Some Macs recently received a macOS system update which disabled the simulator runtimes used by Xcode 15, including the simulators for iOS, tvOS, watchOS, and visionOS. If your Mac received this update, you will receive the following error message and will be unable to use the simulator: The com.apple.CoreSimulator.SimRuntime.iOS-17-2 simulator runtime is not available. Domain: com.apple.CoreSimulator.SimError Code: 401 Failure Reason: runtime profile not found using "System" match policy Recovery Suggestion: Download the com.apple.CoreSimulator.SimRuntime.iOS-17-2 simulator runtime from the Xcode To resume using the simulator, please reboot your Mac. After rebooting, check Xcode Preferences → Platforms to ensure that the simulator runtime you would like to use is still installed. If it is missing, use the Get button to download it again. The Xcode 15.3 Release Notes are also updated with this information.

Hi, I am trying to achieve biometric authentication in iOS 18 Simulator but getting the below error. The same things works in iOS 17.2 simulator in the same Xcode version that is Xcode 16 Beta 2. - some : Error Domain=com.apple.LocalAuthentication Code=-1000 "UI service connection invalidated." UserInfo={NSDebugDescription=UI service connection invalidated., NSLocalizedDescription=Authentication failure.}

Xcode simulator does not show on my MacBook pro M1. I go to Applications, Xcode, right click, contents, Developer, Applications, and then double click on Simulator. It opens the app, it appears in the dock as open, but it does not show the phone I want to.

I recently ran out of disk space and discovered that my System Data was consuming 866 GB of storage. After investigating, I found multiple directories named "Dead" nested within my developer data, consuming nearly 600 GB of storage. An example path is: /Users//Library/Developer/CoreSimulator/Devices//data/Library/Caches/com.apple.containermanagerd/Dead These directories contained multiple directories titled "temp.". Rebooting the computer did not empty these "Dead" directories; I had to manually delete them. What is the expected lifespan of the temporary directories stored in the "Dead" directory?

Hi, we've been developing an iOS game using OpenGL ES, trying running compatible iOS app on Vision Pro Simulator on M1 Mac, but we met a strange EXC_BAD_ACCESS crash in glDrawElements(), while the app run normally on ios or ipad simulators with the same developing environment. The stack like following: Our Mac is a Mac Studio(2022) with Apple M1 Max and MacOS 14.1.2. Xcode: Version 15.3 (15E204a) Simulator OS: Vision OS 1.1

I am using an iPhone 15 Pro as my iOS simulator, and the IDE that I am using is Android Studio. This issue is happening on a 2019 MacBook Pro 16 inch, running the latest version of Xcode, and running macOS Sonoma 14.5. I've never had this issue on other, older/newer Macs with Android Studio. Everytime I interact with the simulator, it shows green bars and distorts the view quite a bit (See screenshots below). I tried all that I could think of, including, but not limited to: Restarting simulator, restarting MacBook, restarting Android Studio, using different iOS simulators (same problem), and so forth. I have not found any such occurrence to anyone else while looking online for answers. One interesting thing that I noticed is that for Xcode projects, the simulator runs perfectly, but when I use Android Studio, the simulator doesn't work properly at all. Any solutions to this? All input is greatly appreciated. P.S.: I have tested the app on an actual iOS device, and it works perfectly. Here are some screenshots. This show what happens when you scroll or interact with the app: (Each screenshot is a different interaction)

I have been trying to get a preview to load for hours and it won't get passed the 'Preparing iPhone Simulator for Previews' and it has been days and nothing works. I've tried almost everything. I really need this to work, but it hasn't worked for weeks at this point.

Hi, I'm having a small App in the AppleTV-Simulator which is supposed to use the Siri-Remotes Swipe-Gesture. It works perfect on the real device but on the simulator the Swipe-Gesture is not recognized in the App but it works on the Start-Screen of the Simulator using the simulated Siri-Remote app. Here is the code which sets up the xAxis ans yAxis value change handlers: #if targetEnvironment(simulator) // Simulator let siriRemote = GCController.controllers().filter { controller in if controller.vendorName == "Gamepad" { return true } else { return false } } let sController = siriRemote.first! let inputProfile = sController.physicalInputProfile let dPad = inputProfile.dpads["Direction Pad"] self.dPad = dPad self.dPad!.xAxis.valueChangedHandler = self.directionPadXAxisValueChangeHandler self.dPad!.yAxis.valueChangedHandler = self.directionPadYAxisValueChangeHandler } #else // Device if let _ = ( notification.object as? GCController)?.microGamepad { let microProfileController = notification.object as! GCController self.microGamePad = microProfileController.microGamepad self.dPad = self.microGamePad!.dpad self.dPad!.xAxis.valueChangedHandler = self.directionPadXAxisValueChangeHandler self.dPad!.yAxis.valueChangedHandler = self.directionPadYAxisValueChangeHandler } #endif Any help is greatly appreciated. Cheers, Frank

Hello everyone, I'm currently developing an application that involves network communication on an Apple Watch. I'm using Apple's network framework for communication and for validation purpose I need to establish communication between an Apple Watch simulator and an external command-line tool (nc). To send the connection requests, I require the IP address of the Apple Watch simulator. I've been unable to locate the IP address of the Apple Watch simulator after searching is settings everywhere. This IP address is required for setting up network requests and ensuring effective testing and integration of Apple's network framework. Could someone please provide guidance on how to obtain the IP address of the Apple Watch simulator? Specifically, I need to know how to retrieve this IP address so that I can configure my external command-line application (nc) to send connection requests to the simulator. Thank you for your assistance and insights! Regards, Harshal.

