I'm trying to run my app on my iPhone and XCode is unable to detect it.
Versions (as of time of writing, these are all the latest versions)
XCode: 15.0.1
iOS: 17.1.2
macOS: Sonoma 14.1.2
What I've tried
Updating all hardware to the latest versions.
Restarting all hardware.
Clearing cache/derived data.
Using different USBC ports/cables.
Using the XCode 15.1-Beta 3 (the latest beta)
Clearing trusted computers and re-trusting
Disabling Multipath Networking (solution for someone else on the dev forums)
Creating a brand new xcode project.
Disabling all wifi/bluetooth and reconnecting
Using different wifi networks
Calling mac support (they directed me back here)
Scouring forums
What happens
I start by disconnecting my phone from my computer, clear trusted computers, restart xcode, and start (basically) from a completely blank slate. First I open XCode to my project. Then I connect my iPhone via USBC. I see that XCode says "iPhone not eligible while pairing in progress" (or something like that). I see on my phone that I must trust this computer, I hit trust, I enter my phone's passcode, then that disappears on my phone, and in XCode the message about eligibility disappears. I then click on the device selector to choose between either a simulator or a hardware device and under hardware I only see a message that says "No eligible devices connected to my mac". If I open the "Manage Run Destinations" organizer I see all the simulators there in the simulators tab, but when I go to the Devices tab, I see nothing. Sometimes when I go through this process, I can get a banner to appear up top, but still no device shows up on the left. The banner will show me that it is indeed my iPhone, but it will be missing information like "Serial Number" or "Capacity". Here's a screenshot of what I see. Keep in mind, this banner up top does not always show up when I go through this process.
iPhone CAN be detected on my other laptop
When I do this exact same thing on my other laptop, everything works just fine. Here are the specs I'm running on that laptop.
(using the same cable/wifi network/etc)
XCode 15.0.1
macOS: Ventura 13.6.1
iPhone 17.1.2 (I'm using the same iPhone)
The only difference here being the macOS version. However, the problem started on my "broken" computer while I was running a previous major macOS version. This problem is actually what prompted my to do a system update to Sonoma.
Please for the love of god, halp!!!
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The Foundation Models Framework stopped working after Xcode failed to download the "Predictive Code Completion Model".
What happened was on macOS Tahoe 26.0:
Downloaded and installed Xcode 26 Beta (17A5241e)
Worked with Foundation Models framework. Everything worked fine. ✅
Opened Xcode 16.4
This triggers the downloading of Predictive Code Completion Model which then fails.
Go back into Xcode 26 Beta, Foundation Models framework no longer works. ❌ Error: "Failed to find asset: com.apple.gm.safety_deny.input.code_intelligence.base.generic - no asset"
What I've tried or checked:
Reinstalling Xcode 26 Beta
Uninstalling both Xcodes and only installing Xcode 26 Beta
Checked available space on drive (over 300 GB free)
Restarted Mac
Restarted Xcode 26
Changed wifi networks
Turned on VPN
Deleted the Library > Developer > Xcode folder and reinstalled Xcode 26
Feedback Report
FB18208139: Can't download Predictive Code Completion Model - Xcode 26
Screenshots
Topic:
Developer Tools & Services
SubTopic:
Xcode
I just submitted a feedback for this (FB9662125) but in the spirit of “share and enjoy”…
The cool new Generate Info.plist File feature in Xcode 13 crashes if you try to put an NSLocationTemporaryUsageDescriptionDictionary in your Info.plist file. Here’s a simple repro scenario:
Create a minimal iOS app (no Core Data, no tests)
Go to target settings → Info tab → Custom iOS Target Properties
Click the (+) button on any row to begin inserting a new row
Select Privacy - Location Temporary Usage Description Dictionary
Click somewhere else or press Return to commit the selection
Xcode crashes immediately
More generally, it seems that Xcode crashes any time it tries to regenerate your Info.plist file if it contains an NSLocationTemporaryUsageDescriptionDictionary, even if (for example) you manually pasted that dictionary into the file earlier. In that case, merely tapping the (+) button in step 3 above is enough to crash it.
