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Reply to NSFileSandboxingRequestRelatedItemExtension: Failed to issue extension
I have a SwiftUI app that opens a user-selected audio file (wave). For each audio file, an additional file exists containing events that were extracted from the audio file. This additional file has the same filename and uses the extension bcCalls. I load the audio file using FileImporter view modifier and then access the audio file with a security-scoped bookmark. That works well. To clarify here, do you mean that you’re able to access both the directly selected file and its related sidecar? Or just that you're able to access the direct file? After loading the audio, I create a CallsSidecar NSFilePresenter with the URL of the audio file. I make the presenter known to the NSFileCoordinator and then add it to the FileCoordinator. This fails with NSFileSandboxingRequestRelatedItemExtension: Failed to issue extension for; Error Domain=NSPOSIXErrorDomain Code=3 No such process Is the failure here about opening an existing file
Topic: App & System Services SubTopic: Core OS Tags:
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Reply to Xcode Metal Trace
Our engineering teams need to investigate this issue, as resolution may involve changes to Apple's software. Please file a bug report, include a small Xcode project and some directions that can be used to reproduce the problem, and post the Feedback number here once you do. I'll check the status next time I do a sweep of forums posts where I've suggested bug reports and post any information about changes I am able to share to this thread. Bug Reporting: How and Why? has tips on creating your bug report.
Topic: Graphics & Games SubTopic: Metal Tags:
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Reply to Dell monitor volume control issue on iMac via USB-C
Our engineering teams need to investigate this issue, as resolution may involve changes to Apple's software. Please file a bug report, include a small Xcode project and some directions that can be used to reproduce the problem, and post the Feedback number here once you do. I'll check the status next time I do a sweep of forums posts where I've suggested bug reports and post any information about changes I am able to share to this thread. Bug Reporting: How and Why? has tips on creating your bug report.
Topic: Media Technologies SubTopic: Audio Tags:
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Reply to Incorrect website rendering under iOS 26.2
Thank you for filing FB21749211. I added some notes to your bug report referring to this forums post. I'll check the status again later. Please continue testing your software in new system software updates and beta releases as they become available. And please update the status of your bug whenever you do a new test. Please see https://developer.apple.com/download/ for the most recent beta releases.
Topic: Safari & Web SubTopic: General Tags:
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Reply to Purchase Intent does not work when app has been launched
@lionelng Thank you for filing Feedback FB21767675. The current status of your Feedback can be viewed in Feedback Assistant under Resolution. You can track if the report is still being investigated, has a potential identified fix, or has been resolved in another way. For more details on Feedback Status, please see “Understanding the Status of Your Feedback” linked here: https://developer.apple.com/bug-reporting/status.
Topic: App & System Services SubTopic: StoreKit Tags:
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Reply to PDF Services directory is missing and creating takes two steps
I did file a bug, FB21763493 Perfect, thank you. I did try using the security-scoped bookmark for creating the PDF Services directory but didn't think I needed to then create a new security-scoped bookmark for the newly created directory. FYI, the rules that control exactly what content an app will have access to aren't well defined and, more to the point, they've absolutely had and will change over time. The best way around this is to make sure you're preserving the specific access you actually need. In a similar vein... I also tried using the Save dialog to create the directory and workflow and, you are correct, it is a bit weird :-) but it worked. ...this is always going to be the safest option as, weird or not, it creates a situation where your app is specifically being told what to do by the user. Finally, one recommendation I have ANY time you're using a bookmark is to ALWAYS provide some mechanism that lets the user restore access to the target through an open/save panel. Bookmarks work very w
Topic: App & System Services SubTopic: Core OS Tags:
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Reply to Shortcut - “Use Model” error handling?
Oh, I thought you were writing your own shortcuts that use the models, which completely missed your point. Sorry for that. The answer then is that there is currently no way to detect an error from an action. I checked with the Shortcuts folks and they suggested that you file a feedback report with your use case to request the support of try-catch in Shortcuts – If you do so, please share your report ID here. Best, —— Ziqiao Chen  Worldwide Developer Relations.
Topic: Machine Learning & AI SubTopic: General Tags:
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CKSyncEngine initial sync on a new device
I have implemented CKSyncEngine synchronization, and it works well. I can update data on one device and see the changes propagate to another device quickly. However, the initial sync when a user downloads the app on a new device is a significant issue for both me and my users. One problem is that the sync engine fetches deletion events from the server. On a new device, the local database is empty, so these deletions are essentially no-ops. This would not be a big problem if there were only a few records or if it was fast. I measured the initial sync and found that there are 150 modified records and 62,168 deletions. Counting these alone takes over five minutes, even without processing them. The deletions do nothing because the local database has nothing to delete, yet they still add a significant delay. I understand that the sync engine ensures consistency across all devices, but five minutes of waiting with the app open just to insert a small number of records is excessive. The problem would be worse if ther
Topic: App & System Services SubTopic: iCloud & Data Tags:
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Reply to Catalyst: determine the device information when running on Mac
Thanks, Quinn! What specific information are you looking for here? Well ... information of the device and operating system the code really runs on would be sort of nice. It's pretty weird to ask the code which runs on Mac for the device it runs on and get “iPad”. I could understand this when running as “Designed for iPad”, in which case the code might really need to be lied to, for it was designed for iSomething originally. But in the Catalyst mode, where the code is designed for Mac, it seems really at the strange side. And what do you plan to do with that information? At this moment, I just wanted to save it for possible further interest, along with other things my application stores (see please below). Currently the only practical part would be to determine whether I can store my data into any file in any folder (as on Mac), or whether I should stick with Application Support sub-folders (as on iWhatever). Given that, I’m not sure Mac Catalyst is your best option Well the main purpose of my applica
Topic: App & System Services SubTopic: Core OS Tags:
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Reply to Sell UI patent to Apple
Feature requests and enhancements can be submitted through Feedback Report here. However, my tip is to state clearly the enhancement and file one issue per report, to ensure accurate processing. Reports that discuss multiple issues aren’t actionable and may be returned for resubmission as separate reports.  Travis Trotto - DTS Engineer
Topic: Design SubTopic: General
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MetalToolchain download fails on macOS 26.2, build 17C48 catalog error
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
Topic: Developer Tools & Services SubTopic: Xcode
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Reply to What does CoreMediaErrorDomain code -15418 indicate during LL-HLS live playback?
It appears that the LL HLS playlist provided is missing the required EXT-X-RENDITION-REPORT. That leads to the player dropping out of low latency mode. Note that the spec requires that every LL-HLS Media Playlist contain a Rendition Report for every other Media Playlist in the MVP Should you find that a missing rendition report is not the issue, please file a bug report following steps at https://developer.apple.com/services-account/download?path=/iOS/iOS_Logs/CoreMedia_Logging_Instructions.pdf
Topic: Media Technologies SubTopic: Streaming Tags:
3w
Reply to Icon label's missing
Hello! This doesn't sound right, and is probably a bug. But to be sure, we need some more information to investigate Can you please file a bug report and include a video recording of you experiencing the issue? This site will walk you through the steps, https://developer.apple.com/bug-reporting/ You can tell me what the Feedback ID is for this issue and I'll make sure it gets to the right team to investigate.
Topic: Accessibility & Inclusion SubTopic: General
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