import AVFoundation Button { let utterance = AVSpeechUtterance(string: "Hello world") utterance.voice = AVSpeechSynthesisVoice(language: "en-GB") utterance.rate = 1 let synthesizer = AVSpeechSynthesizer() synthesizer.speak(utterance) } label: { Text("hello") } i omitted some code but this is the core part. When i run this on apple watch se 2 simulator (watch os 10.5) nothing happens and gives the error Query for com.apple.MobileAsset.VoiceServicesVocalizerVoice failed: 2 Unable to list voice folder Query for com.apple.MobileAsset.VoiceServices.GryphonVoice failed: 2 Unable to list voice folder Query for com.apple.MobileAsset.VoiceServices.CustomVoice failed: 2 Unable to list voice folder Query for com.apple.MobileAsset.VoiceServices.GryphonVoice failed: 2 Unable to list voice folder

As of now, there are some emulators available for the Apple Silicon Mac, such as Parallels Desktop and VMware Fusion. These emulators support virtualization on Apple Silicon and offer some support for ARM architecture. However, not all mobile applications or games have been adapted for Apple Silicon yet, so are there any emulators designed for moblie games fully adapted to Apple Silicon?

I am getting error after XCode build completes in the simulator. Not able to install app in any simulator. Getting a popup with title LLDB provided no error string. and on tapping more details getting below error Domain: IDEDebugSessionErrorDomain Code: 3 Failure Reason: LLDB provided no error string. User Info: { DVTErrorCreationDateKey = "2024-06-24 09:28:54 +0000"; DVTRadarComponentKey = 855031; IDERunOperationFailingWorker = DBGLLDBLauncher; RawUnderlyingErrorMessage = "LLDB provided no error string."; } -- Could not launch <AppName> Domain: IDEDebugSessionErrorDomain Code: 3 Failure Reason: LLDB provided no error string. User Info: { DVTRadarComponentKey = 855031; IDERunOperationFailingWorker = DBGLLDBLauncher; RawUnderlyingErrorMessage = "LLDB provided no error string."; } -- Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : { "device_model" = "iPhone14,6"; "device_osBuild" = "17.5 (21F79)"; "device_platform" = "com.apple.platform.iphonesimulator"; "dvt_coredevice_version" = "355.28"; "dvt_mobiledevice_version" = "1643.100.60"; "launchSession_schemeCommand" = Run; "launchSession_state" = 1; "launchSession_targetArch" = arm64; "operation_duration_ms" = 7177; "operation_errorCode" = 3; "operation_errorDomain" = IDEDebugSessionErrorDomain; "operation_errorWorker" = DBGLLDBLauncher; "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_MainThreadChecker_stopOnIssue" = 0; "param_diag_MallocStackLogging_enableDuringAttach" = 0; "param_diag_MallocStackLogging_enableForXPC" = 1; "param_diag_allowLocationSimulation" = 1; "param_diag_checker_tpc_enable" = 0; "param_diag_gpu_frameCapture_enable" = 0; "param_diag_gpu_shaderValidation_enable" = 0; "param_diag_gpu_validation_enable" = 0; "param_diag_memoryGraphOnResourceException" = 0; "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_stopOnIssue" = 0; "param_diag_showNonLocalizedStrings" = 0; "param_diag_viewDebugging_enabled" = 1; "param_diag_viewDebugging_insertDylibOnLaunch" = 1; "param_install_style" = 0; "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"; "param_structuredConsoleMode" = 1; "param_testing_launchedForTesting" = 0; "param_testing_suppressSimulatorApp" = 0; "param_testing_usingCLI" = 0; "sdk_canonicalName" = "iphonesimulator17.5"; "sdk_osVersion" = "17.5"; "sdk_variant" = iphonesimulator; } -- System Information macOS Version 14.4.1 (Build 23E224) Xcode 15.4 (22622) (Build 15F31d) Timestamp: 2024-06-24T14:58:54+05:30

Recently I have updated the Xcode version as 15.4 and run my project in the simulator is not working in the 17.5 version and also some time this issue - Building for 'iOS-simulator', but linking in object file resolved and check not yet working the simulator. give any suggestion.Thanks!

My App work well in 17.5 but Reviewer use 17.5.1 & not works in 17.5.1. I'm trying to download 17.5.1 but xcode ios latest version is 17.5. i try to download dmg file but not found 17.5.1

Related to https://developer.apple.com/forums/thread/756767 and https://feedbackassistant.apple.com/feedback/13893850 which was dismissed. Hi, I'm trying to install multiple Xcode versions with simulators on a single mac The problem is: xcrun simctl or any other simulator related process would hang several minutes after installing Xcode 16 beta additional components. If I delete /Library/PrivateFrameworks dir and reinstall additional components of Xcode 15.4, xcrun works fine without any hang. When hanging on CLI, simdiskimaged process skyrockets in CPU usage %, so that's why I assume CoreSimulator Framework is the main source of hang. Is there any way to use additional components(technically CoreSimulator Framework) of Xcode 15.4 on Xcode 16 beta? ※Plus, as I described in related thread, the hang disappears if I run Simulator.app on GUI. I already tried xattr -r -d com.apple.quarantine /Library/PrivateFrameworks or Xcode 16 beta with no use. Is there any command I can open Simulator.app headlessly on CLI?

I am writing this Web Extension for Safari. It is designed to run on both macOS and iOS. The extension-specific javascript/css/etc files are shared between the platforms. What I observe is that the extension is running fine on macOS. It also runs fine on the iOS Simulator. However, on my device, just nothing happens when activating the extension. No errors are output to the console either. I found it out the hard way, when I already released the extension in the AppStore, and installed it on a friend's iPhone. Does anyone have a clue where I even could start debugging? