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Privileged Helper is denied permission to open raw device
Hello, appreciate any help here. Objective: perform a scoped write to a removable block device (using low-level system frameworks in C). Issue: launchd-run privileged helper (as root) denied permission to open block device. Manual 'sudo ./helper' call succeeds, however. Importantly: the entire process works flawlessly if the main app is granted Full Disk Access in Privacy & Security. However, this should be completely unnecessary for this objective, as scoped access should be sufficient, and FDA is in fact not required for other apps which perform this task. Architecture and flow: Main GUI process collects ISO path and target removable device path (queried via IOKit). Main GUI process installs a Privileged Helper via SMJobBless. The Privileged Helper is started on demand by launchd as root (UID 0, EUID 0). Main GUI process communicates selected ISO and device paths to Privileged Helper via XPC. Privileged Helper conducts security and sanity checks, unmounts volumes from target device via DiskArbitration.
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Build Failure - Missing Entitlement
I have a build failure problem in my project. The two messages read: Automatic signing failed Xcode failed to provision this target. Please file a bug report at https://feedbackassistant.apple.com and include the Update Signing report from the Report navigator. Provisioning profile iOS Team Provisioning Profile: com.hodge.MeditateMD doesn't include the com.apple.developer.activitykit entitlement. When I look at my entitlements in the signing and capability, I see that the com.apple.activitykit is missing. When I go to my app in the developer website, I can’t find live activities to add to the provisioning profile. I am really stuck and would appreciate any help!
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Reply to Issue when creating Bookmark with security scope on macOS 26 RC
First off, on the bug front, these issues should be resolved in macOS 26.1, which we released to beta last week (25B5042k). Please test on that beta, and if you find any problem, file a new bug and post the bug number back here. Are we actually talking about the same bug though? Yes, I believe so. Coe 256 seems to be an issue only for the root drive of exFAT. The issue here was actually introduced as part of a security fix (r.151029665) and it affected exFAT, some SMB mounts, and the / AFPS mount. In both cases, the high-level issue is the same (basically, stat wasn't returning what it expected), but the underlying cause was different. In the case of exFAT, the file system is basically “too simple, so it's basically returning a synthetic (invented) value because the file system doesn't really have an alternative it can provide. In the case of APFS, the issue is that the way that data and system volumes are merged means that you can get different values for the same object, depending
Topic: App & System Services SubTopic: Core OS Tags:
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Recover iPadOS MenuBar state from different scenes
I’m building a Flutter plugin to access the new menubar API on iPadOS. Everything works fine with a single scene, but I’m running into issues when adding support for multiple scenes: Only odd-numbered windows (first, third, etc.) build their menus correctly. Even-numbered windows ignore the menus sent from Flutter and fall back to a default menubar. When switching between scenes, the last rendered menu always persists instead of updating to the current focus. So far, I’ve: Implemented the plugin as a singleton. Tried to persist menu state per scene, but without success. What would be the recommended approach here? Should I avoid a singleton and manage state entirely per UIScene instance? The project is open-source, and if anyone is willing to take a look, here are the relevant files: /ios/Classes/IpadOSMenubarPlugin.swift /example/ios/Runner/AppDelegate.swift Any guidance would be much appreciated.
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Reply to How to turn off background extension effect in UISplitViewController?
@DTS Engineer What's the point of filing a bug report? Will it actually get fixed? I'm asking a serious question because I've already filed several iOS/iPadOS 26 bug reports related to UISplitViewController and UIKit. Several were reported against beta 1. Those bug reports include trivial sample apps and step-by-step instructions demonstrating the issue. None have been fixed as of iOS/iPadOS 26.0 GM. I also have several outstanding bug reports for broken functionality about UISearchController/UISearchBar under iOS/iPadOS 26. Again, several since beta 1. All include trivial test apps that demonstrate the issue. Again, none have been fixed. All of these outstanding issues are impacting my app. I'm very frustrated and disappointed. I'm sorry but I no longer have the ambition to file more bug reports that will never be fixed. I truly hope Apple gets back to the days of it just works. That era seems to be lost at the moment. Every year iOS and others are updated with lots of new features
Topic: UI Frameworks SubTopic: UIKit Tags:
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Can’t change Primary Language — blocked by “for each version” even after deleting all CPPs (8 weeks, 10+ replies)
For ~8 weeks (10+ support replies) I’ve been unable to switch my app’s Primary Language from en-CA to en-US. App Store Connect shows: “Primary Locale couldn’t be saved because you must first provide all the required screenshots for each version in this language.” State: Default product page has complete iPhone + iPad screenshots for en-US and en-CA (live/approved). Issue began before any CPP existed; I have since removed all CPPs. Error persists, which suggests a stale/ghost CPP localization still being validated, or other issues. Questions: What does “for each version” precisely validate (live / in-prep / historical; default vs CPP)? Can deleted/never-approved CPPs still be validated, and how can they be purged? Anyone seen this after CPP removal—what fixed it? Happy to DM an Apple Staffer the case ID, a HAR of the failed save, and a short screen recording. Thanks! P.S. This has been open for ~8 weeks; I’m seeking an engineering-owned view to identify the specific unmet validator requirement or confirm a pro
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Reply to tvOS 26 file corruption issues?
