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Reply to Cannot generate 2048-bit FairPlay Streaming certificate
Hello, The files I received and the sizes are as below. (1) fps_certificate.bin: 2.51KB (2) provisioning_data.bin: 280B Though, I found out that the Apple's sample credential test_fps_certificate_v26.bin was also 1024-bit when I ran the openssl command. openssl x509 -in fps_certificate.bin -text -noout So, I suppose that this is the specification of FairPlay Streaming certificate? The reason why I got in question was that I could only generate SPC v2 request and not SPC v3 on iOS 26.2 or MacOS Sequoia (15.7.1). (Both on Safari browser).
Topic: Media Technologies SubTopic: Streaming Tags:
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USDZ model files when opened in Preview turns black
On macOS 26.2 (Tahoe), the Preview app fails to render many USDZ models correctly. The issue appears inconsistent: • Some USDZ files open normally in Preview • Some USDZ files open but the viewport turns completely black (no geometry, no material, no lighting) • All the same files open correctly when opened using “Open With → Xcode” This was not the behavior on macOS 15.7.2, where the exact same USDZ files rendered consistently in Preview without failures.
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Reply to Titles and Header Auto Changing Color?
I don't understand your test project article. Where do I put my test project? The test project shows the view with the problem header consisting of 5 files. One file has three different forms of the same structure to create the three images above.
Topic: Design SubTopic: General Tags:
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Reply to My app seems to cause Time Machine errors
My first thought was some kind of cross-platform PDF code that wasn't doing file coordination properly. But what you're showing is basic NSDocument file reading. However, NSDocument can get very complicated when writing. You said you're writing a viewer app. Are you sure you've specified the role for PDF as Viewer? There would have to be some other kind of change, possibly to attributes or permissions, in order for Time Machine to balk. Reading a file should be a no-op in that respect.
Topic: App & System Services SubTopic: Core OS Tags:
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Document Type Export / Import in Xcode - Shared via Messages
I’ve created a document type for my app and set it up in the Info Configuration in Xcode. This all works as expected: Implemented with the Transferrable API and ShareLink, I can share an app’s file via the Files app or Notes and then import the file via a Share extension and the fileImport swiftUI api. My question is regarding Messages, specifically. It appears as a ShareLink option and I’m able to send my app’s document type via a message, but I’m unable to open it or share it (internally, with my app), other than being able to forward or delete it. If I copy the file, I can’t access it within my app (it’s still stored in the Messages private bundle) and startAccessingSecurityScopedResource returns false as expected. The message does detect the right icon, so it’s recognizing the custom document type. If my Share Extension, exported document type, and transferable implementation is configured correctly, should I be able to open a file for my app shared via Message
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Reply to LLDB assertion failure when debugging Swift app
The last line of the message says: Please file a bug report against lldb reporting this failure log, and as many details as possible Let's start there — what is the FB of your report in Feedback Assistant? Further, make sure to include things like the Xcode version and the OS version you are debugging on, and to see if this reproduces with the latest Xcode version, currently Xcode 26.2. — Ed Ford,  DTS Engineer
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Reply to Seeing resources from another app in same Xcode project
Nope.. just two apps, I checked the headers and there is no crossover. I did copy and paste some items from the original project initially.. but I deleted those as the design matured. I think thats probably where the references are coming from. I did a grep on the project directory and the references don't occur in the project file for the app... no clue. I have cleaned the build, quit Xcode.. and they remain.
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Reply to Application Hangs with Nested LazyVStack When Accessibility Inspector is Active
Hello @mike sldkcjnsdmhvbsdh Thank you for documenting and providing workarounds. I am able to reproduce this issue and would like you to file a Bug Report. After that, please reply with the FB number in this thread. I will make sure it is seen by the relevant engineering team. In the report, I recommend sending the project as an attachment, we often look for attachments, and feel free to also include the GitHub link as your documentation is beyond helpful to us in our investigation and others who may run into this issue. If you have any questions about filing a bug report, take a look at Bug Reporting: How and Why? Thank you!  Travis Trotto - DTS Engineer
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Reply to Facing issue with fairplay Streaming server SDK 26.0.0
The Apache logs tell you what the problem is: Error reading certificate file (../credentials/test_certificates.json): Error Domain=NSCocoaErrorDomain Code=260 The file doesn’t exist.UserInfo={NSUnderlyingError=Error Domain=NSPOSIXErrorDomain Code=2 No such file or directory, NSURL=../credentials/test_certificates.json -- file:///home/azuki/, NSFilePath=/home/credentials/test_certificates.json} It's expecting to find the credentials in /home/credentials/ but they are not there, which means Apache wasn't running with the environment variable FPS_CERT_PATH set. If you cannot figure out how to set this variable for Apache in your environment, you could copy the credentials folder into /home/credentials/.
Topic: Media Technologies SubTopic: Streaming Tags:
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Reply to Error generating domain certificate
Hi, I wanted to let you know that I made changes related to TLS so it matches the cipher suite Apple uses. I configured the access rules so nothing is being blocked, and I ran tests using PowerShell and OpenSSL—every result returns HTTP/1.1 200 OK. I also verified that the URL Apple says it will use to validate the file under /.well-known works correctly and it does display the contents of the file. However, when I try to verify the domain in Apple’s portal, I still get the same error: “Domain verification failed.” Could you please help us with an alternative solution or any additional verification steps we should perform? Thank you.
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Reply to My app seems to cause Time Machine errors
I've written an PDF viewing app, and there seems to be a correlation between files opened by the app and files that Time Machine says couldn't be backed up. Can you post the full contents of the error logging you're seeing? Also, are these files stored on your boot volume or somewhere else (particularly an HFS+ volume)? It's possible there's an edge case I'm overlooking, but Time Machine’s general backup flow is to: Snapshot the source volume. Backup the contents of the snapshot. (eventually) delete the backup. The major benefit of this is that it improves overall backup quality, as you're backing up a single moment in time, not a spread of time. However, it also means that your app’s own interactions with your files shouldn't really matter, as Time Machine isn't actually backing up the same file as the one you have open. __ Kevin Elliott DTS Engineer, CoreOS/Hardware
Topic: App & System Services SubTopic: Core OS Tags:
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Reply to Guided Access - Detect when setup (Eyes + Hands) is done
Hi @StudioNeueMuseen There's no supported way for you to query gaze enrollment status or receive a notification when it changes with the APIs currently available. If you'd like us to consider adding the necessary functionality, please file an enhancement request using Feedback Assistant. Once you file the request, please post the FB number here. If you're not familiar with how to file enhancement requests, take a look at Bug Reporting: How and Why?
Topic: Spatial Computing SubTopic: General Tags:
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Reply to filecopy fails with errno 34 "Result too large" when copying from NAS
Thanks for all the details and the funny anecdote. I'll ask the user to run the cp command, but they told me they have some other work to do at the moment and need a break. In the meantime, since you said it's a SMB issue, is there a way I can reproduce the Result too large myself? Yes. To start with here: Setting a large resource fork like mentioned in that StackOverflow post causes the mentioned error Argument list too long. Was this on your SMB target or on your local (APFS) volume? If this is happening on the local volume, then I think the problem is that you're hitting the max transfer size limitation of fsetxattr. You need to break the transfer up into smaller individual segments, as copyfile does here. As a side note here, there's an open question here as to how the problem file originally got to the SMB server. On modern systems, we primarily use the resource fork to store compressed data (as I described above), but we also got out of our way to NOT export that configuration out of the system
Topic: App & System Services SubTopic: Core OS Tags:
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