Failed fetching catalog for assetType (com.apple.MobileAsset.MetalToolchain), serverParameters ({ RequestedBuild = 17A5295f; }) Domain: DVTDownloadsUtilitiesErrorDomain Code: -1 User Info: { DVTErrorCreationDateKey = "2025-08-08 07:59:24 +0000"; } Failed fetching catalog for assetType (com.apple.MobileAsset.MetalToolchain), serverParameters ({ RequestedBuild = 17A5295f; }) Domain: DVTDownloadsUtilitiesErrorDomain Code: -1 Download failed due to not being able to find the host. (Catalog download for com.apple.MobileAsset.MetalToolchain) Domain: com.apple.MobileAssetError.Download Code: 59 User Info: { checkConfiguration = 1; } System Information macOS Version 26.0 (Build 25A5327h) Xcode 26.0 (24198.5) (Build 17A5295f) Timestamp: 2025-08-08T08:59:24+01:00

I was working on an app I'm trying to create. It includes an Apple Watch paired with an iPhone. I am creating an Info.plist file, but every time I do it, I get either two errors: One saying that multiple commands are creating an Info.plist file. To fix this command, I turned off "Generate Info.plist file" in Build Settings. After I do that, I get a new error: One saying that no command creates an Info.plist file. To fix that, I made sure the target for the Info.plist file is set to my watch. I am going in circles, and I keep getting errors. Can anyone help?

Fails to gather code coverage and throws this error Showing All Messages Failed to merge raw profiles in directory /Users//Library/Developer/Xcode/DerivedData/Receiver-ekqrbpsaciuxmlfslviajhoecyat/Build/ProfileData/0B0C6B69-FD46-4801-B106-56B7FCD44370 to destination /Users//Library/Developer/Xcode/DerivedData/Receiver-ekqrbpsaciuxmlfslviajhoecyat/Build/ProfileData/0B0C6B69-FD46-4801-B106-56B7FCD44370/Coverage.profdata: Aggregation tool '/Users/shwethamugeraya/Downloads/Xcode 2.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/llvm-profdata' failed with exit code 1: warning: /Users/shwethamugeraya/Library/Developer/Xcode/DerivedData/Receiver-ekqrbpsaciuxmlfslviajhoecyat/Build/ProfileData/0B0C6B69-FD46-4801-B106-56B7FCD44370/2F4EFBF7-1CCF-4E9E-8FD6-482EEDB98B6C-34646.profraw: raw profile version mismatch: Profile uses raw profile format version = 4; expected version = 8 PLEASE update this tool to version in the raw profile, or regenerate raw profile with expected version. error: no profile can be merged

I have a project that leverages XPC and has interoperability between Swift and Objective-C++. I am presently getting a compile-time error in one of our unit test targets, of "Argument passed to call that takes no arguments" on the following code: let interface = NSXPCInterface(with: XPCServiceDelegate.self) My XPCServiceDelegate protocol is defined as: @objc(XPCServiceDelegate) public protocol XPCServiceDelegate { //... } For the longest time, this code has compiled successfully, and it has not recently changed. There are two confusing things about this error. The first is that I have a different build scheme that will compile correctly other code with the same structure. The other is that I have team members that are able to compile my failing scheme successfully on the same XCode version, OSVersion, and branch of our repository. I've attempted numerous things to try to get this code to compile, but I've run out of ideas. Here's what I've tried: Clean build both on XCode 16.4 and XCode 26 Beta Delete DerivedData and rebuild on XCode 16.4 and XCode 26 Beta Delete and re-clone our git repository Uninstall and reinstall XCode Attempt to locate cached data for XCode and clear it out. (I'm not sure if I got everything that exists on the system for this.) Ensure all OS and XCode updates have been applied. The interface specification for NSXPCInterface clearly has an initializer with one arguement for the delegate protocol, so I don't know why the compiler would fail for this. Is there some kind of forward declaration or shadowing of NSXPCInterface? Do you have any ideas on what I could try next?

I am trying to move over from AppCode/Intellij to Xcode. I am however having a hard time with the version control tools. I know that you can choose side-by-side when you activate "code review" and select single files. However, if you go into changes and view the list of files that have changed, i can only get inline-view to work. This is really frustrating to me, is there any way to get side-by-side also when you select a file from the changes list? Cheers

Starting Xcode 14, iOS Simulator is able to communicate with APNs in order to register for notification in the sandbox environment. I created a sample test for this. A dumb iOS application that registers for notifications. It has UITests to automatize the tap on the consent popup (it is not possible to ask for the permission via CLI sadly). Once the application registers, the AppDelegate method didRegisterForRemoteNotificationsWithDeviceToken is called and the device token is sent to a local server application (node.js). The test itself creates an iOS 18.6 Simulator with xcrun simctl, builds such app and run the tests through through CLI with xcodebuild. Running this on my personal Macbook Pro M1 2021 goes well every time, so I wanted to bring it on Github Actions (arm64 macOS machines), in order to test the works on a open source library I'm building (hapns). Contacting Github support led me to test this on a macOS image running inside a VM inside a Veertu Anka container on my personal Macbook Pro, due to an VM architectural limit suspicion. The results were the same: iOS simulator isn't able to receive the device token. Not even didFailToRegisterForRemoteNotificationsWithError is called (tested through some network probes-requests that communicate to the server which checkpoints the process reached). So, as asked, I've setup a repro-case to be run in the VM and I've collected VM diagnostics ready to be tested and attached. Does anyone know if there is some unspecified (or specified but buried in the documentation) limit for this? Thanks. Github discussion link for further details, repro-case and so on: https://github.com/actions/runner-images/issues/12747

I have a multi target project where every target relies on a built "web bundle" which is basically a collection of html, optimized images, and optimized javascript. Right now that web bundle is built in a pre build step by running a script. The script takes awhile to run and outputs to a folder that is referenced into the project via a PBXFileReference which is then referenced in the Copy Bundle Resources step. 96516AC22BF928DD00576562 /* build */ = {isa = PBXFileReference; lastKnownFileType = folder; name = build; path = "../web-ui/build"; sourceTree = "<group>"; } .... 96516AC32BF928DD00576562 /* build in Resources */ = {isa = PBXBuildFile; fileRef = 96516AC22BF928DD00576562 /* build */; }; As a step, I wrote an aggregate target that can also run this script. I specified its input and output files and turned off sandboxing. It does exactly what I need it to. Critically it is ran based on dependency analysis. If I modify any file in web-ui it rebuilds, if I dont I can repeatedly build the aggregate target and it will not re-run the script. This is perfect. A97590172E419CBA00741928 /* Build Web Bundle */ = { isa = PBXShellScriptBuildPhase; buildActionMask = 12; files = ( ); inputFileListPaths = ( ); inputPaths = ( "$(SRCROOT)/xcodescripts/build-web-bundle.bash", "$(SRCROOT)/web-ui/index.html", "$(SRCROOT)/web-ui/vite-env.d.ts", "$(SRCROOT)/web-ui/vite.config.ts", "$(SRCROOT)/web-ui/tsconfig.json", "$(SRCROOT)/web-ui/stats.html", "$(SRCROOT)/web-ui/postcss.config.js", "$(SRCROOT)/web-ui/package.json", "$(SRCROOT)/web-ui/justfile", "$(SRCROOT)/web-ui/src/", ); name = "Build Web Bundle"; outputFileListPaths = ( ); outputPaths = ( "$(SRCROOT)/web-ui/build/", ); runOnlyForDeploymentPostprocessing = 0; shellPath = /bin/sh; shellScript = "exec \"${SCRIPT_INPUT_FILE_0}\"\n"; }; You may notice I reference a src file. This is made possible via a flag USE_RECURSIVE_SCRIPT_INPUTS_IN_SCRIPT_PHASES which allows Xcode to check folder dependencies recursively. The problem is that my other targets do not automatically recognize that they need to run the "WebBundle" aggregate target in order to update a resource they copy in their "Copy bundle resources" phase. So I tried adding it as a Target Dependency. A9DE685B2E41C9A8005EF4E0 /* PBXTargetDependency */ = { isa = PBXTargetDependency; target = A97590132E419C1200741928 /* WebBundle */; targetProxy = A9DE685A2E41C9A8005EF4E0 /* PBXContainerItemProxy */; }; Unfortunately this breaks whatever magic was allowing the script to be run only when there are web bundle changes. Every build it runs the "Build Web Bundle" script. I think what I am missing is a way to specify in these other targets that a resource they are used to copying from the Xcode PBXFileReference is produced by the aggregate target. This way they can start to reason about the dependencies. Other possibilities are that I should be building the web bundle to a separate location. Or that these references are somehow broken in another way. To be clear the folder format is as thus project/ iOS/ client.xcodeproj web-ui/ build/ (web bundle build is output here and referenced relatively) src/ index.html (and other things)

