In the first Xcode 16 beta, none of my SwiftUI previews work - they all just crash on start up. Has anybody run into this and found a workaround? Have tried all the usual steps of cleaning the project/restarting Xcode.

Since upgrading my iPhone 13 Pro Max to iOS 26, apps have become nearly impossible to debug. The recent update to iOS 26.1 has made this even worse. Going from app start to a fully rendered & responding screen takes <1 second on a Debug build when no debugger is attached, but with the debugger attached I get these times (measured manually with a stopwatch): First render: <1 second without debugger 5 seconds on USB debugger 30 seconds on wireless debugger Data loaded from webserver and UI responding: <1 second without debugger 19 seconds on USB debugger 5 minutes on wireless debugger! Doing an online speed test reports 55 Mbps for the phone and 60 Mbps on the MacBook, so I doubt it's my WiFi. Having a debugger attached used to make minimal difference on iOS 18, but the performance has tanked completely since the last major release. What happened?

I added a new liquid glass icon built with Icon Composer to my app. It works and looks great on iOS 26 but Xcode complains that required icon files for older versions are missing. I still have the old AppIcon in my Asset Catalog but it seems like it's not being used. How do I configure Xcode to use the old icons for iOS 18 and the new icon for iOS 26?

Several app developers are struggling with the inability to provide a separate app icons that looks nice on older macOS versions while at the same time provide Icon Composer icons that look great on macOS Tahoe 26. An ability to provide separate icons is super important to those who have app icons that follow the curvature of the default icon borders (as the corner rounding radius is different for Sequia and Tahoe). Take a look at this for example: https://github.com/ghostty-org/ghostty/issues/7564#issuecomment-3042061547 Question: Is there a definitive/recommended way to address this issue? How can a developer add a glass icon variant that looks good on Tahoe and provide a bitmap icon for older macOS versions? Some background info: Prior to Xcode 26 beta 4, one could add an App Icon to Assets to be used as app icon for legacy macOS versions (Sequia and older) and use a new Icon Composer icon (placed in the project root) for macOS Tahoe 26. Enabling "Include all app icon assets" under target settings ensured that older macOS versions would use the old app icons while Tahoe the new Icon Composer glass one. Since Xcode beta 4 this technique no longer works. Xcode instead insists on populating Assets.car with Icon Composer generated variants, disregarding the App Icon provided in Assets. Although the App Icon in Assets makes its way to a .incs file in the app bundle's Contents/Resources folder, but that is not used by macOS anymore and is there for some compatibility purposes. The Assets.car file (which matters) only contains the variants generated by Icon Composer and does not contain the png icons provided in the Assets.

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?

My company's app has a few widgets and a couple of them we do not want to show up on CarPlay due to safety concerns when iOS 26 releases. I understand Apple's recommended way to prevent users from using your widget in CarPlay is to use the .disfavoredLocations([.carPlay], for: [.systemSmall]), and this puts your widget in the 'Other' section of the widgets. https://developer.apple.com/download/files/CarPlay-Developer-Guide.pdf However, this .carPlay widget location is only available in Xcode 26, and our app cannot be built on Xcode 26 yet due to some build errors. We are able to fix those build errors in a separate branch, but we won't be doing our official release builds on Xcode 26 until it is out of beta, which is usually right before iOS 26 officially releases to general audiences. We release our app versions on a monthly cadence, so the version that will be out when iOS 26 comes out is already in testing. Is there any existing way we can disable this widget on CarPlay so it does not appear to work when tapped? Currently, it opens our CarPlay app, but the CarPlay app does nothing with it. On the iPhone, when you tap the widget it opens our app and performs a function. We don't wan't to disable it on the iPhone, just when it's on CarPlay. We don't have time before the app release to implement the same functionality on our CarPlay app. I haven't found any reliable way to detect if the widget is running in the CarPlay location versus the iPhone home screen. Thanks in advance for any assistance.

