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iOS 26.2 Platform support failed download
I've recently updated to Xcode 26.3 and I can't download any iOS Simulator Runtime from 26.2 to 18.0, every download gives me: Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = 2026-03-03 16:14:50 +0000; } -- Download failed. Domain: DVTDownloadableErrorDomain Code: 41 -- System Information macOS Version 26.4 (Build 25E5218f) Xcode 26.3 (24587) (Build 17C529) Timestamp: 2026-03-03T17:14:50+01:00 I tried cleaning every cache, and logging in and out of my account. I saw some reddit posts where they suggested to check out VPNs, host files and other stuff but everything was okay, also I can reach apple cdns etc. I also tried using Xcode beta 26.4 and going back to 26.2 but still the same problem. Anyone has a solution?
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Trouble installing Xcode 23.0.1
I was having an issue with the new xcode and was forced to to go back to to Xcode 26.0.1. ( I need iOS simulators for mobile testing and as Developer I know is using this version with no problems). I've always install xcode from the app store with no issue so installing from Apple Dev was something new for me so So I did the following downloaded Xcode 26.0.1 Extracted it from Xzip added the extracted Xcode version to the applications folder click the Xcode icon Expected result I was expecting to see text i could install Xcode version Actual Result Xcode opened Asked me to create a project When project was created I saw Question. What did I do wrong? How do I fix it?
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tvOS Simulator (also Xcode Canvas) Mapview Artifacts After Xcode Crash (26.3)
Have a peculiar problem I'm not able to solve. Working on an app with a mapview in the max zoomed out globe level. For some reason this morning Xcode froze/crashed when I was working and I had to force quit to get it back up. Then a new issue of graphical artifacts on the space section of the Mapview showed up. This Tuesday has now been spent in full on trying to solve this to no avail. I created a new project for iOS/iPadOS and added a similar map implementation. It works fine. I used Claude to help me after a few reinstalls of Xcode with this. I asked claude to summarize - this is what has been done: Claude generative AI summary starts here---------- Here's a complete summary of everything attempted: The Problem SwiftUI tvOS app with MapKit globe view showing severe rendering artifacts — corrupted pixels surrounding the globe. Started after Xcode crashed while the tvOS simulator was actively running. iOS simulator, macOS Maps app, and all native apps work perfectly. Only tvOS simu
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Reply to Getting a basic URL Filter to work
That’s what was happening last night 😅 Currently (on the latest beta), I always get that error when trying to activate the TestFlight build. However, some testers have reported being able to activate 🤷‍♀️ But (still on the latest beta) versions installed from Xcode eventually activate. They flip many times between “busy” and “error” before tho, but that’s not new. It takes like a minute for the NEURLFilterManager.Status to eventually go to running. Once it does, everything works. I don’t see any new errors on the server side, always the same two that were already common two days ago when everything was working, so I don’t think these are related, but here goes anyway: Gateway: 2026-03-03T13:01:21.886520Z ERROR ThreadId(02) http_request{request_id=508c3c86-e2e2-440b-901e-0041f5928152 method=POST uri=/gateway user_agent=unknown}: ohttp_gateway::handlers::ohttp: Failed to decapsulate OHTTP request: a problem occurred with HPKE: Failed to open ciphertext PIR: 2026-03-03T12:50:16+0000 error id=8836ee445
2w
Reply to Request for Guidance on Approval Process for Network Extension Entitlement
So, currently I implemented a small POC app with content filtering and it seems to be working fine when I run it through Xcode. But as I uploaded the app to test flight then I do not see any setting related to content filtering in the Settings App or can not see any kind of permission alert for filtering. Same behaviour for ad hoc build as well. So what should we do in this case ?
3w
SSC 2026 — Will unlisted .mlmodel cause build failure?
