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Reply to 26.4 beta and RC versions are unable to be created on anything but 26.4 beta host OS
[quote='880896022, kthchew, /thread/819456?answerId=880896022#880896022, /profile/kthchew'] FB22286320 [/quote] Thanks for filing that. [quote='880953022, kthchew, /thread/819456?answerId=880953022#880953022, /profile/kthchew'] is it possible that your work Mac has access to an internal software update server … ? [/quote] It’s certainly possible, but I usually keep a tight reign on this Mac to prevent that sort of thing. Anyway, based on the fact that multiple folks on this thread are reporting this issue, I think it warrants investigation by the Virtualization team. If you’re hitting this, please file a bug with the details and then post the bug number here. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: App & System Services SubTopic: Core OS Tags:
1w
Reply to FSKit passthrough sample fails to mount
[quote='880826022, alexfs123, /thread/819160?answerId=880826022#880826022, /profile/alexfs123'] Shouldn't unmount attempt to close it automatically … ? [/quote] Well, sure, if that’s what’s actually going on here. My hope was that lsof would provide evidence either way. [quote='880826022, alexfs123, /thread/819160?answerId=880826022#880826022, /profile/alexfs123'] I already unmounted it [/quote] So repeating the same steps doesn’t reproduce the issue? Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: App & System Services SubTopic: Core OS Tags:
1w
Reply to Expected behavior of searchDomains
[quote='880876022, akshit_ak, /thread/814494?answerId=880876022#880876022, /profile/akshit_ak'] Based on the code you linked to, there might be a bug [/quote] OK. In that case my advice is that you file a bug with your evidence so that the relevant engineers can look at this. Please post your bug number, just for the record. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
1w
Reply to AXSpeech Thread Crash SEGV_ACCERR
Thanks for those crash reports. Are you able to find a JSON crash report (.ips) for this? If so, please post it, because it may allow me to learn more about the issue. In the absence of that then, yeah, at first blush this is looks like an Apple problem rather than a problem with your code. Consider the crashing thread from your first crash report: Thread 22 name: Thread 22 Crashed: 0 CoreFoundation … __CFCheckCFInfoPACSignature + 4 (CFRuntime.c:559) 1 CoreFoundation … CFRunLoopSourceSignal + 28 (CFRunLoop.c:4312) 2 Foundation … performQueueDequeue + 484 (NSThread.m:1063) 3 Foundation … __NSThreadPerformPerform + 88 (NSThread.m:1077) 4 CoreFoundation … __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1970) 5 CoreFoundation … __CFRunLoopDoSource0 + 172 (CFRunLoop.c:2014) 6 CoreFoundation … __CFRunLoopDoSources0 + 332 (CFRunLoop.c:2059) 7 CoreFoundation … __CFRunLoopRun + 840 (CFRunLoop.c:2969) 8 CoreFoundation … CFRunLoopRunSpecific + 572 (CFRunLoop.c:3434) 9 Foundation … -[NSRunLoo
1w
Reply to spctl --type install rejects notarized .pkg on macOS 26 Tahoe (26.3)
[quote='880810022, kappie, /thread/817887?answerId=880810022#880810022, /profile/kappie'] Here's the direct download link to the installer package: [/quote] That link doesn’t work for me (I get a 404). This: [quote='880810022, kappie, /thread/817887?answerId=880810022#880810022, /profile/kappie'] The productbuild --sign does emit Warning: unable to build chain to self-signed root [/quote] is very concerning. It suggests that the signature was created without the full certificate chain, which could easily cause problems like this. When signing code, rather than an installer package, this is actually a hard failure. I talk about it in detail in Resolving errSecInternalComponent errors during code signing and the associated Fixing an untrusted code signing certificate. So: You should definitely do what you can to investigate and resolve the unable to build chain to self-signed root warning. If that doesn’t pan out, reply back here with a download link that works and I’ll take a look. Share and Enjoy — Quinn “The
Topic: Code Signing SubTopic: Notarization Tags:
1w
Reply to macOS Tahoe 26.4 Beta 4: Rosetta deprecation warning not shown — bug or intended behavior?
