https://developer.apple.com/forums/topics/developer-tools-and-services Dive into the vast array of tools, services, and support available to developers. https://developer.apple.com/forums/thread/791268 At WWDC25 we launched a new type of Lab event for the developer community - Group Labs. A Group Lab is a panel Q&A designed for a large audience of developers. Group Labs are a unique opportunity for the community to submit questions directly to a panel of Apple engineers and designers. Here are the highlights from the WWDC25 Group Lab for Developer Tools. Will my project codebase be used for training when I use Xcode's intelligent assistant powered by cloud-based models? When using ChatGPT without logging in, your data will not be used to improve any models. If you log in to a ChatGPT acc... Tue, 01 Jul 2025 23:55:58 GMT https://developer.apple.com/forums/thread/805625 I'm seeing a lot of unexpected CPU usage when running the iOS 26.1 simulator. Looks like a "MercuryPosterExtension" is crashing over and over, which then causes the "ReportCrash" process to run, presumably to create the crash report. Doesn't happen on device, nor on iOS 26.0 simulator. I suspect MercuryPoster is related to wallpaper. I also don't see any wallpaper background in my simulator. Few lines from the stack trace: Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libxpc.dylib 0x18011defc _xpc_api_misuse + 88 1 libxpc.dylib ... Thu, 30 Oct 2025 00:26:35 GMT jhowlin https://developer.apple.com/forums/thread/806218 Hey! We're implementing In-App Purchase Subscriptions and we were able to receive "App Store Server Notifications" on our "Sandbox Server URL". But the last event we received 22 hours ago. We are able to verify transactions and finish them, but receive no webhooks. We changed nothing on our server or its configurations but the notifications stoped to come. We consulted the API (https://api.storekit-sandbox.itunes.apple.com/inApps/v1/notifications/history) and it says the same as we see - the last event was 22hrs ago. I checked all the advices from here as well (https://developer.apple.com/foru... Tue, 04 Nov 2025 15:58:14 GMT konstantin-mc https://developer.apple.com/forums/thread/806261 I am a new apple developer and I don’t really know what this is about besides getting early update. I know that it has something to do with coding but I’m on a phone and I don’t think I can do that. Anyway I would like to know what this is really about. Thank you in advance. Tue, 04 Nov 2025 20:07:55 GMT NatureFreak https://developer.apple.com/forums/thread/774968 Hello, When trying to download the latest version of iOS simulator on xCode i get this error: Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = "2025-02-21 09:05:50 +0000"; } Download failed. Domain: DVTDownloadableErrorDomain Code: 41 Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({ RequestedBuild = 22D8075; }) Domain: DVTDownloadsUtilitiesErrorDomain Code: -1 Download failed due to a bad URL. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime) Domain: com.apple.MobileAssetErro... Fri, 21 Feb 2025 09:09:59 GMT valentincprz https://developer.apple.com/forums/thread/806223 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. Tue, 04 Nov 2025 16:55:03 GMT dysonapps https://developer.apple.com/forums/thread/806298 Hello, I wanted to get the lat & lon where map is clicked/tapped but Gives Error on Tap onTapGesture "<0x10bf0....> Gesture: System gesture gate timed out" 2 out of 10 clicks it works , 8 times gives error Please help MapReader { reader in Map(position: $MapKit_Position_default , scope: mapScope) { //... } .onTapGesture(perform: { screenCoord in let pinLocation = reader.convert(screenCoord, from: .local) print("[OnTap]:\(pinLocation)") isLocationSetMarkerAct... Wed, 05 Nov 2025 01:41:53 GMT stellus https://developer.apple.com/forums/thread/806128 I am trying to perform swiftUI instrumentation on my ios app. whenever i hit the rocord button, the app launches on target device and closes with the error: Failed to start the recording: Failed starting ktrace session. How do i resolve this please? Tue, 04 Nov 2025 08:59:22 GMT Kwarteng https://developer.apple.com/forums/thread/806285 I’m developing an app that uses Family Controls to block other apps. I’ve already received approval from Apple for the entitlement, and everything works perfectly when I run the app from Xcode on a physical device. However, when I upload the same build to TestFlight, the app installs and runs, but the Family Controls functionality doesn’t work — it seems like the entitlement isn’t being applied in the TestFlight version. So I’d like to ask: 👉 Do Family Controls entitlements work automatically on TestFlight builds, or is there any additional step required to enable them? Tue, 04 Nov 2025 22:12:40 GMT Horaciomota93 https://developer.apple.com/forums/thread/792657 Hi everyone, I’m posting this to ask for advice and see if anyone has experienced a similar issue with the Apple Developer Program subscription. On July 9th, 2025, I registered for the Apple Developer Program via the Apple Developer app on my iPhone using my main iCloud account (Apple ID). The expected annual fee was 2,299,000 VND (~$99). However, I just checked my billing history and saw that I was charged twice for the same subscription, both