Hello everyone, I'm developing a CarPlay app and am trying to test it with the dock on the right side of the screen, as is standard for right-hand drive vehicles like those in Japan. Currently, the CarPlay Simulator always displays the dock on the left, and I can't find an option to change its position. This is important for ensuring a proper user experience for my target market. Has anyone figured out how to configure the simulator for RHD layouts? Any guidance on how to move the dock to the right would be greatly appreciated. Thanks in advance for your help!

I am scheduling critical user notifications with a custom sound. This worked for years both on devices and in the simulator. Since Xcode 26 it crashes in simulator. Example let content = UNMutableNotificationContent() content.title = "Critical" content.body = "Example" content.sound = UNNotificationSound.criticalSoundNamed(UNNotificationSoundName("notification.aiff"), withAudioVolume: 0.5) content.interruptionLevel = .critical let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 10, repeats: false) let request = UNNotificationRequest(identifier: "exampleCriticalNotification", content: content, trigger: trigger) UNUserNotificationCenter.current().add(request) It seems that simpler variants such as just content.interuptionLevel = .critical or just content.sound = UNNotificationSound.defaultCritical also crash. I assume that critical notifications is a small niche use case but i still hope this gets fixed. This is filed as FB20272392 with a full crash log.

While preparing automated screenshots with Xcode UI tests for the iOS 26 release, I noticed that this simple line of code app.buttons["myTabItem"].tap() doesn't always work, both on iPhone and iPad Simulator. In fact, it rarely works. Even when repeating the same test, mostly it fails on that line, but a few times it works and I can see the tab item change in the simulator. My main view looks like this: TabView { MyTab1() .tag(tag1) .tabItem { Label("label1", systemImage: "image1") } MyTab2() .tag(tag2) .tabItem { Label("label2", systemImage: "image2") .accessibilityIdentifier("myTabItem") } The error I get is Failed to tap "myTabItem" Button: No matches found for Elements matching predicate '"myTabItem" IN identifiers' from input In the given list of buttons, I see the tab items with their labels, but none of them seem to have an identifier, while other buttons have the correct identifier. I wonder how this can only sometimes work. I tried isolating the issue by iteratively commenting out parts of the SwiftUI code, but unfortunately the behaviour seems erratic. When a change results in the issue not happening anymore, undoing the last X changes often causes the issue to stay away, even with configurations that previously had the issue. I've already spent almost a whole day trying to find the root cause, but with such apparently random behaviour it has proven impossible. Of course, I cannot reproduce the issue with a fresh test project, so the only way to reproduce it with 95% probability is running my original project. Has anyone had the same issue, or does anyone know how I could debug this to find out what causes my UI test to not be able to tap another tab item?

We have a simple workflow that just runs the Test action on my unit_tests scheme (see Xcode Cloud workflow configuration screenshot). The workflow is configured to use Xcode 16.4 (Latest Release), macOS Sequoia 15.6 (Latest Release), and iOS 18.0 simulators. Today, this workflow has been consistently running indefinitely. The Xcode cloud runner tries to launch the simulator to execute the tests, but it fails. See the error message in the screenshot from Xcode Cloud logs. Link to corresponding build is in my Feedback Assistant ticket. It continues to retry this operation for a very long time — I had one job that ran for over 90 minutes. Link to corresponding build also in that same Feedback Assistant ticket. Are Xcode Cloud runners perhaps currently undergoing maintenance? Or is something else going on. I would appreciate if Xcode Cloud usage from today could be refunded to my team’s account. Feedback Assistant ticket #FB20195292. Error message: MyApp encountered an error (Failed to prepare device 'iPhone 16' for impending launch. (Underlying Error: Unable to boot the Simulator. launchd failed to respond. (Underlying Error: Failed to start launchd_sim: could not bind to session, launchd_sim may have crashed or quit responding)))