Hey, I've updated to both Xcode 26 Beta 4 and MacOS 26 Beta 4. Both run super stable so far. However, every time I use Xcode Previews for a few minutes, the entire system freezes for a few seconds and then crashes and reboots. I'm trying to generate a system diagnosis (which it offers me after the reboot), but it seems to be stuck generating. It's hard to say what exactly causes the crash, unfortunately. But it happened multiple times after starting to use Xcode Previews. Anyone else has that problem? I've also filed a feedback for this: FB19013059 Cheers Dennis

ChatGPT in Xcode 26.1 is super slow for me. What used to complete in a batter f seconds is now taking tens of minutes. Context: M2 Pro MBP, Xcode 26.1, macOS 26.1. CPU stays under 50% while ChatGPT returns. Using the minimal setting. Tried restarting, have verified I have nothing running Electron, no other apps are running. ChatGPT returns fast for the displayed content but the preview window where it renders code per line takes a few seconds per line.

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

I’m seeing a regression in Xcode 26.4 where Interface Builder will not allow connecting IBOutlets or IBActions. Symptoms: The usual gutter circle/dot does not appear next to IBOutlet / IBAction in the code editor Because of this, I cannot: drag from storyboard → code drag from code → storyboard The class is valid and already connected to the storyboard (existing outlets work) Assistant Editor opens the correct view controller file Important: The exact same project, unchanged, works perfectly in Xcode 26.3. I can create and connect outlets/actions normally there. ⸻ Environment Xcode: 26.4 macOS: 26.4 Mac Mini M4 Pro 64G Ram Project: Objective-C UIKit app using Storyboards This is a long-running, ObjC, project (not newly created) ⸻ What I’ve already tried To rule out the usual suspects: Verified View Controller Custom Class is correctly set in Identity Inspector Verified files are in the correct Target Membership Verified outlets are declared correctly in the .h file: @property (weak, nonatomic) IBOutlet UILabel *exampleLabel; Opened correct file manually (not relying on Automatic Assistant) Tried both: storyboard → code drag code → storyboard drag Tried using Connections Inspector Clean Build Folder Deleted entire DerivedData Restarted Xcode Updated macOS to 26.4 Ran: sudo xcodebuild -runFirstLaunch Confirmed required platform components installed Reopened project fresh ⸻ Observations In Xcode 26.4 the outlet “connection circles” are completely missing In Xcode 26.3 they appear immediately for the same code Existing connections still function at runtime — this is purely an Interface Builder issue ⸻ Question The gutter circles appearance has always been flaky in Xcode over the 13+ years I've been using it but now with 26.4 they have completely disappeared. Has anyone else seen this in Xcode 26.4, or found a workaround? At this point it looks like a regression in Interface Builder, but I haven’t found any mention of it yet.

Hello, I am trying out Xcode Cloud for the first time. I could connect to Github in the initial setup and had a few failed builds (package resolution error), which I resolved fairly quickly. Now whenever I am trying to build, I get the following error: Xcode Cloud is unable to connect to the repository “<respository-name>”. Reconnect the repository to resume builds. I am unable to remove the connection from settings as well because it's stuck in a loading state. Is there a way to fix this?

WKWebView based apps crash in today's Xcode 16.4 iOS 18.5 simulator with messages including: "Library not loaded: /usr/lib/swift/libswiftWebKit.dylib" and of the form "/Users/yyy/Library/Developer/Xcode/DerivedData/zzz/Build/Products/Debug-iphonesimulator/libswiftWebKit.dylib' (no such file)"

I'm trying to write performance tests with Xcode 15, but it's not working: even though setting a baseline seems to work (baseline data files are created), Xcode seems to ignore that baseline altogether whenever the test is run. As a result, performance tests never fail, no matter how bad performance gets. The source editor persistently displays a “No baseline average for Time” message. Has anyone else encountered this? Figured out how to sidestep the issue? Of note, the issue is easily reproduced: create a new (macOS in my case) app project with tests, add a dummy performance test; run the test once and save its baseline, and despite this subsequent tests will always succeed, even if you significantly slow the dummy test down. (I've filed this as FB13330139)

