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Is it possible to download or copy the iOS SDK for Xcode 26.1 using command-line tools? If so, how?
I have Xcode 26.1.1 (installed on a Mac Mini with Sequoia 15.7.2), which was installed from the Universal .xip file available from the Apple Developer site. This file is 2.7Gb. When Xcode is run, there is a menu item at Settings -> Components, and the top section Platform Support includes an option to Get the iOS SDK, which is an additional 10.3Gb download.[1][2] I would like to either use command-line tools to obtain this iOS SDK component, or find where the downloaded package or its contents are installed on this Mac. This Apple Documentation some examples of using command-line tools to download components for Xcode. However, there is no specific documentation on how to separately download the iOS SDK. It seems that if possible, it could be done with xcodebuild -downloadComponent, however I have tried a number of likely component names (ios, ios_sdk, ios26.1, ios_sdk26.1, iphoneos, iphoneos_sdk, iphoneos_sdk26.1), and none are valid. Does anyone know either where the SDK downlo
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Reply to Xcode 26 failed in the real-device debugging process
Although the update log indicates that Xcode 26 has the lowest support level of iOS 15, historical versions can still enable device debugging by adding the corresponding platform's DeviceSupport (Developer Disk Image). I haven't found any restrictions for iOS 12. If anyone knows the solution, please do let me know. Thank you very much for your assistance. ZQ Han. Thanks!
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Xcode error: Missing target with GUID
I have been getting the following error intermittently (once it happens, then its consistent) when I try to build my app Showing Recent Errors Only Unable to resolve build file: BuildFile (The workspace has a reference to a missing target with GUID '0c7e19da3805e0a412c717704d4549fc25560b498add930cbef9623bd9afb53a') There have been no changes to my project (git status is clean). I have tried cleaning DerivedData as well, but it did not help. How am I supposed to figure out from the GUID what is it that xcode is trying to find?
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XCode 26 build app run iOS12.5 device crash
undle/Application/D1E61F20-B0C9-4B21-8152-E4ABFA0979F2/YTVIP.app': Unspecified User Info: { DVTErrorCreationDateKey = 2026-03-04 03:05:58 +0000; DVTRadarComponentKey = 855031; IDERunOperationFailingWorker = DBGLLDBLauncher; RawUnderlyingErrorMessage = Cannot launch '/private/var/containers/Bundle/Application/D1E61F20-B0C9-4B21-8152-E4ABFA0979F2/YTVIP.app': Unspecified; } Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : { device_identifier = d13ba5c93db94daa55ae177b1822998b675939a8; device_model = iPhone7,2; device_osBuild = 12.5.3 (16H41); device_osBuild_monotonic = 1607004100; device_os_variant = 1; device_platform = com.apple.platform.iphoneos; device_platform_family = 2; device_reality = 1; device_thinningType = iPhone7,2; device_transport = 1; launchSession_schemeCommand = Run; launchSession_schemeCommand_enum = 1; launchSession_targetArch = arm64; launchSession_targetArch_enum = 6; operation_duration_ms = 12938; operation_errorCode = 3; operation_errorDomain = IDEDebugSessionErrorDomain; oper
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[HELP] Xcode unable to connect to multiple devices, stuck on "Connecting to 's iPhone"
Hello, I've been searching online for ways to remedy this issue for the past 3 days and this is my last resort. The Issue Build on device fails to connect to the device. The prompt will permanently be stuck loading in that screen. Finder is able to connect to the device, just that Xcode is unable to. Xcode does prompt for passcode on the device, and I have entered it accordingly. I note that i AM on VPN, but even disabling VPN and turning off Wifi does not fix the issue. This was working until several days ago. Not sure what the issue is. Fixes Attempted Tried with a different cable, and USB ports Tried with different devices (multiple devices both iPad and iPhone has the same issue) Turn Off and On developer mode on devices. Clear Trusted Computers on devices. Updating both devices to the latest iOS version. Quitting Xcode Clearing derived cache Restarting Macbook Updating to the latest iOS version on Macbook Reinstalling Xcode toggling signing certificates I was trying ot
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Xcode 26 failed in the real-device debugging process
Development environment: MacBook pro Apple M1 macOS Tahoe 26.2 (25C56) Xcode 26.x iPhone 6 Plus / iOS 12.4.4 Exception description: After I upgraded to Xcode 26, my iPhone 6 Plus had a system version of 12.4.4. I was unable to perform real-device debugging, whether for existing projects or new ones. The error message from Xcode was as follows: Could not launch “xxx” Domain: IDEDebugSessionErrorDomain Code: 3 Failure Reason: Cannot launch '/private/var/containers/Bundle/Application/A44062C1-32F5-4346-B13C-FC3F39EAF7A1/xxx.app': Unspecified Even though I have already added device support for the iOS 12.4 Has Xcode 26 stopped supporting the debugging of any devices running iOS 12 system?