I'm seeing fully reproducible issues with URLSession on iOS 18.4 RC Simulator running from Xcode 16.3 RC. URLSession seems to get into a broken state after a second app run. The following sample succeeds in fetching the JSON on first app run but when the app is closed and ran again it fails with one of these errors: Error: Error Domain=NSURLErrorDomain Code=-1005 "The network connection was lost." Error: Error Domain=NSURLErrorDomain Code=-1001 "The request timed out." I'm wondering if this something related to my OS setup or is this due to internal URLSession changes in iOS 18.4. Already submitted as FB17006003. Sample code attached below: import SwiftUI @main struct NetworkIssue18_4App: App { var body: some Scene { WindowGroup { ContentView() } } } struct ContentView: View { @State private var message: String = "" var body: some View { VStack { Text(message) Button("Try Again") { Task { await fetch() } } } .task { await fetch() } } private func fetch() async { message = "Loading..." let url = URL(string: "https://poetrydb.org/title/Ozymandias/lines.json")! let session = URLSession.shared do { let response = try await session.data(from: url) print("Response: \(response)") message = "Success, data length: \(response.0.count)" } catch { print("Error: \(error)") message = "Error: \(error.localizedDescription)" } } }

Around 8/23/25, I installed macOS 15.6.1 on my work Mac. After this I can no longer log the application I am working on into our backend servers. My work Mac is running Palo Alto Global Protect VPN software along with a bunch of associated security software to lock down my computer. I had no issues with connecting to our backend servers behind the firewall before the macOS update and nothing has changed in the source code related to this. When I send the username the network call just hangs and never times out. On the other hand, if I turn off the VPN and point to the production environment the call succeeds with no problems. Any Ideas?

Hi There We are looking to download the iOS 18.4 Simulator Runtime but due to restrictions on internet access in our company we are unable to use XCode to download the required file. Is there an alternative location we can browse to and download the iOS 18.4 Simulator Runtime file? We checked the downloads sections of the Apple Developer site but can only find 18.2 version of the iOS Simulator Runtime. Thanks

When trying to login with sandbox account in my simulator, nothing happens, it just become inactive for few seconds and then it become active again prompting that I can login, again and again.

Hello, I'm unable to run any test cases in Xcode 16 with the iOS 18 simulator. Steps to Reproduce: Create a new iOS project in Xcode 16 using the default iOS app template with the testing option checked. Run any test or UI test case by clicking the "Play" icon in the Test navigator. Xcode gets stuck at the "Testing" state indefinitely. Environment: macOS 15 beta 8 Xcode 16 beta 6 iOS 18 beta 7 simulator

When I try to install the iOS 26.0 Universal Simulator component with Xcode-beta 5 I get the following error: Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = "2025-08-11 14:39:06 +0000"; } -- Download failed. Domain: DVTDownloadableErrorDomain Code: 41 -- System Information macOS Version 15.6 (Build 24G84) Xcode 26.0 (24198.5) (Build 17A5295f) Timestamp: 2025-08-11T17:39:06+03:00

hello, I have an app with In-App purchase set up, it works fine in TestFlight on an iOS device but the download from the App Store gives me a transaction failed message. I tried to replicate in the simulator but from what I've read is that you can't do in-app purchase testing in the simulator. Perhaps I'm wrong here but I've tried multiple sandbox accounts, etc.. and still get an unusual "...password can't be reused..." error (pasted below) in the debug description. I'm curious if anyone else has dealt with this scenario and if so how did you go about researching/identifying the issue and/or resolving it. Partial error message: <SKPaymentQueue: 0x60000000e370>: Payment completed with error: Error Domain=ASDErrorDomain Code=530 "(null)" UserInfo={NSUnderlyingError=0x600000c74750 {Error Domain=AMSErrorDomain Code=100 "Authentication Failed The authentication failed." UserInfo={NSMultipleUnderlyingErrorsKey=( "Error Domain=AMSErrorDomain Code=2 "Password reuse not available for account The account state does not support password reuse." UserInfo={NSDebugDescription=Password reuse not available for account The account state does not support password reuse., AMSDescription=Password reuse not available for account, AMSFailureReason=The account state does not support password reuse.}"

If I long press on an element, the sidebar disappears and then a Done appears on the screen, but nothing else changes, so what are the Environments in Vision Pro's Simulator?