Hi, I submitted my Swift Student Challenge 2026 app and I'm worried about a build error I got when testing. I have both PlateClassifier_2.mlmodel and PlateClassifier_2.mlmodelc in my Sources folder. Only the .mlmodelc is listed in my Package.swift resources. When building I got: PlateClassifier_2.mlmodel: No predominant language detected. Set COREML_CODEGEN_LANGUAGE to preferred language. Build failed — 1 error Will judges hit this same error? Does having an unlisted .mlmodel alongside the .mlmodelc cause a hard build failure on other machines too, or is this specific to my setup (Xcode 26.2 beta, building to physical device)? Will this get me instantly disqualified? Any help appreciated.
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Xcode 26 fails to load SPM packages
For me it looks like Xcode 26 has problems reading SPM packages from a locally hosted BitBucket git solution. While Xcode 16 work perfectly fine, Xcode 26 fails to load and gives Server SSH Fingerprint Failed to Verify as error description. Cleaning build data and DerivedData sometimes makes loading work. Any change in Package dependencies will break it again. Anyone having same problems? How do you handle it?
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Swift Array Out of Bounds Crash in VTFrameProcessor when using VTLowLatencyFrameInterpolationParameters
Hi everyone, Our team is encountering a reproducible crash when using VTLowLatencyFrameInterpolation on iOS 26.3 while processing a live LL-HLS input stream. 🤖 Environment Device: iPhone 16 OS: iOS 26.3 Xcode: Xcode 26.3 Framework: VideoToolbox 💥 Crash Details The application crashes with the following fatal error: Fatal error: Swift/ContiguousArrayBuffer.swift:184: Array index out of range The stack trace highlights the following: VTLowLatencyFrameInterpolationImplementation processWithParameters:frameOutputHandler: Called from VTFrameProcessor.process(parameters:) Here is the simplified implementation block where the crash occurs. (Note: PrismSampleBuffer and PrismLLFIError are our internal custom wrapper types). // Create `VTFrameProcessorFrame` for the source (previous) frame. let sourcePTS = sourceSampleBuffer.presentationTimeStamp var sourceFrame: VTFrameProcessorFrame? if let pixelBuffer = sourceSampleBuffer.imageBuffer { sourceFrame = VTFrameProcessorFrame(buffer: pixelBuffer, pres
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How do I resolve the "Automatic signing cannot update bundle identifier..." error?
When I create an archive file and attempt to upload the app using the Distribute App button, the upload fails with the error Automatic signing cannot update bundle identifier.... (The detailed message is below.) When creating an archive file in Xcode, I unchecked Automatically Manage Signing and proceeded with the archive. The message says Font Enumeration, but other apps with the same option enabled upload successfully. Therefore, I believe the Font Enumeration option is not the issue. I tried creating a new provisioning file, but it still doesn't work. I deleted all DerivedData files from my Mac storage, restarted Xcode, and tried again, but it still doesn't work. This keeps happening only for certain targets (specific apps) in Xcode. Does anyone know how to fix this? Xcode is the latest version. Message: Automatic signing cannot update bundle identifier com.xxxxxx.xxxxxx. Automatic signing cannot update your registered bundle identifier to enable Font Enumeration. Update
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Reply to Can't get USBSerialDriverKit driver loaded
OK, so for some reason, the provisioning profile includes the USB entitlement for vendorID= and I thought because I requested a specific vendor id that I only get that. So after putting into the vendor id field in my USB entitlement in Xcode, they now match, and it works. Strange.... These are the development only entitlements. See this forum post for a detailed run-through of the codesigning side of this. In terms of the matching side of this: The comments feature of the forums is not particularly useful, so please post a complete copy of your IOKitPersonalities dictionary, posted using the code option (which makes it easy to copy out). I have a rundown of the matching and loading process here, so please start by reviewing and validating your DEX against that. That document specifically covers this: Should I set something else for IOClass if my driver does bind to USB interfaces and takes care about exposing them as USB serial devices to the os? I currently have IOClass=IOUserService Also mentioned
Topic: App & System Services SubTopic: Drivers Tags:
3w
Reply to Xcode 26 – Organizer does not show “App Store Connect” for watchOS standalone app (only Release Testing available)
By watchOS standalone app, did you mean watch-only app, with the terminology defined in TN3157? For a watch-only app, it does seem that Xcode 26.x doesn't provide the App Store Connect option in the app archiving process, which, to me, is likely a bug. Do you have a feedback report yet? If not, would you mind to file one with screenshots that show the steps you use to create and archive a project, and then share your report ID here? Thanks. Best, —— Ziqiao Chen  Worldwide Developer Relations.
