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Can DEVELOPER_DIR or xcode-select support Command Line Tools at custom paths?
I'm trying to manage multiple Command Line Tools versions side-by-side (e.g., 16.2 and 26.2). I renamed the CLT directory to /Library/Developer/CommandLineTools-26.2.0 and set: xcode-select -s /Library/Developer/CommandLineTools-26.2.0 or DEVELOPER_DIR=/Library/Developer/CommandLineTools-26.2.0 Both result in: c++: error: unable to find Xcode installation from active developer path "/Library/Developer/CommandLineTools-26.2.0" It appears CLT only works at the fixed path /Library/Developer/CommandLineTools, unlike Xcode which can be at any location. Is this by design? Is there a supported way to use multiple CLT versions in parallel, similar to how multiple Xcode versions can coexist?
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171
Jan ’26
Difficult to use XCode with Apple Watch
Trying to develop a little Watch app in Swift, and it's been kind of a miserable experience. I constantly get transport errors trying to connect to my watch. I've tried the trick of putting the Mac and the watch on my iPhone hotspot instead of just on the same WiFi network, but I am not sure that actually helps. I can run maybe once or twice, and then the transport error happens and it's very hard to get XCode to recognize the watch again. Also, when it DOES connect, it seems that XCode almost always loses the debugging connection (I just continue, and it IS actually running on the Watch at that point, but no debugger).
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Jan ’26
Unable to reset simulators
I'm unable to reset simulators using the menu or the xcrun simctl tool: <output of xcrun simctl list> == Devices == -- iOS 17.5 -- iPhone SE (3rd generation) (5A06623A-173D-4C96-8DD3-3E9FE39A06F1) (Shutdown) iPhone 15 (iOS 17.5) (F4329E8D-29BB-4EA7-8465-C11A98D04ED7) (Shutdown) -- iOS 18.0 -- iPhone SE (3rd generation) (2DDE8F03-F8E1-4C1B-8E28-CD9B208F3FFA) (Shutdown) iPhone 16 Pro (DE788688-8AC6-40A0-B25C-A56AA423798E) (Shutdown) iPhone 16 Pro Max (1405184C-36A9-40F3-B0D0-4EEB88452883) (Shutdown) iPhone 16 (0CBBA7DB-B20E-4F17-BBC5-910F1F6E1A0A) (Shutdown) iPhone 16 Plus (95421C27-11A0-4FCF-A889-DAAE8557B271) (Shutdown) == Device Pairs == ~/Library`` ❯ xcrun simctl erase 0CBBA7DB-B20E-4F17-BBC5-910F1F6E1A0A An error was encountered processing the command (domain=NSCocoaErrorDomain, code=513): “data” couldn’t be moved because you don’t have permission to access “Deleting-8FEDFF47-5B2F-4534-BCA2-036BBE68CE37”. You don’t have permission. To view or change permissions, select the item in the Finder and choose File > Get Info. Underlying error (domain=NSPOSIXErrorDomain, code=1): The operation couldn’t be completed. Operation not permitted Operation not permitted Xcode Version 16.0 (16A242d) MacOS 15.0.1 (24A348)
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1.8k
Jan ’26
I'm currently using macOS 26 and Xcode 26, but I'm unable to download iOS 26 simulators.
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
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1k
Jan ’26
Altool cannot authenticate with a managed Apple account
I am trying to list the providers on a managed Apple account using altool but I am getting an error. I am using the following command: xcrun altool --list-providers -u <apple-id> -p <app-specific-password> The error message indicates that a general error has occurred but does not specify what the root cause may be. 2026-01-05 11:13:29.272 ERROR: [altool.600001E6C1C0] Auth context delegate failed to get headers. Error Domain=ITunesConnectFoundationErrorDomain Code=1611 "Unable to generate an Apple Connect token at this time due to a general error" UserInfo={NSLocalizedDescription=Unable to generate an Apple Connect token at this time due to a general error} Failed to get providers. 2026-01-05 11:13:29.273 ERROR: [altool.600001E6C1C0] Unable to generate an Apple Connect token at this time due to a general error (1611) This command worked before the Apple ID was converted to a managed account. I have tried other managed accounts, as well as creating new app specific passwords but all fail with the same error. How can I accomplish this task with a managed Apple account?