Out of nowhere I got some red banner on top of my iPhone 13 mini / iOS 17.5. I cannot pin point the root cause of this. What I can say is that it only happens to Simulators of a certain type, e.g. iPhone 12 and 13 mini, but not iPhone 14 for example.
I have installed Xcode 26.1.0 and 26.1.1, out of which 26.1.0 is selected:
$ xcode-select -p
/Applications/Xcode-26.1.0.app/Contents/Developer
And following runtimes:
$ xcrun simctl runtime list
== Disk Images ==
-- iOS --
iOS 17.5 (21F79) - CF933623-A258-44F8-B248-C0F25C0C343B (Ready)
iOS 26.1 (23B80) - D11C3CDC-EE3D-44CC-8B92-9B7D00B54B0B (Ready)
Total Disk Images: 2 (14.6G)
Installing the newer 26.1 23B86 runtime doesn't help either.
I am experiencing an issue where my Mac's speakers will crackle and pop when running an app on the Simulator or even when previewing SwiftUI with Live Preview.
I am using a 16" MacBook Pro (i9) and I'm running Xcode 12.2 on Big Sur (11.0.1).
Killing coreaudiod temporarily fixes the problem however this is not much of a solution.
Is anyone else having this problem?
I Keep getting this error if I try to enroll in the developer program, why is this? Please tell me how to fix this of why this is happening!
Download failed.
Domain: DVTDownloadableErrorDomain
Code: 41
User Info: {
DVTErrorCreationDateKey = "2025-10-26 06:59:38 +0000";
}
Download failed.
Domain: DVTDownloadableErrorDomain
Code: 41
Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({
RequestedBuild = 23A8464;
})
Domain: DVTDownloadsUtilitiesErrorDomain
Code: -1
Download failed due to a bad URL. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime)
Domain: com.apple.MobileAssetError.Download
Code: 49
User Info: {
checkConfiguration = 1;
}
System Information
macOS Version 26.0.1 (Build 25A362)
Xcode 26.0.1 (24229) (Build 17A400)
Timestamp: 2025-10-26T17:59:38+11:00
Topic:
Developer Tools & Services
SubTopic:
Xcode
I am unable to download the iOS 26.1 Simulator Runtime through Xcode 26.1 on macOS 26.1 (Build 25B78).
Issue Details:
When attempting to download via Xcode Settings → Platforms, the download fails with error code 41 (DVTDownloadableErrorDomain) and error code 60 (MADownloadCannotConnectToHost)
The error message states: "Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({RequestedBuild = 23B80;})"
I receive HTTP 403 Forbidden when accessing mesu.apple.com/assets/
Steps Attempted:
Downloaded via Xcode Settings → Component → iOS 26.1 Simulator
Tried command line: xcodebuild -downloadPlatform iOS
Searched https://developer.apple.com/download/all/ - iOS 26.1 Simulator Runtime not listed
Tested with different networks (home WiFi, VPN, mobile hotspot)
Disabled proxy settings
Flushed DNS cache
All attempts result in the same error.
Important Notes:
Xcode 26.1 shows iOS Simulator SDK 26.1 (Build 23B77) is available
However, Xcode attempts to download Build 23B80, which appears unavailable
I experienced a similar issue previously with Xcode 16.4 requesting iOS 18.4 Simulator Runtime, which was also unavailable for download
Impact:
Without the iOS 26.1 Simulator Runtime, I cannot develop or test iOS applications. macOS 26.1 requires Xcode 26.1, which in turn requires iOS 26.1 runtime, leaving me unable to perform any iOS development work.
Questions:
Is iOS 26.1 Simulator Runtime (Build 23B80) officially released?
Is there a direct download link available?
Should Xcode 26.1 be requesting Build 23B77 instead of 23B80?
Is there any account restriction preventing me from downloading newer simulator runtimes?
System Information:
macOS: 26.1 (Build 25B78)
Xcode: 26.1 (Build 17B55)
Error description:
Download failed.
