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Building for iOS Simulator, but the linked and embedded framework ‘XX.framework‘ was built for

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Reply to Tahoe 26.2 and Xcode
Oh thanks! That might work. I had only tried Xcode 16. I need to be able to work on the project at home and in the college lab. My current home projects won't build in college. There will also be an issue with grading of assignments. I'll try Xcode 16.4. Will that work in college I wonder? They have Xcode 16? I'll try anyway. Thanks so much for you reply!
Topic: Developer Tools & Services SubTopic: Xcode Tags:
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Tahoe 26.2 and Xcode
I need to use Xcode version 16 for a college project. However, I cannot install it on my mac. M2Pro - ios Tahoe 26.2. Is there any workaround for this? Is my best option to downgrade to Sequoia? I'm a little apprehensive about this but willing to give it a try. Can anyone recommend a good, reliable video for this?
Topic: Developer Tools & Services SubTopic: Xcode Tags:
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Virtual Machine UDID Changes in macOS 15: Looking for Guidance on Development Workflow
Hello, We're developing endpoint security software using the Endpoint Security framework, and we've encountered challenges with the behavior change in macOS 15 regarding provisioning UDIDs in cloned VMs. The Change Prior to macOS 15, cloning a VM preserved its UDID (format: 0000FE00-9C4ED9F68BBDC72D). Starting with macOS 15, cloned VMs receive a new UDID generated from the host's Secure Enclave (format: b043d27202c7ac37ca3c6b82673302225485cae9), making each clone effectively a new device. Our Workflow We maintain a clean base VM image and clone it for each test run. We add the base VM's UDID to our provisioning profile once, then create clones which (previously) retained that same UDID, allowing us to start new testing cycles without re-registering devices. This is essential because our product involves low-level system integration through the Endpoint Security framework, and if something goes wrong during development, it has the potential to affect system stability. To prevent any cascading
Topic: App & System Services SubTopic: Core OS Tags:
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Reply to com.apple.developer.payment-pass-provisioning missing in TestFlight build despite provisioning profile having it
Hi Quinn, I followed your steps and the profile dump is as below. It has com.apple.developer.payment-pass-provisioning => 1 : { AppIDName => XC com s_ _ _ _ _ _ d ApplicationIdentifierPrefix => [ 0 => 2 _ _ _ _ _ _ 7 ] CreationDate => 2026-02-05 15:09:44 +0000 DER-Encoded-Profile => {length = 3857, bytes = 0x30820f0d 06092a86 4886f70d 010702a0 ... 73b0c49b eb3ffec9 } DeveloperCertificates => [ 0 => {length = 1487, bytes = 0x308205cb 308204b3 a0030201 02021007 ... b474d99f 14730350 } ] Entitlements => { application-identifier => 2 _ _ _ _ _ _ 7.com.s _ _ _ _ _ _ d aps-environment => production beta-reports-active => 1 com.apple.developer.associated-domains => com.apple.developer.in-app-payments => [ 0 => merchant.com.s_ _ _ _ _ _ d ] com.apple.developer.networking.slicing.appcategory => [ 0 => communication-9000 1 => games-6014 2 => streaming-9001 ] com.apple.developer.networking.slicing.trafficcategory => [ 0 => defaultslice-1 1 => video-2 2 =
Topic: Code Signing SubTopic: Entitlements Tags:
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Reply to [FB21797091] Regression: Universal Links/AASA Fetching Fails for IDN on iOS 16+
Thank you, Albert. I have already filed this issue as FB21797091 at the beginning of this thread. I have now added additional diagnostic information to that existing report, including: Detailed swcutil_show.txt comparison between IDN and ASCII domains Entitlement configurations tested over 3 years Testing timeline across iOS 16, 17, and 18 Please reference FB21797091 for the complete bug report. Thank you for your assistance in escalating this issue.
Topic: App & System Services SubTopic: General Tags:
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Reply to Cannot Preview in this file. Simulator was shutdown during an update.
It looks like the underlying issue is still not resolved, and the only workaround is to give things enough time to complete. My suggestion would be to: build+run your app targeting the iOS simulator. This will launch the simulator app and start booting the simulator wait until the simulator finishes launching and your application is now running in it. Please note, the bug is that step 2 takes longer than it should so this is where you'll need to exercise patience. Once that successfully completes you can then quit the simulator, and then try the preview again. This time we'd expect things to work in the preview canvas since the simulator runtime has been primed.
