avx_simd_check.cpp PROPERTIES COMPILE_OPTIONS "-mxsave") endif() When I build for ARM, it all works :) When I try to build for X86_64, I get the following error for avx_simd_check.cpp: error: current translation unit is compiled with the target feature '+xsave' but the AST file was not 1 error generated. and for all the other files in question: error: current translation unit is compiled with the target feature '+avx' but the AST file was not error: current translation unit is compiled with the target feature '+avx2' but the AST file was not error: current translation unit is compiled with the target feature '+fma' but the AST file was not error: current translation unit is compiled with the target feature '+sse4.2' but the AST file was not error: current translation unit is compiled with the target feature '+ssse3' but the AST file was not 5 errors generated. How can I solve this please? David
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186
Activity
Apr ’25