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Jan ’26
Xcode 26 can no longer launch, and crashes immediately
Each time I try to launch Xcode 26, it immediately crashes in SourceEditorDataSource.ideChat_gracefullyApplyChangesToReflect. I'm now no longer able to use Xcode. A partial crash log attached. So far I've tried deleting derived data, rebooting, deleting ~/Library/Caches/com.apple.dt.Xcode. What should I do? Thank you in advance for any help. crash-report.txt
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Jan ’26
Why is Xcode taking forever to install/launch app?
Ever since Xcode 15 and iOS 17 came out development has quite often been a nightmare of waiting and waiting -Xcode displaying endless circles saying preparing the device, connecting to the device, installing the device. But recently to add to this, installation and launching is just taking really forever. I'm currently running Xcode 15.1 and various versions of iOS 17 (I have several phones) and installing the app from Xcode takes about 7 - 10 minutes (compared to the same app installing in seconds with Xcode 14 for example). Then once its finally installed, it then takes further minutes to launch, Xcode often actually displays a dialog saying its taking longer than expected to launch the app, adding the footnote "LLDB is likely reading from device memory to resolve symbols." What could be reasons, and solutions, for the excruciatingly slow installation time, and launch time? I really need to find a solution to this please - making a code change tweak, running, making another, running, making another, running, just isn't possible given the length of time it takes to install and launch each time. The iPhone is connected via physical cable to the Mac, and the Mac and iPhone are both on the same Wifi network. Xcode 15.1 M1 Macbook Pro Sonomo 14.0 iOS 17.2
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7.4k
Jan ’26
Xcode 26.1 Simulator download fails with DVTDownloadableErrorDomain code 41 and code 49 on macOS 26.1
I'm trying to download an iOS Simulator runtime in Xcode 26.2 or 26.1 on macOS 26.1, but the download keeps failing with the following error: Download failed. Domain: DVTDownloadableErrorDomain Code: 41 Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({ RequestedBuild = 23C54;}) 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;} macOS &amp; Xcode Info: macOS Version: 26.1 (Build 25B78) Xcode Version: 26.2 (24553) (Build 17C52) What I've tried so far: Formatted my Mac and reinstalled Xcode multiple times. Completely deleted Xcode and its related files several times (/Applications/Xcode.app, caches, preferences). Tried different internet connections from multiple locations. Checked Apple servers and verified network. Attempted downloading other simulator runtimes (fail). but download fails immediately with DVTDownloadableErrorDomain Code 41 and bad URL error. Question: How can I fix the simulator download issue in Xcode 26.2 on macOS 26.1? Is there a known workaround for the bad URL / catalog download error?
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Jan ’26
XCode reverts CoreData's .xccurrentversion
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?
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Dec ’25
xCode 26.2 Debug exetubale ON crashes on ios 26.2 devices
Hi, I am running build on ios 26.2 device, connected with cable (not wifi) and it crashes because files are not loaded or something. But when i turn off Debug Exetuble, it works just fine. Also, tried to run on ios 18.2 device, with Debug executable On - everything is ok, and breakpoints work. My guess, App crashes on reading and loading Assets and others app files like certificates. XCode run logs shows: **"Too many file errors". ** sample.txt xcode_run_logs.txt Also, exectued image list on lldb console, could not attach here, if needed i can add it with some url here.