Hi - thanks for asking. My app will download a JSON file which contains a list of image urls which are downloaded and stored in the NSCachesDirectory. I understand the NSCachesDirectory can get deleted by the OS when the app is not running, so on subsequent launch, the app will check for the presence of these files in NSCachesDirectory and will redownload them if they are not available. This has worked pretty reliably in production for nearly two years. With tvOS 26, there are now inconsistent and sporadic instances when the app exhibits behavior as if these files have been deleted. ie. the images are either missing from the playlist page, or the app uses an onboard backup failsafe JSON file to populate a playlist with temporary data if it cannot find or load the JSON file. I suspect something is getting corrupted because once this issue occurs, the only way to get the app to perform normally again is to delete and reinstall the app. Simply relaunching the app will
Topic: App & System Services SubTopic: Core OS Tags:
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Reply to Instructions for debugging recent macos kernel versions?
Hello Kevin, uname -v on my local system shows: Darwin Kernel Version 24.6.0: Mon Jul 14 11:30:30 PDT 2025; root:xnu-11417.140.69~1/RELEASE_ARM64_T6020 so I've been using T6020 as the platform when building the kernel. The corresponding xnu source is this tag https://github.com/apple-oss-distributions/xnu/tree/xnu-11417.140.69 and the KDK is KDK_15.6_24G84.kdk. sw_vers shows me: sw_vers ProductName: macOS ProductVersion: 15.6 BuildVersion: 24G84 So I think that's the right KDK version for this system. I'm guessing the XCode version doesn't matter for these experiments (as long as the build succeeds), but for the record, I'm on XCode 16.4: xcodebuild -version Xcode 16.4 Build version 16F6 Apart from the other build instructions, the primary one I use to generate a DEVELOPMENT variant of the kernel is: export KDK=/Library/Developer/KDKs/KDK_15.6_24G84.kdk make SDKROOT=macosx KDKROOT=$KDK BUILD_WERROR=0 BUILD_JSON_COMPILATION_DATABASE=1 TARGET_CONFIGS=DEVELOPMENT ARM64 T6020 and then to generate a (bootable) kex
Topic: App & System Services SubTopic: Core OS Tags:
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AlarmKit plays system error tone instead of custom sound files (iOS 26.0)
AlarmKit custom sounds are universally broken in iOS 26.0 stable - instead of playing your custom sound, it plays a system error/timeout beep. I've spent days investigating why custom sounds result in what sounds like an error beep (like when you cancel an operation or hit a timeout) instead of the actual audio file. I can now prove this is an Apple bug, not implementation error. Evidence: Test 1: My Implementation Followed Apple's documentation exactly Tried both bundle and Library/Sounds (as documented) Result: System error beep (not my audio) Test 2: Professional Apps Tested ADHDAlarms (popular AlarmKit example by jacobsapps) https://github.com/jacobsapps/ADHDAlarms Their airhorn.mp3 custom sound: same error beep (not an airhorn) Their default sound: works perfectly Test 3: Device Testing Physical iPhone (iOS 26.0 - 23A341): broken iOS Simulator: broken Not device-specific Files are found correctly, but the actual audio file is never played. Instead, you hear what sounds like a s
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iOS 26 Voice Over is reporting an extra tab
Feedback number: FB20451665 When building with Xcode 26, Voice Over is reporting an extra tab when swiping through tabs. Please see the sample project below: /* This is a Sample project to show that I believe there is a Voice Over bug in iOS 26. When swiping through tabs with Voice Over active, there always appears to be an extra tab. Here I have 5 tabs, when on tab one VO reads out tab 1 of 6, then tab 2 of 6, all the way to the last tab, when voice over reads out tab 5 of 6. Never tab 6 of 6. Is there a possibility that voice over is picking up the underlying `more` tab and reading that out? This has also been reportedly found in the Files app here: https://www.applevis.com/comment/195441#comment-195441 */ struct ContentView: View { var body: some View { TabView { /// Activating this has Voice over telling us there are 6 Tabs. Tab(RootTab.home.title, systemImage: circle.fill) { Text(This is the (RootTab.home.title.capitalized) screen) } .accessibilityLabel((RootTab.home.title.capitalized) tab) .acc
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Xcode 26 app crashed
After switching from Xcode 16 to Xcode 26, the app crashes. It runs normally in Xcode 16 but crashes in Xcode 26. The stack trace is below. dyld[29371]: Library not loaded: /usr/lib/swift/libLiveExecutionResultsLogger.dylib Referenced from: /private/var/containers/Bundle/Application/306FCC79-E84A-4C54-ACBE-D1EC6A469560/BoxPlayer.app/BoxPlayer.debug.dylib Reason: tried: '/usr/lib/system/introspection/libLiveExecutionResultsLogger.dylib' (no such file, not in dyld cache), '/usr/lib/swift/libLiveExecutionResultsLogger.dylib' (no such file), '/private/preboot/Cryptexes/OS/usr/lib/swift/libLiveExecutionResultsLogger.dylib' (no such file), '/usr/lib/swift/libLiveExecutionResultsLogger.dylib' (no such file, not in dyld cache)
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Reply to Crash in libquic.dylib when app is backgrounded and issues an HTTP/3 request on iOS 26
Thanks for the crash report. We collected the crash logs from users online. So, does that mean that you can’t reproduce this yourself? Because in your original post you had “Reproduction Steps”, which suggests that this is something you can reproduce. Based on thread 8, it looks like you’re using a third-party crash reporter. That makes things difficult, as I explain in Implementing Your Own Crash Reporter. My advice is that you remove this crash reporter from your app and try to get a Apple crash report for this crash. Still, it’s probably worthwhile filing a bug with the info that you currently have. Please do that, and then post your bug number here. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
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Reply to URL Filter - blocked web page behaviour
I recommend that you report both of these via Feedback Assistant: Your first issue seems like a reasonable enhancement request. Your second issue seems like a bug. See Bug Reporting: How and Why? for general advice on how to file bugs effectively. Please post your bug numbers, just for the record. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
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