‌Using Xcode 26, the built package encounters device compatibility issues — while it installs successfully on supported iPhone devices, but it crashes immediately upon launch and cannot run normally.‌‌In previous versions of Xcode, the same "minimum deployment" setting in the project did not cause such compatibility issues.‌ The app built with Xcode 26 shows the following behavior when installed and tested on various devices:‌ iPhone6p iOS12.5.8 fails to run 2.iPhone6 iOS11 fails to run 3.Iphone6 iOS12.5.7 fails to run 4.iPhone7 iOS12.1.3 ok 5.iPhoneX iOS 12.2 ok 6.iphone6s plus iOS10.3.1 ok 7.iphoneXS. iOS 12.1.4 ok 8.iPhone11 iOS 13.6.1 ok 9.iPhone7. iOS 13.7 ok We have tested and found that an iPhone 6s Plus running iOS 10.3.1 can normally run the app. We would like to know whether apps built with Xcode 26 are inherently incompatible with iPhone 6 and older devices. Has Xcode 26’s underlying build environment removed full support for the A8 chip, resulting in binary files containing instructions or memory models that older devices cannot parse? ‌Looking forward to your reply‌.

An internal error occurs when executing the xcodebuild -list command targeting a Swift Package. This behavior is new in Xcode 16.3 and was not present in the previous version, Xcode 16.2. cd ~/Developer mkdir Playground cd Playground swift package init xcodebuild -list Command line invocation: /Applications/Xcode-16.3.0.app/Contents/Developer/usr/bin/xcodebuild -list Resolve Package Graph ** INTERNAL ERROR: Unable to load workspace '/Users/treastrain/Developer/Playground' ** Uncaught Exception: -[Swift.__SwiftDeferredNSArray intersectsSet:]: unrecognized selector sent to instance 0x600001aab5e0 Stack: 0 __exceptionPreprocess (in CoreFoundation) 1 objc_exception_throw (in libobjc.A.dylib) 2 -[NSObject(NSObject) __retain_OA] (in CoreFoundation) 3 ___forwarding___ (in CoreFoundation) 4 _CF_forwarding_prep_0 (in CoreFoundation) 5 -[DVTCoreDevice(DVTCoreDeviceIDE) deviceSupportsBuildable:buildParameters:error:] (in IDEFoundation) 6 -[DVTCoreDevice(DVTCoreDeviceIDE) supportedArchitecturesForBuildableContext:buildParameters:error:] (in IDEFoundation) 7 _IDERunDestinationsForBuildableUsingDeviceWithBuildParameters (in IDEFoundation) 8 -[IDERunDestinationManager runDestinationsForScheme:schemeCommands:executionEnvironment:eligibleOnly:genericOnly:architectureVisibility:] (in IDEFoundation) 9 IDESchemeDetermineAvailableRunDestinations (in IDEFoundation) 10 -[IDEScheme _actuallyInvalidateAvailableRunDestinations] (in IDEFoundation) 11 addSchemeAndMakeActiveIfNecessary #1 (result:error:) in IDESwiftPackage.generateScheme(with:buildable:additionalBuildables:unsetRunnable:makeActive:orderHint:) (in IDESwiftPackageCore) 12 IDESwiftPackage.generateScheme(with:buildable:additionalBuildables:unsetRunnable:makeActive:orderHint:) (in IDESwiftPackageCore) 13 IDESwiftPackage.generateSchemes(_:isRootPackage:) (in IDESwiftPackageCore) 14 IDESwiftPackage.update(from:graphHasErrors:delegate:) (in IDESwiftPackageCore) 15 specialized IDESPMWorkspaceDelegate.rootPackagesDidUpdate(packages:graphHasErrors:modelGraphSynchronizerToken:) (in IDESwiftPackageCore) 16 closure #1 in IDESPMWorkspaceDelegate.packageGraphDidFinishAction(_:duration:result:) (in IDESwiftPackageCore) 17 partial apply for closure #1 in IDESPMWorkspaceDelegate.disableWorkspaceContentSynchronization(during:) (in IDESwiftPackageCore) 18 <deduplicated_symbol> (in DVTFoundation) 19 <deduplicated_symbol> (in DVTFoundation) 20 thunk for @escaping @callee_guaranteed () -> () (in DVTFoundation) 21 __58-[DVTModelObjectGraph performBlockCoalescingModelChanges:]_block_invoke (in DVTFoundation) 22 -[DVTModelGraphTransactionScope performTransaction:] (in DVTFoundation) 23 -[DVTModelObjectGraph performBlockCoalescingModelChanges:] (in DVTFoundation) 24 DVTModelObjectGraph.performBlockCoalescingModelChanges<A>(_:) (in DVTFoundation) 25 IDESPMWorkspaceDelegate.disableWorkspaceContentSynchronization(during:) (in IDESwiftPackageCore) 26 IDESPMWorkspaceDelegate.packageGraphDidFinishAction(_:duration:result:) (in IDESwiftPackageCore) 27 <deduplicated_symbol> (in IDESwiftPackageCore) 28 SPMWorkspace.packageGraphActionFinished(_:) (in SwiftPM) 29 closure #2 in closure #3 in SPMWorkspace.processPackageGraphActionsInBackgroundIfNeeded(canProcessPackageGraphActions:) (in SwiftPM) 30 <deduplicated_symbol> (in SwiftPM) 31 <deduplicated_symbol> (in SwiftPM) 32 <deduplicated_symbol> (in SwiftPM) 33 completeTaskWithClosure(swift::AsyncContext*, swift::SwiftError*) (in libswift_Concurrency.dylib) zsh: abort xcodebuild -list Environments: % xcodebuild -version Xcode 16.3 Build version 16E140 % swift --version swift-driver version: 1.120.5 Apple Swift version 6.1 (swiftlang-6.1.0.110.21 clang-1700.0.13.3) Target: arm64-apple-macosx15.0