Domain: DVTDownloadableErrorDomain
Code: 41
User Info: {
DVTErrorCreationDateKey = "2025-11-10 15:38:07 +0000";
}
Download failed.
Domain: DVTDownloadableErrorDomain
Code: 41
Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({
RequestedBuild = 23B80;
})
Domain: DVTDownloadsUtilitiesErrorDomain
Code: -1
Download failed due to not being able to connect to the host. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime)
Domain: com.apple.MobileAssetError.Download
Code: 60
User Info: {
checkNetwork = 1;
}
Topic:
Developer Tools & Services
SubTopic:
Xcode
Using xcode 26 with linker flag -ld_classic,get an error :
0 0x1042b9778 __assert_rtn + 160
1 0x1042bc560 ld::tool::SymbolTableAtom<x86_64>::classicOrdinalForProxy(ld::Atom const*) (.cold.3) + 0
2 0x1041f3da8 ld::tool::SymbolTableAtom<x86_64>::classicOrdinalForProxy(ld::Atom const*) + 172
3 0x1041f4c1c ld::tool::SymbolTableAtom::addImport(ld::Atom const*, ld::tool::StringPoolAtom*) + 140
4 0x1041f6500 ld::tool::SymbolTableAtom::encode() + 396
5 0x1041e83a8 ___ZN2ld4tool10OutputFile20buildLINKEDITContentERNS_8InternalE_block_invoke.413 + 36
6 0x182a95b2c _dispatch_call_block_and_release + 32
7 0x182aaf85c _dispatch_client_callout + 16
8 0x182acc478 _dispatch_channel_invoke.cold.5 + 92
9 0x182aa7fa4 _dispatch_root_queue_drain + 736
10 0x182aa85d4 _dispatch_worker_thread2 + 156
11 0x182c49e28 _pthread_wqthread + 232
A linker snapshot was created at:
/tmp/app-2025-06-13-215652.ld-snapshot
ld: Assertion failed: (it != _dylibToOrdinal.end()), function dylibToOrdinal, file OutputFile.cpp, line 5196.
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
Hi there,
I successfully created an AppIntent for our app, and when I had it in the same target as our main app it showed up fine in the shortcuts app.
Then I realized that many of the new System Control widgets introduced in iOS 18 (e.g. lockscreen, control center) live in the widget extension target, but they also need to reference that same AppIntent. So to fix this, I thought I'd migrate out the code into it's own SPM package that both the WidgetExtension and the Main App processes can reference. However, after doing that and rebuilding, the intent no longer shows up in the Shortcuts app. Furthermore, my AppShortcutsProvider class now has this error when trying to define the list of appShortcuts:
App Intent <name> should be in the same target as AppShortcutsProvider
Is this intended, and if so, how do we reference the same AppIntent across multiple targets?
I have an app on the App Store for many years enabling users to post text into clouds in augmented reality. Yet last week abruptly upon installing the app on the iPhone the screen started going totally dark and a list of little comprehensible logs came up of the kind:
ARSCNCompositor <0x300ad0e00>: ARSCNCompositor (0, 0) initialization failed. Matting is not set up properly.
many times, then
RWorldTrackingTechnique <0x106235180>: Unable to update pose [PredictorFailure] for timestamp 870.392108
ARWorldTrackingTechnique <0x106235180>: Unable to predict pose [1] for timestamp 870.392108
again several times and then:
ARWorldTrackingTechnique <0x106235180>: SLAM error callback: Error Domain=Slam Error Code=7 "Non fatal error occurred due to significant drop in a IMU data" UserInfo={NSDescription=Non fatal error occurred due to significant drop in a IMU data, NSLocalizedFailureReason=SlamEngineNodeGroup Failure: IMU issue: gyro data stream verification failed [Significant data drop]. Failed on timestamp: 870.413247, Last known timestamp: 865.350198, Delta: 5.063049, System timestamp: 870.415781, Delta between system and frame: 0.002534. }
and then again the pose issues several times.