3w
Reply to Driver Activation failure error code 9. Maybe Entitlements? Please help
First, I wanted to apologize for not replying for a full month, as well as thank you very much for your reply. I was pulled away from this project for a couple weeks, and when I got back I was still spinning my wheels getting the driver installed. Not a problem at all. It was 67 characters and, apparently the maximum is 63. Seems like an arbitrarily short max in this day and age, and you'd think both XCode and the Developer Portal would catch that, but that's what it was. Sigh... I'm sorry I didn't think of that, as I'm aware of that limitation and actually posted about it here. FYI, you should also be aware of the version number limitation described here, which is another arbitrary restriction the kernel enforces. So, on to my current problem. The driver installs... but doesn't load. Probably because it's not matching. So I'm going to give more detailed information in the hope you can help me with this. If you haven't seen it already, I have a post here that does an extended run down of the matching
Topic: App & System Services SubTopic: Drivers Tags:
3w
Reply to Swift Student Challenge environment selection question (iOS 26)
Thank you for your response, I appreciate you taking the time to clarify. Just to make sure I fully understand: does this mean there is no possibility that the submission could be evaluated in Xcode if needed, or would that decision be up to the review team? Thanks again for your help.
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2w
iOS 26.2 Platform support failed download
I've recently updated to Xcode 26.3 and I can't download any iOS Simulator Runtime from 26.2 to 18.0, every download gives me: Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = 2026-03-03 16:14:50 +0000; } -- Download failed. Domain: DVTDownloadableErrorDomain Code: 41 -- System Information macOS Version 26.4 (Build 25E5218f) Xcode 26.3 (24587) (Build 17C529) Timestamp: 2026-03-03T17:14:50+01:00 I tried cleaning every cache, and logging in and out of my account. I saw some reddit posts where they suggested to check out VPNs, host files and other stuff but everything was okay, also I can reach apple cdns etc. I also tried using Xcode beta 26.4 and going back to 26.2 but still the same problem. Anyone has a solution?
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2
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310
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2w
Reply to tvOS Simulator (also Xcode Canvas) Mapview Artifacts After Xcode Crash (26.3)
Also saw these warnings now in the xcode cli Warnings: Failed to locate resource named default.csv CAMetalLayer ignoring invalid setDrawableSize width=0.000000 height=0.000000 IOServiceOpen failed: 0xe00002e2 IOServiceOpen failed: 0xe00002e2 IOServiceOpen failed: 0xe00002e2 IOServiceOpen failed: 0xe00002e2
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2w
Trouble installing Xcode 23.0.1
I was having an issue with the new xcode and was forced to to go back to to Xcode 26.0.1. ( I need iOS simulators for mobile testing and as Developer I know is using this version with no problems). I've always install xcode from the app store with no issue so installing from Apple Dev was something new for me so So I did the following downloaded Xcode 26.0.1 Extracted it from Xzip added the extracted Xcode version to the applications folder click the Xcode icon Expected result I was expecting to see text i could install Xcode version Actual Result Xcode opened Asked me to create a project When project was created I saw Question. What did I do wrong? How do I fix it?