My current laptop has reached its Zenith... I'm running a MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports) with Montery 12.7.6. I can no longer upgrade the software Xcode so I'm stuck in X Code Version 14.2. I've built an app. I need to upload and push to my mobile, but I can't b/c of the old software. I've moved the files to my wife's newer MacBook, but the app doesn't work. I have no problem buying a newer Mac, I want to make sure that it will work prior to. The Apple Store couldn't help, and requested that I contact Apple Care.. which Tier 2 could not assist. If anyone is out there that can assist, I will be greatly appreciative.

Is iOS 26 Beta 6 available in the iOS Simulator? I saw that the latest betas launched earlier this week. I updated my dev machine to macOS 26 Beta 6, however this release had no corresponding Xcode 26 Beta 6. So I am still running Xcode Beta 5 and when I go into Settings -> Components within Xcode there is no option to install iOS 26 Beta 6. It's still running Beta 5 for macOS and iOS. Is that correct? My current assumption is that iOS Beta 6 is for physical devices only?

Below is an English version of your post, ready to copy-and-paste into the Apple Developer Forums: I’m seeing a crash in Xcode 26 beta 3 whenever the StoreKit symbol SKStoreProductParameterAdNetworkSourceIdentifier is present while running on an iOS 15 simulator. Steps to reproduce Install Xcode 26 beta 3. Create any iOS app and run it on an iOS 15 simulator (device model doesn’t matter). Add the following code anywhere and run: override func viewDidLoad() { super.viewDidLoad() if #available(iOS 16.1, *) { print("SKStoreProductParameterAdNetworkSourceIdentifier: \(SKStoreProductParameterAdNetworkSourceIdentifier)") } } The project builds successfully, but before the #available(iOS 16.1, *) check is reached, the app crashes with: Symbol not found: _SKStoreProductParameterAdNetworkSourceIdentifier When I build the same project with Xcode 16.4 and launch it on an iOS 15 simulator, it runs without crashing. Investigation so far Because SKStoreProductParameterAdNetworkSourceIdentifier is just an NSString, I could substitute the string literal "SKStoreProductParameterAdNetworkSourceIdentifier" as a temporary workaround, but that doesn’t feel like a proper fix. The symbol is still declared in both SDKs: /Applications/Xcode-16.4.0.app/.../StoreKit.framework/Headers/SKAdNetwork.h:48: SK_EXTERN NSString * const SKStoreProductParameterAdNetworkSourceIdentifier API_AVAILABLE(ios(16.1)) API_UNAVAILABLE(macos, watchos, visionos); /Applications/Xcode-26.0.0-Beta.3.app/.../StoreKit.framework/Headers/SKAdNetwork.h:48: SK_EXTERN NSString * const SKStoreProductParameterAdNetworkSourceIdentifier API_AVAILABLE(ios(16.1)) API_UNAVAILABLE(macos, watchos, visionos); So the symbol hasn’t been removed in the beta SDK. Given that the code is wrapped in #available(iOS 16.1, *), I don’t believe the sample itself is at fault. Questions Could this be a bug in Xcode 26’s availability checking or linker? Has anyone else encountered the same issue or found a more robust workaround? Any insights would be greatly appreciated.

Hi, Ever since upgrading to Version 26.0 beta 5 (17A5295f) Xcode constantly locks up with the Beach Ball of Death icon. I can't even work on any apps/projects. Anyone else having issues? Dan Uff

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; })