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Reply to Can't enable an iOS Driverkit driver when using an older app ID
This post was a godsend for me while trying to implement automatically generated date-based build numbers. For you (and any future beneficiaries), please file a bug about this and then post the bug number back here. There are couple of kernel specific limitation like this (bundle ID length is the other) and Xcode should probably have a check in place that prevents/warns about this. __ Kevin Elliott DTS Engineer, CoreOS/Hardware
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No "intelligence" option in Xcode 26.3
Hi there, I am trying to use the agentic coding with the new Xcode update, however the Intelligence tab is not coming up on the left hand side of my Xcode settings. I've ensured I have macOS greater than 26, I've got Apple Intelligence and Siri enabled. I've shut down and restarted Xcode and my computer. Still, the option is not available. Can anyone help?
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Reply to Is calling different SBApplication objects from different threads bad?
Good idea. I often have most of that stuff turned on, but haven't lately. I ran with ASan on all this morning (running 2 jobs that constantly hammer InDesign Desktop with scripts) and only managed to get 2 occurrences of errOSAInternalTableOverflow, but no crashes or hangs. It may be worth continuing this test on general principle, but at this point I suspect the issue here is in fact a threading bug in AppleEvents. As far as I can tell, the bug has basically been present for a very long time, probably since the original release of OS X 25+ years ago. It's existed for so long because: It requires multiple threads to be sending AppleEvents, which isn't all that common. It likely requires those threads to be sending the right/wrong events (specifically, events that require replies) and may require an ongoing stream of events. I think the timing window is so narrow that even all other circumstances are right, nothing actually goes wrong simply because of how the execution stream happens to play out. One
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Reply to BLE characteristic values swapped
Reading through your GitHub issues, I see no indication that this would be an iOS bug, but rather a timing/race issue in your code. A bug like this that is in the Bluetooth stack would have caused many such complaints, and at this point, this is the first time I am hearing this. The only other explanation that would be beyond your code can be an issue with the GATT table on the accessory, perhaps due to mixing up of attribute handles. The only way to understand whether the value sent by the accessory is the correct one vs. the wrong one reported by CoreBluetooth to your app would be to observe the traffic with a packet logger/air trace to see. If you are able to reproduce this on your end, what would be useful is to install the Bluetooth logging profile from https://developer.apple.com/feedback-assistant/profiles-and-logs/ and then examine the Console logs for your app, or use the PacketLogger app (available at Additional Tools for Xcode) to see the traffic between your app and the periphera
Topic: App & System Services SubTopic: Core OS Tags:
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Reply to Unable to use AI with XCode 26.2
Thanks for reaching out. Does that happen for every prompt you try to send? If so, can you try updating to Xcode 26.3 which contains some important quality fixes. If not, could you please file a Feedback Request and attach the archive produced by the sysdiagnose command so we can take a look? Thank you!
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Reply to Passkit generator vulnerabilities issue
Hi, passkit-generator creator here. For things like that, it is likely better to write on Github. I found this thread by mistake. I never heard of the CVE you are referring to, btw. The referred dependency is something you generally install with the examples, but I don't know what you are doing.
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Is it possible to download or copy the iOS SDK for Xcode 26.1 using command-line tools? If so, how?