[quote='880992022, shara7, /thread/818906?answerId=880992022#880992022, /profile/shara7'] Could you tell me whether these log entries … ? [/quote] No, sorry. I have limited time to spend on the forums, and I prefer to spend that time helping folks with code-level problems. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: App & System Services SubTopic: Core OS Tags:
1w
Reply to Securing XPC Daemon Communication from Authorization Plugin
[quote='881033022, robonaren, /thread/819553?answerId=881033022#881033022, /profile/robonaren'] Here are the specific requirement i've tried [/quote] So anchor apple generic is definitely wrong. Consider this quote from Code Signing Requirement Language: For Apple’s own code, signed by Apple, you can use the short form anchor apple For code signed by Apple, including code signed using a signing certificate issued by Apple to other developers, use the form anchor apple generic If your goal is security, you don’t want to mix these up! [quote='881053022, robonaren, /thread/819553?answerId=881053022#881053022, /profile/robonaren'] Here are the specific requirement i'm using from the Authorization Plugin (xpc client) [/quote] From the client? Maybe I’ve misunderstood this, but that seems backwards. You want to apply these constraints on the server for connections coming from the client. Consider this: % csreq -r '=anchor apple and (identifier com.apple.authorizationhosthelper.arm64 or identifier com.apple.authoriz
1w
Reply to Face ID (LAContext) authenticate() causes SIGABRT crash immediately on iOS (Flutter local_auth)
The most common cause of this problem is that you’ve forgotten to include the NSFaceIDUsageDescription property in your Info.plist. If that’s not the cause here, please post a crash report so that I can look into that. See Posting a Crash Report for advice on how to do this. IMPORTANT I don’t maintain expertise in third-party tools, so I’m gonna help you as if you were working on Xcode. Hopefully we can get you to the point where we know for sure whether this is a Flutter thing or an Apple thing. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
1w
Reply to Triggering “realtime” mode for peer-to-peer WiFi via awdl to fix jitter problems
[quote='819926021, craigc123, /thread/819926, /profile/craigc123'] is there any way to programmatically trigger “realtime” mode? [/quote] No. Well: Not as an API that’s documented to have that effect. It might be possible to find some API that does it as a side effect, but that would be an implementation detail and thus not something you’d want to rely on. And there’s the Wi-Fi Aware option, but you’ve ruled that out. I think you should create a prototype based on Wi-Fi Aware and see if it achieves the latency goals that you need. If it does, you can then factor that into your decision as to how to proceed here. And apropos that, you wrote: [quote='819926021, craigc123, /thread/819926, /profile/craigc123'] I am looking for a solution that works … on previous OS versions. [/quote] Note that Wi-Fi Aware requires iOS 26 and specific hardware. The main framework doc page has the list. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple
1w
Reply to Attached macro loses generated source file
[quote='819975021, tiandt, /thread/819975, /profile/tiandt'] I’m seeing what looks like a compiler / macro-expansion / build-pipeline issue. [/quote] Agreed. I recommend that you file a bug about this. Please post your bug number, just for the record. If you use Xcode to expand the macro, what does it show? Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Programming Languages SubTopic: Swift Tags:
1w
Reply to FIFinderSync Extension fails to load on FIFinderSync Extension fails to load on macOS 26.3.1 (a) (25D771280a)
If you set up a VM that’s never seen your app before and repeat this test on that VM [1], does it have the same problem. I’ve hunted app extension problems like this in the past, and it was always caused by weird issue on my main work Mac. Specifically, old school app extensions [2] rely PluginKit which relies on Launch Services, and it’s very common for Launch Services to behave weirdly on your main development Mac. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com [1] You don’t need to build on the VM. Rather, build on your main Mac and then copy the built app to the VM. [2] Modern app extension are based on ExtensionKit rather than PluginKit, but they also rely on Launch Services.
1w
Reply to Swift Student Challenge Results
For context, that date was announced in Developer > WWDC26 > Special Event. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
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1w
Reply to Need help learning security and persistence for Swift!!!
Oh, and regarding the “sensitive language” issue, I’m sorry about the confusion there. I tracked it down to a misguided content filter [1], which has now been reeducated (i. 101267407). Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com [1] It didn’t like the word diploma.