Ok, I'm going crazy here. I have a static library for iOS that I want to build for the simulator. I use xcodebuild -destination="iOS Simulator" and then check the library using otool which tells me the platform is 6, which is Mac Catalyst. When I look at the output of xcodebuild, it says --- xcodebuild: WARNING: Using the first of multiple matching destinations: { platform:macOS, arch:arm64, variant:Mac Catalyst, id:00006041-0008492E3AA1801C, name:My Mac } ... It has the simulator listed too, way down the list: { platform:iOS Simulator, arch:x86_64, id:AB7A99B3-8D24-4F73-A42D-9BB45321928D, OS:18.6, name:iPad (A16) } When I put all of that into xcodebuild for the platform, it still says there are multiple matching destinations and chooses Mac Catalyst. Why? How? What? Does platform="iOS Simulator" mean nothing? How in the world does "Mac Catalyst" match "iOS Simulator"????? I don't want Mac Catalyst, I don't need Mac Catalyst, and I can't get rid of Mac Catalyst. Nothing I specify in xcodebuild results in anything I can build that will compile for the simulator. What the heck am I doing wrong?

With Xcode 26.0 beta 5 (17A5295f) when I run the following command xcodebuild -downloadComponent metalToolchain I get the following error: xcodebuild[48851:12478851] Writing error result bundle to /var/folders/b_/g67r_tl557z244g20ncr_qmsd9wrz1/T/ResultBundle_2025-07-08_11-10-0012.xcresult xcodebuild: error: Failed fetching catalog for assetType (com.apple.MobileAsset.MetalToolchain), serverParameters ({ RequestedBuild = 17A5295f; }) I can't install the toolchain from the Xcode GUI also. Does someone know a workaround ?

I’m exploring the new AI-assisted development features in Xcode 26, particularly the integration with MCP (Model Context Protocol) servers. I have two related questions about future capabilities: 1. Configuration flexibility – Will future versions of Xcode provide more granular configuration options? For example, being able to adjust model parameters, set custom request headers? 2. Custom MCP servers – Will it be possible to connect Xcode to a custom MCP servers? It would be great to know if these capabilities are on the roadmap, and if so, what the expected level of customization might be. Thank you.

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?

OS version:15.6 (24G84). mac mini m 4 Xcode:16.4 stack: Translated Report (Full Report Below) Process: Xcode [5261] Path: /Applications/Xcode.app/Contents/MacOS/Xcode Identifier: com.apple.dt.Xcode Version: 16.4 (23792) Build Info: IDEApplication-23792000000000000~2 (16F6) App Item ID: 497799835 App External ID: 874973124 Code Type: ARM-64 (Native) Parent Process: launchd [1] User ID: 501 Date/Time: 2025-08-11 19:57:18.7642 +0800 OS Version: macOS 15.6 (24G84) Report Version: 12 Anonymous UUID: 314F3813-7BB3-0263-1826-79D64A62D963 Time Awake Since Boot: 700 seconds System Integrity Protection: enabled Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000001, 0x00000001ab5dc1f8 Termination Reason: Namespace SIGNAL, Code 5 Trace/BPT trap: 5 Terminating Process: exc handler [5261] Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libswiftCore.dylib 0x1ab5dc1f8 assertionFailure(:_:file:line:flags:) + 176 1 libswiftCore.dylib 0x1ab64a378 swift_unexpectedError + 656 2 IDEKit 0x108d2edc4 EditorGalleryView.exhibitIdentifiers(in:) + 972 3 IDEKit 0x108d2978c EditorGalleryView.commitState(to:) + 2640 4 IDEKit 0x108d29a64 @objc EditorGalleryView.commitState(to:) + 52 5 DVTFoundation 0x1046fe9d0 -[DVTStateToken _copyStatefulObjectState] + 84 6 DVTFoundation 0x1046feaa8 -[DVTStateToken pushStateToRepositoryAndReturnError:] + 52 7 DVTFoundation 0x10481ab48 -[DVTStateRepository _updateStateIfNeeded] + 232 8 DVTFoundation 0x1046fe9f0 -[DVTStateToken _copyStatefulObjectState] + 116 9 DVTFoundation 0x1046feaa8 -[DVTStateToken pushStateToRepositoryAndReturnError:] + 52 10 DVTFoundation 0x10481ab48 -[DVTStateRepository _updateStateIfNeeded] + 232 11 DVTFoundation 0x1046fe9f0 -[DVTStateToken _copyStatefulObjectState] + 116 12 DVTFoundation 0x1046feb04 -[DVTStateToken _stateDictionary] + 12 13 IDEKit 0x1089a2a38 -[IDEEditorContext _currentHistoryItemAllowingCoalescingAdjustment:] + 508 14 IDEKit 0x10899f11c -[IDEEditorContext willBeginTransactionScopeForNavigableItemCoordinator:] + 332 15 IDEKit 0x1087b3600 __35-[IDENavigableItemCoordinator init]_block_invoke + 148 16 DVTFoundation 0x1047a3ef0 -[DVTObservingBlockToken observeValueForKeyPath:ofObject:change:context:] + 440 17 Foundation 0x19b49c7b4 NSKeyValueNotifyObserver + 252 18 Foundation 0x19b549560 NSKeyValueDidChange + 388 19 Foundation 0x19b48f99c -[NSObject(NSKeyValueObservingPrivate) _changeValueForKeys:count:maybeOldValuesDict:maybeNewValuesDict:usingBlock:] + 760 20 Foundation 0x19b4b805c -[NSObject(NSKeyValueObservingPrivate) _changeValueForKey:key:key:usingBlock:] + 64 21 Foundation 0x19b577434 _NSSetBoolValueAndNotify + 404 22 DVTFoundation 0x104895f18 -[DVTModelGraphTransactionScope _beginTransactionDownward] + 48 23 DVTFoundation 0x104896160 -[DVTModelGraphTransactionScope performTransaction:] + 48 24 DVTFoundation 0x1047a0b30 -[DVTModelObjectGraph performBlockCoalescingModelChanges:] + 136 25 IDEFoundation 0x10d510c80 -[IDEFileReference _invalidateStartingWith:changeBlock:] + 172 26 IDEFoundation 0x10d511c00 -[IDEFileReference discoveredFileDataType] + 300 27 IDEKit 0x1088cda84 -[IDEFileReference(IDEKitFileReferencePropertyAdditions) navigableItem_contentDocumentLocation] + 32 28 IDEKit 0x1089030c0 -[IDEKeyDrivenNavigableItem contentDocumentLocation] + 68 29 IDEKit 0x108a4a644 +[IDENavigableItem _navigableItemForNavigationFromNavigableItem:workspace:] + 80