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Dec ’25
Debugger breakpoints not hitting since updating to macOS 26.1
Hi, I have started facing an issue with Xcode since updating to macOS 26.1. The debugger is not stopping at breakpoints in Objective-C code, however breakpoints in Swift file are working fine. I am using Xcode 16.4. For breakpoints in Objective-C files I have started to get this message since the OS update - 'Xcode won't pause at this breakpoint because it has not been resolved.' I have already tried cleaning derived data and build folder. I do not want to upgrade to Xcode 26. Could someone help with the fix? Thanks
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125
Dec ’25
App Widget NSExtensionPrincipalClass found in extension Info.plist
My app is built in flutter and has a native Widget in it. The widget's Info.plist file has the NSExtensionPrincipalClass key that links to the VerseOfTheDayWidgetBundle as string. However the Transport app throws an error: Validation failed (409) Unexpected Info.plist key. Unexpected key NSExtensionPrincipalClass found in extension Info.plist for Payload/Runner.app/PlugIns/VerseOfTheDayWidgetExtension.appex. (ID: 266e2dd8-44b9-4d67-97d9-d7d47013cff9) Now I tried removing the NSExtensionPrincipalClass and but the simulator throws an error asking for the NSExtensionPrincipalClass or Storyboard class but my widget is completely written in SwiftUI and does not have a storyboard which is why I am using the NSExtensionPrincipalClass. I tried to bypass this by creating two info.plist files for my widget (debug and release) this bypassed the security check on Transporter but then the app wouldn't install in TestFlight confirming the same issue as the simulator. I can confirm that my app's info.plist does not have any mention of NSExtensionPrincipalClass. so that isn't what is causing this error. I tried a lot of things but it just wouldn't work, at this point I feel maybe its something wrong with the checks Transporter app. I'm not sure, please guide me. The widget and the app work completely fine on the simulator with the NSExtensionPrincipalClass, its just the Transporter that does not like it being there.
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Dec ’25
Building with Xcode on macOS Tahoe does not launch in iOS 12
When trying to launch an app built with Xcode in iOS12, differences occur depending on the macOS version on which Xcode is installed. When building with Xcode 26.2 (or Xcode 16.4) installed on macOS Sequoia, installing it on iOS 12 and tapping the app icon launches the app. When building with Xcode 26.2 (or Xcode 16.4) installed on macOS Tahoe, installing it on iOS 12 and tapping the app icon does not launch the app. The following log was displayed upon launch: Dec 15 11:46:35 xxx assertiond[58] <Notice>: Submitting new job for "com.xxx.sample" on behalf of <BKProcess: 0x10151a710; SpringBoard; com.apple.springboard; pid: 48; agency: SystemShell; visibility: foreground; task: running> Dec 15 11:46:35 xxx assertiond[58] <Notice>: Submitted job with label: UIKitApplication:com.xxx.sample[0x2dfd][58] Dec 15 11:46:35 xxx assertiond[58] <Notice>: Unable to get pid for 'UIKitApplication:com.xxx.sample[0x2dfd][58]': No such process (3) The same issue occurs with both .app and .ipa. I would like to know the technical reason behind this, if anyone knows, please let me know.
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Dec ’25
Xcode Intelligence AI feature seems to fail on slow networks
Intelligence AI powered feature fails on complex project with network error when “Reasoning” is set higher then “Low”. The visual feedback shows sending some context and answer being generated, but eventually stops with network error. Retries with “Reasoning” set higher than “Low”. won’t help, but retries or same queries with “Low” or "Minimal" reasoning always succeed. It is obvious that connectivity is not lost but looks like some kind of timeout expires and cancels the response, even not the request. Visual feedback shows the context being successfully uploaded and even shows the indicator of the answer being generated.
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Dec ’25
We have a problem
Lots of pepole is wait for Xcode to be in for 15 years. And peole and kids especially me are crying about it swift is the worst its good but you can’t change the screens iPhone Xcode is better so how do I get Xcode for iPadOS?
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Dec ’25
No output appears on tvOS simulator when creating a new game project Xcode 26.2
When I create a new tvOS game and run the default project the simulator window appears but nothing is shown. When I create a MultiPlatform Game project and run the demo project for AppleTV the simulator work correctly. I do not get any errors just a blank screen. Also clicking on the Home icon in the simulator or the actual AppleTV does nothing. Drew
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Dec ’25