I want to open the control center in Vision Pro’s Xcode simulator. Can I open it? If I can, please tell me how to do it. Thank you.

Hello, It seems Xcode 26 beta is lagging the OS releases, which is fine. However, how does one install a Beta N + 1 or N + 2 SDK into the older Xcode beta? I'd like to use iOS 26 Beta 8 from the Xcode 26 Beta 6 install I have. I have tried Settings/Components and Devices & Simulators but nothing Beta 7 nor 8 shows up there. Thanks! -- Greg Bolsinga

Hello everyone, I am currently developing an iMessage Sticker Pack in Xcode 16.4 (Build 16F6) on macOS 15.6.1. The project builds without errors, but when running in the iOS 18.6 Simulator (iPhone 15 Pro, iPhone 16, etc.), the Sticker Pack does not show up inside Messages. Instead, the Simulator displays a white screen or the sticker drawer simply does not include my extension. In the logs I consistently see this error: FrontBoard[app] error: Application "de.eazyapp.smileystickerpack.StickerPackExtension" is unknown to FrontBoard Simulator device failed to launch de.eazyapp.smileystickerpack. Domain: FBSOpenApplicationServiceErrorDomain Code: 1 Failure Reason: The request was denied by service delegate (SBMainWorkspace) for reason: NotFound ("Application "de.eazyapp.smileystickerpack" is unknown to FrontBoard"). User Info: { BSErrorCodeDescription = RequestDenied; DVTErrorCreationDateKey = "2025-08-21 10:11:22 +0000"; FBSOpenApplicationRequestID = 0x6e63; IDERunOperationFailingWorker = IDELaunchiPhoneSimulatorLauncher; SimCallingSelector = "launchApplicationWithID:options:pid:error:"; } The request to open "de.eazyapp.smileystickerpack" failed. Domain: FBSOpenApplicationServiceErrorDomain Code: 1 Failure Reason: The request was denied by service delegate (SBMainWorkspace) for reason: NotFound ("Application "de.eazyapp.smileystickerpack" is unknown to FrontBoard"). User Info: { BSErrorCodeDescription = RequestDenied; FBSOpenApplicationRequestID = 0x6e63; } The operation couldn’t be completed. Application "de.eazyapp.smileystickerpack" is unknown to FrontBoard. Domain: FBSOpenApplicationErrorDomain Code: 4 Failure Reason: Application "de.eazyapp.smileystickerpack" is unknown to FrontBoard. User Info: { BSErrorCodeDescription = NotFound; } Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : { "device_identifier" = "A3986FB9-55ED-42CC-9336-F695C4CB9451"; "device_model" = "iPhone17,1"; "device_osBuild" = "18.6 (22G86)"; "device_platform" = "com.apple.platform.iphonesimulator"; "device_thinningType" = "iPhone17,1"; "dvt_coredevice_version" = "443.24"; "dvt_coresimulator_version" = "1010.15"; "dvt_mobiledevice_version" = "1784.140.4"; "launchSession_schemeCommand" = Run; "launchSession_state" = 1; "launchSession_targetArch" = arm64; "operation_duration_ms" = 23478; "operation_errorCode" = 1; "operation_errorDomain" = FBSOpenApplicationServiceErrorDomain; "operation_errorWorker" = IDELaunchiPhoneSimulatorLauncher; "operation_name" = IDERunOperationWorkerGroup; "param_debugger_attachToExtensions" = 0; "param_debugger_attachToXPC" = 1; "param_debugger_type" = 3; "param_destination_isProxy" = 0; "param_destination_platform" = "com.apple.platform.iphonesimulator"; "param_diag_113575882_enable" = 0; "param_diag_MainThreadChecker_stopOnIssue" = 0; "param_diag_MallocStackLogging_enableDuringAttach" = 0; "param_diag_MallocStackLogging_enableForXPC" = 1; "param_diag_allowLocationSimulation" = 1; "param_diag_checker_tpc_enable" = 1; "param_diag_gpu_frameCapture_enable" = 0; "param_diag_gpu_shaderValidation_enable" = 