My Xcode version is 16.4, I have added an old version simulator (iPhone 13 with iOS 17.2) to the simulator list, but I can't use it for debugging, and all on display are iPhone 16 with 18.6 (the latest iOS devices). The setting "Minimum Deployments" for my App is 16.6. In addition, when I downloaded an iOS 16.0 version simulator, Xcode automatically added all iPhone 15 models of the simulator, but I still can't use them. In short, I can only use the default iPhone 16 simulators. So, if I want to debug my App using iPhone 13 (iOS 17.2), what should I do? Thank you for your reply. :) Another small issue, my App's destination has been set to support only iPhone, why are those iPad simulators still appearing?

Xcode 26 beta 4 and iOS 26 beta 4 unable to build: facing issues in sideloading using Xcode Unable to find a DDI that can be used to enable DDI services on the device

dyld[2515]: Symbol not found: _NSUserActivityTypeBrowsingWeb Referenced from: /private/var/containers/Bundle/Application/94D2F46D-70B0-4770-9DC3-50953F03A984/jiaxiaozhijia-ios.app/jiaxiaozhijia-ios.debug.dylib Expected in: <3BCD2D21-B96D-3B5F-8C58-3AFFFD6466A4> /System/Library/Frameworks/CoreServices.framework/CoreServices Symbol not found: _NSUserActivityTypeBrowsingWeb Referenced from: /private/var/containers/Bundle/Application/94D2F46D-70B0-4770-9DC3-50953F03A984/jiaxiaozhijia-ios.app/jiaxiaozhijia-ios.debug.dylib Expected in: <3BCD2D21-B96D-3B5F-8C58-3AFFFD6466A4> /System/Library/Frameworks/CoreServices.framework/CoreServices dyld config: DYLD_LIBRARY_PATH=/usr/lib/system/introspection DYLD_INSERT_LIBRARIES=/usr/lib/libLogRedirect.dylib:/usr/lib/libBacktraceRecording.dylib:/usr/lib/libMainThreadChecker.dylib:/usr/lib/libRPAC.dylib:/usr/lib/libViewDebuggerSupport.dylib:/System/Library/PrivateFrameworks/GPUToolsCapture.framework/GPUToolsCapture 请告诉我们该怎么做？现在xcode26beta5版本是不是还没有修复？