under the same Apple ID / iCloud account, on the same day. Key Details: I only enrolled once. Both charges are labeled “Apple Developer Program”, exact... Fri, 11 Jul 2025 09:27:21 GMT sonnguyen98 https://developer.apple.com/forums/thread/806084 My main app target builds fine and can run on Simulator without issue. Whenever I try to run a Preview, I get this error: == DATE: Monday, November 3, 2025 at 2:52:23 PM Pacific Standard Time 2025-11-03T22:52:23Z == PREVIEW UPDATE ERROR: SimulatorShutdownUnexpectedlyError: Simulator was shutdown during an update Simulator [F85A5AF1-F52C-4662-AFCD-762F87AF537D] failed to boot and may have crashed. This seems like it started happening after updating to MacOS 26. I've tried reinstalling all Simulators, tried on Xcode 26, deleted derived data, restarted Xcode and my ... Mon, 03 Nov 2025 22:55:06 GMT elliotfiske https://developer.apple.com/forums/thread/801751 Hello, I am currently working on personal project based on Matter. I need to create a Basic Video Player as specified in Matter's standard embedding the Media Playback Cluster. I went through the reading of how Apple now supports Matter as a standard : linkText My understanding of the following schematic, is alongside : HomeKit Accessory Protocol (HAP) Framework API Related HAP accessories underneath the homeKit framework. Developpers also find under the Homekit framework : CHIP (Connected Home IP) Framework API Related Matter accessories this time Both types of accessories/device... Wed, 24 Sep 2025 08:55:06 GMT storigin https://developer.apple.com/forums/thread/806173 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 d... Tue, 04 Nov 2025 12:26:02 GMT X_Sheep https://developer.apple.com/forums/thread/806225 My MBP M1 Pro gets really hot. iOS 26.1 Simulator in Xcode 26.1 makes ReportCrash process run at 60-160% of CPU shows Activity Monitor. MacOS 26.1. I've reported this via Feedback Assistant: FB20918609. Is there a way to quit this process permanently? When I Force Quit this it opens again immediately. Only way to stop it is to quit Simulator. But then again, I need to use the Simulator. Tue, 04 Nov 2025 18:54:56 GMT mallow https://developer.apple.com/forums/thread/806232 I've had a Unreal Engine project that uses libwebsocket to make a websocket connection with SSL to a server. Recently I made a build using Unreal Engine 5.4.4 on MacOS Sequoia 15.5 and XCode 16.4 and for some reason the websocket connection now fails because it can't get the local issuer certificate. It fails to access the root certificate store on my device (Even though, running the project in the Unreal Editor works fine, it's only when making a packaged build with XCode that it breaks) I am not sure why this is suddenly happening now. If I run it in the Unreal editor on my macOS it works fi... Tue, 04 Nov 2025 17:36:43 GMT BitNick https://developer.apple.com/forums/thread/806130 I’m testing auto-renewable subscription purchases in the sandbox environment. When I buy a subscription package using a sandbox test user, I don’t receive any App Store Server Notifications from the sandbox. However, when I use the “Request Test Notification” option in App Store Connect, the notification is received successfully. My sandbox server notification URL is configured correctly and publicly accessible. I also call finishTransaction() after purchase, and the receipt is verified successfully with the sandbox verification endpoint. To further debug, I used the getNotificationHistory API... Tue, 04 Nov 2025 09:18:44 GMT UsamaSaleem01 https://developer.apple.com/forums/thread/805165 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... Sun, 26 Oct 2025 07:06:05 GMT Nootfly https://developer.apple.com/forums/thread/806210 Is the Notary service unavailable again? The system-status page shows it as being green but I am back to receiving the same error as previously which fixed itself once the notary service went green again and I am unable to notarize and staple my Distribution PKG. Tue, 04 Nov 2025 16:32:14 GMT pchihak https://developer.apple.com/forums/thread/806212 ChatGPT in Xcode 26.1 is super slow for me, anyone else? The response returns quickly but the preview window takes a few seconds per line. What it used to do in a few seconds on 26.0 now takes tens of minutes. Anyone else running into this and have suggestions? I'm using the minimal setting on a fast internet connection. M2 Pro MBP, macOS 26.1. Tue, 04 Nov 2025 16:17:56 GMT dysonapps https://developer.apple.com/forums/thread/801326 I just discovered xcresulttool - provided with the Xcode Command Line Tools. It does an amazing job generating a JSON report of warnings/failures. The tool requires a xcresult file path - my issue is that xcodebuild build does not produce an xcresult file so I can't find a way to generate a similar report for that action. My use case is simple - in my CI job, I want to report back on specific failures during builds and tests. I run xcodebuild build-for-testing and then later xcodebuild test-without-building. If there is a failure during the test phase, I can easily parse the issues from the JS... Fri, 19 Sep 2025 16:40:45 GMT richard_janita https://developer.apple.com/forums/thread/806222 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. Tue, 04 Nov 2025 16:50:03 GMT premak