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0
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0
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69
Activity
2w
tvOS Simulator (also Xcode Canvas) Mapview Artifacts After Xcode Crash (26.3)
Have a peculiar problem I'm not able to solve. Working on an app with a mapview in the max zoomed out globe level. For some reason this morning Xcode froze/crashed when I was working and I had to force quit to get it back up. Then a new issue of graphical artifacts on the space section of the Mapview showed up. This Tuesday has now been spent in full on trying to solve this to no avail. I created a new project for iOS/iPadOS and added a similar map implementation. It works fine. I used Claude to help me after a few reinstalls of Xcode with this. I asked claude to summarize - this is what has been done: Claude generative AI summary starts here---------- Here's a complete summary of everything attempted: The Problem SwiftUI tvOS app with MapKit globe view showing severe rendering artifacts — corrupted pixels surrounding the globe. Started after Xcode crashed while the tvOS simulator was actively running. iOS simulator, macOS Maps app, and all native apps work perfectly. Only tvOS simu
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2
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0
Views
120
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2w
Reply to Waiting for Review for some time now (day 4 and counting)
Nevermind. After rebuilding / uploding (this time with Xcode Cloud), and sending a friendly email to the devteam, my app got approved. Not sure if it was the rebuild or the email what did it.
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2w
Reply to Getting a basic URL Filter to work
That’s what was happening last night 😅 Currently (on the latest beta), I always get that error when trying to activate the TestFlight build. However, some testers have reported being able to activate 🤷‍♀️ But (still on the latest beta) versions installed from Xcode eventually activate. They flip many times between “busy” and “error” before tho, but that’s not new. It takes like a minute for the NEURLFilterManager.Status to eventually go to running. Once it does, everything works. I don’t see any new errors on the server side, always the same two that were already common two days ago when everything was working, so I don’t think these are related, but here goes anyway: Gateway: 2026-03-03T13:01:21.886520Z ERROR ThreadId(02) http_request{request_id=508c3c86-e2e2-440b-901e-0041f5928152 method=POST uri=/gateway user_agent=unknown}: ohttp_gateway::handlers::ohttp: Failed to decapsulate OHTTP request: a problem occurred with HPKE: Failed to open ciphertext PIR: 2026-03-03T12:50:16+0000 error id=8836ee445
Replies
Boosts
Views
Activity
2w
Reply to Request for Guidance on Approval Process for Network Extension Entitlement
So, currently I implemented a small POC app with content filtering and it seems to be working fine when I run it through Xcode. But as I uploaded the app to test flight then I do not see any setting related to content filtering in the Settings App or can not see any kind of permission alert for filtering. Same behaviour for ad hoc build as well. So what should we do in this case ?
Replies
Boosts
Views
Activity
3w
SSC 2026 — Will unlisted .mlmodel cause build failure?
Hi, I submitted my Swift Student Challenge 2026 app and I'm worried about a build error I got when testing. I have both PlateClassifier_2.mlmodel and PlateClassifier_2.mlmodelc in my Sources folder. Only the .mlmodelc is listed in my Package.swift resources. When building I got: PlateClassifier_2.mlmodel: No predominant language detected. Set COREML_CODEGEN_LANGUAGE to preferred language. Build failed — 1 error Will judges hit this same error? Does having an unlisted .mlmodel alongside the .mlmodelc cause a hard build failure on other machines too, or is this specific to my setup (Xcode 26.2 beta, building to physical device)? Will this get me instantly disqualified? Any help appreciated.
Replies
0
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0
Views
102
Activity
3w
Xcode 26 fails to load SPM packages
For me it looks like Xcode 26 has problems reading SPM packages from a locally hosted BitBucket git solution. While Xcode 16 work perfectly fine, Xcode 26 fails to load and gives Server SSH Fingerprint Failed to Verify as error description. Cleaning build data and DerivedData sometimes makes loading work. Any change in Package dependencies will break it again. Anyone having same problems? How do you handle it?