I have Xcode 26.1.1 (installed on a Mac Mini with Sequoia 15.7.2), which was installed from the Universal .xip file available from the Apple Developer site. This file is 2.7Gb. When Xcode is run, there is a menu item at Settings -> Components, and the top section Platform Support includes an option to Get the iOS SDK, which is an additional 10.3Gb download.[1][2] I would like to either use command-line tools to obtain this iOS SDK component, or find where the downloaded package or its contents are installed on this Mac. This Apple Documentation some examples of using command-line tools to download components for Xcode. However, there is no specific documentation on how to separately download the iOS SDK. It seems that if possible, it could be done with xcodebuild -downloadComponent, however I have tried a number of likely component names (ios, ios_sdk, ios26.1, ios_sdk26.1, iphoneos, iphoneos_sdk, iphoneos_sdk26.1), and none are valid. Does anyone know either where the SDK downlo
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Reply to Xcode 26 failed in the real-device debugging process
Although the update log indicates that Xcode 26 has the lowest support level of iOS 15, historical versions can still enable device debugging by adding the corresponding platform's DeviceSupport (Developer Disk Image). I haven't found any restrictions for iOS 12. If anyone knows the solution, please do let me know. Thank you very much for your assistance. ZQ Han. Thanks!
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Xcode error: Missing target with GUID
I have been getting the following error intermittently (once it happens, then its consistent) when I try to build my app Showing Recent Errors Only Unable to resolve build file: BuildFile (The workspace has a reference to a missing target with GUID '0c7e19da3805e0a412c717704d4549fc25560b498add930cbef9623bd9afb53a') There have been no changes to my project (git status is clean). I have tried cleaning DerivedData as well, but it did not help. How am I supposed to figure out from the GUID what is it that xcode is trying to find?
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XCode 26 build app run iOS12.5 device crash
undle/Application/D1E61F20-B0C9-4B21-8152-E4ABFA0979F2/YTVIP.app': Unspecified User Info: { DVTErrorCreationDateKey = 2026-03-04 03:05:58 +0000; DVTRadarComponentKey = 855031; IDERunOperationFailingWorker = DBGLLDBLauncher; RawUnderlyingErrorMessage = Cannot launch '/private/var/containers/Bundle/Application/D1E61F20-B0C9-4B21-8152-E4ABFA0979F2/YTVIP.app': Unspecified; } Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : { device_identifier = d13ba5c93db94daa55ae177b1822998b675939a8; device_model = iPhone7,2; device_osBuild = 12.5.3 (16H41); device_osBuild_monotonic = 1607004100; device_os_variant = 1; device_platform = com.apple.platform.iphoneos; device_platform_family = 2; device_reality = 1; device_thinningType = iPhone7,2; device_transport = 1; launchSession_schemeCommand = Run; launchSession_schemeCommand_enum = 1; launchSession_targetArch = arm64; launchSession_targetArch_enum = 6; operation_duration_ms = 12938; operation_errorCode = 3; operation_errorDomain = IDEDebugSessionErrorDomain; oper
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[HELP] Xcode unable to connect to multiple devices, stuck on "Connecting to 's iPhone"
Hello, I've been searching online for ways to remedy this issue for the past 3 days and this is my last resort. The Issue Build on device fails to connect to the device. The prompt will permanently be stuck loading in that screen. Finder is able to connect to the device, just that Xcode is unable to. Xcode does prompt for passcode on the device, and I have entered it accordingly. I note that i AM on VPN, but even disabling VPN and turning off Wifi does not fix the issue. This was working until several days ago. Not sure what the issue is. Fixes Attempted Tried with a different cable, and USB ports Tried with different devices (multiple devices both iPad and iPhone has the same issue) Turn Off and On developer mode on devices. Clear Trusted Computers on devices. Updating both devices to the latest iOS version. Quitting Xcode Clearing derived cache Restarting Macbook Updating to the latest iOS version on Macbook Reinstalling Xcode toggling signing certificates I was trying ot
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54
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Xcode 26 failed in the real-device debugging process
Development environment: MacBook pro Apple M1 macOS Tahoe 26.2 (25C56) Xcode 26.x iPhone 6 Plus / iOS 12.4.4 Exception description: After I upgraded to Xcode 26, my iPhone 6 Plus had a system version of 12.4.4. I was unable to perform real-device debugging, whether for existing projects or new ones. The error message from Xcode was as follows: Could not launch “xxx” Domain: IDEDebugSessionErrorDomain Code: 3 Failure Reason: Cannot launch '/private/var/containers/Bundle/Application/A44062C1-32F5-4346-B13C-FC3F39EAF7A1/xxx.app': Unspecified Even though I have already added device support for the iOS 12.4 Has Xcode 26 stopped supporting the debugging of any devices running iOS 12 system?