Topic: Developer Tools & Services SubTopic: Xcode Tags:
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Reply to Expected behavior of searchDomains
Thanks for those answers. The ultimate consumer of the matchDomainsNoSearch property is actually in Darwin, so you can see how the code works. Start here. As you can see, the behaviour is pretty straightforward: If that property is set, it skips the code that adds the match domains to the search domains. However, it’s still not obvious why this is affecting your setup. One possibility relates to the example you included in your original post, where you have test.com in both the search domains and the match domains. In that case setting matchDomainsNoSearch causes it to add the match domains to the search domains, as shown by the code referenced above, and that code can change the order of items in the search domains. However, without knowing exactly how this is set up, it’s hard to tell whether that’s relevant here. I realise that you’re testing this on iOS, but do you also have the ability to test on macOS as well? If so, you could take advantage of macOS’s additional debugging features to learn mor
Topic: App & System Services SubTopic: Networking Tags:
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Bug? SwiftData + inheritance + optional many-to-one relationship
I've spent a few months writing an app that uses SwiftData with inheritance. Everything worked well until I tried adding CloudKit support. To do so, I had to make all relationships optional, which exposed what appears to be a bug. Note that this isn't a CloudKit issue -- it happens even when CloudKit is disabled -- but it's due to the requirement for optional relationships. In the code below, I get the following error on the second call to modelContext.save() when the button is clicked: Could not cast value of type 'SwiftData.PersistentIdentifier' (0x1ef510b68) to 'SimplePersistenceIdentifierTest.Computer' (0x1025884e0). I was surprised to find zero hit when Googling Could not cast value of type 'SwiftData.PersistentIdentifier'. Some things to note: Calling teacher.computers?.append(computer) instead of computer.teacher = teacher results in the same error. It only happens when Teacher inherits Person. It only happens if modelContext.save() is called both times. It works if the first modelContext.save() is com
Topic: App & System Services SubTopic: iCloud & Data Tags:
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Reply to System Panic with IOUserSCSIParallelInterfaceController during Dispatch Queue Configuration
Hi Kevin, During the implementation of batch task buffer mapping, we observed an inconsistency between API return values and actual memory addresses, which leads to an immediate system Panic (Kernel Data Abort). Inside the implementation of UserMapBundledParallelTaskCommandAndResponseBuffers, we performed the following operations on the Response Buffer: We invoked CreateMapping(0, 0, 0, 0, 0, &ivars->fResponseMap) on the provided parallelResponseIOMemoryDescriptor. CreateMapping returns kIOReturnSuccess, and the resulting ivars->fResponseMap object pointer is non-null. However, a subsequent call to ivars->fResponseMap->GetAddress() returns NULL (0x0). After the DEXT returns from UserMapBundledParallelTaskCommandAndResponseBuffers with this NULL address, the system immediately triggers a Panic when the kernel attempts to process subsequent discovery commands (e.g., Inquiry). Panic Type: Kernel data abort Fault Address (FAR): 0x0000000000000000 Exception Class (ESR): 0x96000006 (Translation Faul
Topic: App & System Services SubTopic: Drivers Tags:
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Reply to App Startup with Debugger in Xcode 26 is slow
I have attempted to use Xcode 26.2 with a device running iOS 26.2, same configuration as in the original post, and I don't find the user experience to have improved one bit: app startup takes ages before I even see my UIWindow and UIViewController on screen starting without debugger and attaching afterwards causes the app to lag horribly, which was not a problem originally when I only started to try Xcode 26.0
Topic: Developer Tools & Services SubTopic: Xcode Tags:
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SwiftUI View Stops Updating When Using @Environment - Xcode 26
Hi all - i'm encountering a strange issue since updating to Xcode 26.0.1. It seems that any SwiftUI Views that have an :ObservedObject property that contains @Published properties, and use those properties inside the View, no longer update when those properties are updated when the view also has an @Environment property. If I remove the @Environment property and any usage of it, the view updates correctly. The specific environment property i'm using is .safeAreaInsets, like so: @Environment(.safeAreaInsets) private var safeAreaInsets Is this a recognised bug in the latest iOS 26 SDK? Thanks
Topic: UI Frameworks SubTopic: SwiftUI Tags:
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Reply to Custom NSWindow styleMask behavior changed/broken resulting in unresizable or non-responsive windows in macOS Tahoe 26.3 RC
@Frameworks Engineer We also encountered an issue with transparent NSWindows on 26.3 RC (FB21879511). On 26.3 RC, mouse events are intercepted by the entire transparent window rather than only the opaque regions. As a result, any third-party app that uses full-screen overlay windows blocks system interactions while the overlay is present on the screen.
Topic: UI Frameworks SubTopic: AppKit Tags:
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