Replies
7
Boosts
0
Views
797
Activity
3w
Swift Array Out of Bounds Crash in VTFrameProcessor when using VTLowLatencyFrameInterpolationParameters
Hi everyone, Our team is encountering a reproducible crash when using VTLowLatencyFrameInterpolation on iOS 26.3 while processing a live LL-HLS input stream. 🤖 Environment Device: iPhone 16 OS: iOS 26.3 Xcode: Xcode 26.3 Framework: VideoToolbox 💥 Crash Details The application crashes with the following fatal error: Fatal error: Swift/ContiguousArrayBuffer.swift:184: Array index out of range The stack trace highlights the following: VTLowLatencyFrameInterpolationImplementation processWithParameters:frameOutputHandler: Called from VTFrameProcessor.process(parameters:) Here is the simplified implementation block where the crash occurs. (Note: PrismSampleBuffer and PrismLLFIError are our internal custom wrapper types). // Create `VTFrameProcessorFrame` for the source (previous) frame. let sourcePTS = sourceSampleBuffer.presentationTimeStamp var sourceFrame: VTFrameProcessorFrame? if let pixelBuffer = sourceSampleBuffer.imageBuffer { sourceFrame = VTFrameProcessorFrame(buffer: pixelBuffer, pres
Replies
1
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0
Views
446
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3w
How do I resolve the "Automatic signing cannot update bundle identifier..." error?
When I create an archive file and attempt to upload the app using the Distribute App button, the upload fails with the error Automatic signing cannot update bundle identifier.... (The detailed message is below.) When creating an archive file in Xcode, I unchecked Automatically Manage Signing and proceeded with the archive. The message says Font Enumeration, but other apps with the same option enabled upload successfully. Therefore, I believe the Font Enumeration option is not the issue. I tried creating a new provisioning file, but it still doesn't work. I deleted all DerivedData files from my Mac storage, restarted Xcode, and tried again, but it still doesn't work. This keeps happening only for certain targets (specific apps) in Xcode. Does anyone know how to fix this? Xcode is the latest version. Message: Automatic signing cannot update bundle identifier com.xxxxxx.xxxxxx. Automatic signing cannot update your registered bundle identifier to enable Font Enumeration. Update
Replies
1
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0
Views
109
Activity
3w
Reply to Can't get USBSerialDriverKit driver loaded
OK, so for some reason, the provisioning profile includes the USB entitlement for vendorID= and I thought because I requested a specific vendor id that I only get that. So after putting into the vendor id field in my USB entitlement in Xcode, they now match, and it works. Strange.... These are the development only entitlements. See this forum post for a detailed run-through of the codesigning side of this. In terms of the matching side of this: The comments feature of the forums is not particularly useful, so please post a complete copy of your IOKitPersonalities dictionary, posted using the code option (which makes it easy to copy out). I have a rundown of the matching and loading process here, so please start by reviewing and validating your DEX against that. That document specifically covers this: Should I set something else for IOClass if my driver does bind to USB interfaces and takes care about exposing them as USB serial devices to the os? I currently have IOClass=IOUserService Also mentioned
Topic: App & System Services SubTopic: Drivers Tags:
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Views
Activity
3w
Reply to Xcode 26 – Organizer does not show “App Store Connect” for watchOS standalone app (only Release Testing available)
By watchOS standalone app, did you mean watch-only app, with the terminology defined in TN3157? For a watch-only app, it does seem that Xcode 26.x doesn't provide the App Store Connect option in the app archiving process, which, to me, is likely a bug. Do you have a feedback report yet? If not, would you mind to file one with screenshots that show the steps you use to create and archive a project, and then share your report ID here? Thanks. Best, —— Ziqiao Chen  Worldwide Developer Relations.
Replies
Boosts
Views
Activity
3w
Reply to Driver Activation failure error code 9. Maybe Entitlements? Please help
First, I wanted to apologize for not replying for a full month, as well as thank you very much for your reply. I was pulled away from this project for a couple weeks, and when I got back I was still spinning my wheels getting the driver installed. Not a problem at all. It was 67 characters and, apparently the maximum is 63. Seems like an arbitrarily short max in this day and age, and you'd think both XCode and the Developer Portal would catch that, but that's what it was. Sigh... I'm sorry I didn't think of that, as I'm aware of that limitation and actually posted about it here. FYI, you should also be aware of the version number limitation described here, which is another arbitrary restriction the kernel enforces. So, on to my current problem. The driver installs... but doesn't load. Probably because it's not matching. So I'm going to give more detailed information in the hope you can help me with this. If you haven't seen it already, I have a post here that does an extended run down of the matching
Topic: App & System Services SubTopic: Drivers Tags:
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