Topic: Privacy & Security SubTopic: General Tags:
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Reply to 26.4 beta and RC versions are unable to be created on anything but 26.4 beta host OS
[quote='880896022, kthchew, /thread/819456?answerId=880896022#880896022, /profile/kthchew'] FB22286320 [/quote] Thanks for filing that. [quote='880953022, kthchew, /thread/819456?answerId=880953022#880953022, /profile/kthchew'] is it possible that your work Mac has access to an internal software update server … ? [/quote] It’s certainly possible, but I usually keep a tight reign on this Mac to prevent that sort of thing. Anyway, based on the fact that multiple folks on this thread are reporting this issue, I think it warrants investigation by the Virtualization team. If you’re hitting this, please file a bug with the details and then post the bug number here. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: App & System Services SubTopic: Core OS Tags:
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1w
Reply to FSKit passthrough sample fails to mount
[quote='880826022, alexfs123, /thread/819160?answerId=880826022#880826022, /profile/alexfs123'] Shouldn't unmount attempt to close it automatically … ? [/quote] Well, sure, if that’s what’s actually going on here. My hope was that lsof would provide evidence either way. [quote='880826022, alexfs123, /thread/819160?answerId=880826022#880826022, /profile/alexfs123'] I already unmounted it [/quote] So repeating the same steps doesn’t reproduce the issue? Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: App & System Services SubTopic: Core OS Tags:
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1w
Reply to Expected behavior of searchDomains
[quote='880876022, akshit_ak, /thread/814494?answerId=880876022#880876022, /profile/akshit_ak'] Based on the code you linked to, there might be a bug [/quote] OK. In that case my advice is that you file a bug with your evidence so that the relevant engineers can look at this. Please post your bug number, just for the record. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
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1w
Reply to AXSpeech Thread Crash SEGV_ACCERR
Thanks for those crash reports. Are you able to find a JSON crash report (.ips) for this? If so, please post it, because it may allow me to learn more about the issue. In the absence of that then, yeah, at first blush this is looks like an Apple problem rather than a problem with your code. Consider the crashing thread from your first crash report: Thread 22 name: Thread 22 Crashed: 0 CoreFoundation … __CFCheckCFInfoPACSignature + 4 (CFRuntime.c:559) 1 CoreFoundation … CFRunLoopSourceSignal + 28 (CFRunLoop.c:4312) 2 Foundation … performQueueDequeue + 484 (NSThread.m:1063) 3 Foundation … __NSThreadPerformPerform + 88 (NSThread.m:1077) 4 CoreFoundation … __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1970) 5 CoreFoundation … __CFRunLoopDoSource0 + 172 (CFRunLoop.c:2014) 6 CoreFoundation … __CFRunLoopDoSources0 + 332 (CFRunLoop.c:2059) 7 CoreFoundation … __CFRunLoopRun + 840 (CFRunLoop.c:2969) 8 CoreFoundation … CFRunLoopRunSpecific + 572 (CFRunLoop.c:3434) 9 Foundation … -[NSRunLoo
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1w
Reply to Strange crash in iOS AudioToolboxCore when using AVSpeechSynthesizer in iOS 16
Ah, I see you reanimated two different threads about this issue. I’ll respond over on the other one. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Media Technologies SubTopic: Audio Tags:
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1w
Reply to spctl --type install rejects notarized .pkg on macOS 26 Tahoe (26.3)
[quote='880810022, kappie, /thread/817887?answerId=880810022#880810022, /profile/kappie'] Here's the direct download link to the installer package: [/quote] That link doesn’t work for me (I get a 404). This: [quote='880810022, kappie, /thread/817887?answerId=880810022#880810022, /profile/kappie'] The productbuild --sign does emit Warning: unable to build chain to self-signed root [/quote] is very concerning. It suggests that the signature was created without the full certificate chain, which could easily cause problems like this. When signing code, rather than an installer package, this is actually a hard failure. I talk about it in detail in Resolving errSecInternalComponent errors during code signing and the associated Fixing an untrusted code signing certificate. So: You should definitely do what you can to investigate and resolve the unable to build chain to self-signed root warning. If that doesn’t pan out, reply back here with a download link that works and I’ll take a look. Share and Enjoy — Quinn “The
Topic: Code Signing SubTopic: Notarization Tags:
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1w
Reply to Getting a basic URL Filter to work
[quote='880858022, KayleeSC, /thread/791352?answerId=880858022#880858022, /profile/KayleeSC'] added to the same bug [/quote] I see that. Thanks! Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
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1w
Reply to macOS Tahoe 26.4 Beta 4: Rosetta deprecation warning not shown — bug or intended behavior?