Xcode 16.2 runs well, but encountered the problem in Xcode 16.3.

Each time I launch a Debug version of the app on iOS Simulator, I see the Launch Screen presented and then about a 30-second delay before the app is responsive and debug output appears in the console panel. Filed FB22345091

I recently switched to Mac OS 12 and XCode 13. I did some work on my application and rebuilt it. Now there is no Help Book. I didn't change the property lists and everything looks right. When I open the Help Book the application either opens a window with a message that the content is currently unavailable or it opens a Help Book window with no content. When this second thing happens the log window shows "entering AHRegistered help Book" but it doesn't appear. Does anyone have any suggestions?

It didn't happen with Xcode 16.2 that I used before, but after updating to 16.3, when I build the app, the following error is output to the console and the app doesn't run. dyld[2150]: Symbol not found: ___cxa_current_primary_exception Referenced from: <6B00A4F2-B208-3FDB-BA38-B7095AF0034A> /private/var/containers/Bundle/Application/B590DB18-9C66-4C9E-8330-104943419E60/Mubeat DEV.app/Mubeat DEV.debug.dylib Expected in: <7F51CB08-A0CA-386E-BB62-4B8BFB0CED9F> /usr/lib/libc++.1.dylib Symbol not found: ___cxa_current_primary_exception Referenced from: <6B00A4F2-B208-3FDB-BA38-B7095AF0034A> /private/var/containers/Bundle/Application/B590DB18-9C66-4C9E-8330-104943419E60/Mubeat DEV.app/Mubeat DEV.debug.dylib Expected in: <7F51CB08-A0CA-386E-BB62-4B8BFB0CED9F> /usr/lib/libc++.1.dylib dyld config: DYLD_LIBRARY_PATH=/usr/lib/system/introspection DYLD_INSERT_LIBRARIES=/usr/lib/libBacktraceRecording.dylib:/usr/lib/libMainThreadChecker.dylib:/usr/lib/libRPAC.dylib:/Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib After looking for another solution, I found a way to remove the -Objc option in Other Linker Flags, but this method only works on iOS 18.4 and doesn't work on other versions. Is there another solution?

Hello, we are struggling for hours with the following issue: I have an individual developer account and since yesterday I'm member of developer team with an own organization account. I have access to an app in the team account as an "App-Manager", also the option "Access to Certificates, Identifiers & Profiles" is activated and I can see that it is activated for my account in AppstoreConnect. In "Apple Developer" I can also see the team and can switch to. But then I do not see the "Certificates, Identifiers & Profiles" menu entry. Also the team is not showing up in XCode. What am I missing? Thanks and regards Philipp