0; "param_diag_gpu_validation_enable" = 0; "param_diag_guardMalloc_enable" = 0; "param_diag_memoryGraphOnResourceException" = 0; "param_diag_mtc_enable" = 1; "param_diag_queueDebugging_enable" = 1; "param_diag_runtimeProfile_generate" = 0; "param_diag_sanitizer_asan_enable" = 0; "param_diag_sanitizer_tsan_enable" = 0; "param_diag_sanitizer_tsan_stopOnIssue" = 0; "param_diag_sanitizer_ubsan_enable" = 0; "param_diag_sanitizer_ubsan_stopOnIssue" = 0; "param_diag_showNonLocalizedStrings" = 0; "param_diag_viewDebugging_enabled" = 1; "param_diag_viewDebugging_insertDylibOnLaunch" = 1; "param_install_style" = 2; "param_launcher_UID" = 2; "param_launcher_allowDeviceSensorReplayData" = 0; "param_launcher_kind" = 0; "param_launcher_style" = 0; "param_launcher_substyle" = 0; "param_runnable_appExtensionHostRunMode" = 0; "param_runnable_productType" = "com.apple.product-type.application.messages"; "param_structuredConsoleMode" = 1; "param_testing_launchedForTesting" = 0; "param_testing_suppressSimulatorApp" = 0; "param_testing_usingCLI" = 0; "sdk_canonicalName" = "iphonesimulator18.5"; "sdk_osVersion" = "18.5"; "sdk_variant" = iphonesimulator; } System Information macOS Version 15.6.1 (Build 24G90) Xcode 16.4 (23792) (Build 16F6) Timestamp: 2025-08-21T12:11:22+02:00 Steps I already tried: Verified Bundle Identifiers (App + Extension) Confirmed Stickers.xcstickers is only in the Extension target, not the App target Checked that the Extension is properly listed under Embed Foundation Extensions Performed Clean Build Folder, Simulator reset, and reinstall Tried on a fresh Mac with clean Xcode install Reproduced consistently across multiple iOS 18 Simulators Steps to reproduce Create new iMessage Sticker Pack App in Xcode Add PNG/APNG stickers into Stickers.xcstickers Run on Simulator (iOS 18.6) Open Messages → App Drawer Sticker Pack is missing, extension does not load Environment Xcode 16.4 (16F6) macOS 15.6.1 (24G90) iOS Simulator 18.6 Project type: iMessage Sticker Pack Question Has anyone else experienced this issue with iMessage Sticker Packs on iOS 18 Simulators? Any guidance would be appreciated Thank you, Hakan

Hi, I’m trying to free up space on my computer and have uninstalled Xcode. However, I noticed that many large files remain on the filesystem even after uninstalling it. The largest remaining files (~33 GB) are iOS Simulator images located at: /System/Volumes/Data/Library/Developer/CoreSimulator/Volumes I attempted to delete them using root privileges, but it seems that these system files are mounted as read-only. I’m reaching out to ask for guidance to ensure that these files do not contain anything important for macOS, and that it’s safe to remove them before getting in recovery mode. Thank you very much for your advice!

Hello. I was working on a Unity game for iPhone, but Apple said that it is impossible to prohibit downloading to iPad. They tested it on iPad Air 5, and for some reason the game did not work correctly - nothing happened when launched, although everything was fine in the simulator and in the real iPhone. Please tell me what to do?

Hello. I was working on a Unity game for iPhone, but Apple said that it is impossible to prohibit downloading to iPad. They tested it on iPad Air 5, and for some reason the game did not work correctly - nothing happened when launched, although everything was fine in the iPad Air 5 simulator and in the real iPhone. Please tell me what to do?

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 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?