[quote='880992022, shara7, /thread/818906?answerId=880992022#880992022, /profile/shara7'] Could you tell me whether these log entries … ? [/quote] No, sorry. I have limited time to spend on the forums, and I prefer to spend that time helping folks with code-level problems. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: App & System Services SubTopic: Core OS Tags:
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1w
Reply to Securing XPC Daemon Communication from Authorization Plugin
[quote='881033022, robonaren, /thread/819553?answerId=881033022#881033022, /profile/robonaren'] Here are the specific requirement i've tried [/quote] So anchor apple generic is definitely wrong. Consider this quote from Code Signing Requirement Language: For Apple’s own code, signed by Apple, you can use the short form anchor apple For code signed by Apple, including code signed using a signing certificate issued by Apple to other developers, use the form anchor apple generic If your goal is security, you don’t want to mix these up! [quote='881053022, robonaren, /thread/819553?answerId=881053022#881053022, /profile/robonaren'] Here are the specific requirement i'm using from the Authorization Plugin (xpc client) [/quote] From the client? Maybe I’ve misunderstood this, but that seems backwards. You want to apply these constraints on the server for connections coming from the client. Consider this: % csreq -r '=anchor apple and (identifier com.apple.authorizationhosthelper.arm64 or identifier com.apple.authoriz
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1w
Reply to Face ID (LAContext) authenticate() causes SIGABRT crash immediately on iOS (Flutter local_auth)
The most common cause of this problem is that you’ve forgotten to include the NSFaceIDUsageDescription property in your Info.plist. If that’s not the cause here, please post a crash report so that I can look into that. See Posting a Crash Report for advice on how to do this. IMPORTANT I don’t maintain expertise in third-party tools, so I’m gonna help you as if you were working on Xcode. Hopefully we can get you to the point where we know for sure whether this is a Flutter thing or an Apple thing. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
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1w
Reply to Triggering “realtime” mode for peer-to-peer WiFi via awdl to fix jitter problems
[quote='819926021, craigc123, /thread/819926, /profile/craigc123'] is there any way to programmatically trigger “realtime” mode? [/quote] No. Well: Not as an API that’s documented to have that effect. It might be possible to find some API that does it as a side effect, but that would be an implementation detail and thus not something you’d want to rely on. And there’s the Wi-Fi Aware option, but you’ve ruled that out. I think you should create a prototype based on Wi-Fi Aware and see if it achieves the latency goals that you need. If it does, you can then factor that into your decision as to how to proceed here. And apropos that, you wrote: [quote='819926021, craigc123, /thread/819926, /profile/craigc123'] I am looking for a solution that works … on previous OS versions. [/quote] Note that Wi-Fi Aware requires iOS 26 and specific hardware. The main framework doc page has the list. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple
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1w
Reply to Attached macro loses generated source file
[quote='819975021, tiandt, /thread/819975, /profile/tiandt'] I’m seeing what looks like a compiler / macro-expansion / build-pipeline issue. [/quote] Agreed. I recommend that you file a bug about this. Please post your bug number, just for the record. If you use Xcode to expand the macro, what does it show? Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Programming Languages SubTopic: Swift Tags:
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Reply to FIFinderSync Extension fails to load on FIFinderSync Extension fails to load on macOS 26.3.1 (a) (25D771280a)
If you set up a VM that’s never seen your app before and repeat this test on that VM [1], does it have the same problem. I’ve hunted app extension problems like this in the past, and it was always caused by weird issue on my main work Mac. Specifically, old school app extensions [2] rely PluginKit which relies on Launch Services, and it’s very common for Launch Services to behave weirdly on your main development Mac. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com [1] You don’t need to build on the VM. Rather, build on your main Mac and then copy the built app to the VM. [2] Modern app extension are based on ExtensionKit rather than PluginKit, but they also rely on Launch Services.
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1w