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244
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Reply to Can't enable an iOS Driverkit driver when using an older app ID
This post was a godsend for me while trying to implement automatically generated date-based build numbers. For you (and any future beneficiaries), please file a bug about this and then post the bug number back here. There are couple of kernel specific limitation like this (bundle ID length is the other) and Xcode should probably have a check in place that prevents/warns about this. __ Kevin Elliott DTS Engineer, CoreOS/Hardware
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No "intelligence" option in Xcode 26.3
Hi there, I am trying to use the agentic coding with the new Xcode update, however the Intelligence tab is not coming up on the left hand side of my Xcode settings. I've ensured I have macOS greater than 26, I've got Apple Intelligence and Siri enabled. I've shut down and restarted Xcode and my computer. Still, the option is not available. Can anyone help?
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Reply to Is calling different SBApplication objects from different threads bad?
Good idea. I often have most of that stuff turned on, but haven't lately. I ran with ASan on all this morning (running 2 jobs that constantly hammer InDesign Desktop with scripts) and only managed to get 2 occurrences of errOSAInternalTableOverflow, but no crashes or hangs. It may be worth continuing this test on general principle, but at this point I suspect the issue here is in fact a threading bug in AppleEvents. As far as I can tell, the bug has basically been present for a very long time, probably since the original release of OS X 25+ years ago. It's existed for so long because: It requires multiple threads to be sending AppleEvents, which isn't all that common. It likely requires those threads to be sending the right/wrong events (specifically, events that require replies) and may require an ongoing stream of events. I think the timing window is so narrow that even all other circumstances are right, nothing actually goes wrong simply because of how the execution stream happens to play out. One
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Activity
2w
Reply to BLE characteristic values swapped
Reading through your GitHub issues, I see no indication that this would be an iOS bug, but rather a timing/race issue in your code. A bug like this that is in the Bluetooth stack would have caused many such complaints, and at this point, this is the first time I am hearing this. The only other explanation that would be beyond your code can be an issue with the GATT table on the accessory, perhaps due to mixing up of attribute handles. The only way to understand whether the value sent by the accessory is the correct one vs. the wrong one reported by CoreBluetooth to your app would be to observe the traffic with a packet logger/air trace to see. If you are able to reproduce this on your end, what would be useful is to install the Bluetooth logging profile from https://developer.apple.com/feedback-assistant/profiles-and-logs/ and then examine the Console logs for your app, or use the PacketLogger app (available at Additional Tools for Xcode) to see the traffic between your app and the periphera
Topic: App & System Services SubTopic: Core OS Tags:
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Reply to Xcode 26.3 - Revert to variable editor tab width
I have filed report FB22117916, titled Reduced tab density in Xcode 26.3.
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Reply to Your request couldn't be completed
Just to clarify, when selecting Sign In in Xcode, it should show a new browser window where you enter the magic code. You will not enter that code in Xcode, so make sure to look for the window that comes up in your browser for entering the code.
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Reply to Unable to use AI with XCode 26.2
Thanks for reaching out. Does that happen for every prompt you try to send? If so, can you try updating to Xcode 26.3 which contains some important quality fixes. If not, could you please file a Feedback Request and attach the archive produced by the sysdiagnose command so we can take a look? Thank you!
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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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