I hoped the new beta version would have solved the issue, but it was not the case. Unfortunately I do not know if that depends on the beta version or some other issue, given the app may be not installed on the Mac simulator.
I am experiencing an issue where XCode reverts .xccurrentversion file in my iOS app to the first version whenever xcodebuild is run or whenever XCode is started. This means I can build the app and run tests in XCode if I discard the reversion .xccurrentversion on XCode start. However, testing on CI is impossible because the version the tests rely on are reverted whenever xcodebuild is run.
The commands I run to reproduce the issue
❯ git status
Changes not staged for commit:
(use "git add <file>..." to update what will be committed)
(use "git restore <file>..." to discard changes in working directory)
modified: Path/.xccurrentversion
no changes added to commit (use "git add" and/or "git commit -a")
❯ git checkout "Path/.xccurrentversion"
Updated 1 path from the index
❯ git status
nothing to commit, working tree clean
❯ xcodebuild \
-scheme Scheme \
-configuration Configuration \
-sdk iphonesimulator \
-destination 'platform=iOS Simulator,name=iPhone 16 Pro,OS=latest' \
-skipPackagePluginValidation \
-skipMacroValidation \
test > /dev/null # test fails because model version is reverted
❯ git status
HEAD detached at pull/249/merge
Changes not staged for commit:
(use "git add <file>..." to update what will be committed)
(use "git restore <file>..." to discard changes in working directory)
modified: Path/.xccurrentversion
no changes added to commit (use "git add" and/or "git commit -a")
I have experienced such issue in 16.3 (16E140) and 16.2 (16C5032a).
Similar issues/solutions I have found online are the following. But they are either not relevant or do not work in my case.
https://stackoverflow.com/questions/17631587/xcode-modifies-current-coredata-model-version-at-every-launch
https://github.com/CocoaPods/Xcodeproj/issues/81
Is anyone aware of any solution? Is there a recommended way I can run diagnostics on XCode and file a feedback?
Trying to post a question about packages on this forum, I keep cueing the message:
'This post contains sensitive language. Please revise it in order to continue.'
There is nothing in my query that is remotely ‘sensitive’.
I don’t know what to do next.
Thanks in advance for any advice.
Regards,
Lar
Xcode 26 Beta 5 Universal: Not able to install iOS 26 Beta 5 simulator on intel macs
Below log is shown:
Download failed.
Domain: DVTDownloadableErrorDomain
Code: 41
User Info: {
DVTErrorCreationDateKey = "2025-08-08 06:37:48 +0000";
}
Download failed.
Domain: DVTDownloadableErrorDomain
Code: 41
System Information
macOS Version 15.5 (Build 24F74)
Xcode 26.0 (24198.5) (Build 17A5295f)
Is simulator run time for Xcode 26 Beta 5 not given out yet?
However I am able to download simulators on Apple Silicon macs with same Universal installer.
Has anyone faced similar issue?
Hello!
I've been trying to automate tests using Appium/XCUITests in a React Native APP, but I'm finding many blockers.
They are related to the amount of nested elements in the "DOM" in which the XCUItest can not go deeper to get all the elements we need.
snapshotMaxDepth -> The XCUITest does not support more than 60 value, otherwise it returns the following error:
Got response with status 404: {"value":{"error":"stale element reference","message":"The previously found element "Application 'xyz.xxx.xxx'" is not present in the current view anymore. Make sure the application UI has the expected state. Original error: Error kAXErrorIllegalArgument getting snapshot for element <AXUIElementRef 0x600003aaf750> {pid=95967} {uid=[ID:1 hash:0x0]}","traceback":"(\n\t0 CoreFoundation 0x00007fff20405604 __exceptionPreprocess + 242\n\t1 libobjc.A.dylib 0x00007fff201a4a45 objc_exception_throw + 48\n\t2 WebDriverAgentLib 0x000000010a3caa53 -[XCUIElement(FBUtilities) fb_takeSnapshot] + 723\n\t3 WebDriverAgentLib 0x000000010a3cad07 -[XCUIElement(FBUtilities) fb_snapshotWithAttributes:maxDepth:] + 183\n\t4 WebDriverAgentLib 0x000000010a37baea +[FBXPath writeXmlWithRootElement:indexPath:elementStore:includedAttributes:writer:] + 778\n\t5 WebDriverAgentLib 0x000000010a37b12c +[FBXPath xmlRep...
But if I inform less than 60, the XCUITest is not able to get all the elements we need to automate:
There are many threads about this, all of them the issue is in the XCUITest:
https://github.com/appium/appium/issues/14825
https://discuss.appium.io/t/handling-staleelementreferenceexception/35095/11
https://github.com/appium/appium/issues/18085
https://discuss.appium.io/t/error-in-appium-desktop-refreshing-source-after-adding-snapshotmaxdepth-greater-than-62/34058
https://stackoverflow.com/questions/74235441/appium-cant-reach-elements-in-ios-source-tree-they-are-too-deep-works-fine-in
Tested all possible solutions suggested in the threads, but I will have the issue.
Hi,
We use Flat package installers (.pkg based installers) to install our applications on macOS. In macOS 26.1, installation is failing with the error
Unable to use PK session due to incompatible packages. Terminating. 2025-11-03 14:22:36+05:30 Admin-3 installer[1160]: Install failed: The Installer could not install the software because there was no software found to install.
Same installer package is working on macOS 26.
Any help is greatly appreciated.
Hello. In the Xcode 15 we were using this command in the terminal to run our tests on the Rosetta Simulator:
xcodebuild -workspace CoreLibraries.xcworkspace -scheme CoreLibraries -destination 'platform=iOS Simulator,name=iPhone 15,arch=x86_64' test`
In the Xcode 16 the same command doesn't work anymore. It produces the error:
xcodebuild: error: Unable to find a device matching the provided destination specifier:
{ platform:iOS Simulator, arch:x86_64, OS:latest, name:iPhone 16 }
Unsupported device specifier option.
The device “iPhone 16” does not support the following options: arch
Please supply only supported device specifier options.
Running test directly from the Xcode UI using iPhone 16 (Rosetta) still works fine.
Does anyone know how to modify the xcodebuild command to make it work again?
I've updated my computer to Sequoia 15, Xcode 16 and now no matter what I do, I am unable to work with Swift UI previews.
I get this error each time I try to run the preview:
Failed to launch app in reasonable time
I have done:
Uninstall/Re-install Xcode
Deleted derived data
Deleted the simulator data
Used DevCleaner to remove all data related to Xcode
Searched all websites about this issue. ( Non shown a good solution )
Write this question on here.
If anyone has found a solution, please let me know how you fixed it.
I failed to download Metal toolchain for Xcode Beta 5.
Downloading in Settings -> Components didn't work so I tried in terminal but didn't work too.
/tmp xcodebuild -downloadComponent metalToolchain -exportPath ~/Downloads
Beginning asset download...
2025-08-07 16:38:44.867 xcodebuild[91064:2244768] Writing error result bundle to /var/folders/bb/xtdv2kgn6rq3zxqs4f8f1j4w0000gn/T/ResultBundle_2025-07-08_16-38-0044.xcresult
xcodebuild: error: Failed fetching catalog for assetType (com.apple.MobileAsset.MetalToolchain), serverParameters ({
RequestedBuild = 17A5295f;
})
Topic:
Developer Tools & Services
SubTopic:
Xcode
I am facing a recurring issue with Xcode iOS simulator. I want to preview a SwiftUI for iOS in Xcode, but the Simulator app fails to boot up.
I receive the follow error in Xcode:
Cannot Preview in this file. Simulator was shutdown during an update.
I have tried the following:
Deleting Xcode cache
Reinstalling iOS Simulator runtimes
Completely uninstalling Xcode and deleting all developer data, then reinstalling
None of the above steps fix the problem. The only fix I have found is to completely reinstall MacOS 15.4.1. THIS IS TERRIBLE!
I have already reinstalled MacOS 15.4.1 once to fix the issue, and I don't want to do it again. If there is another solution, please help me find it!
Thank you!!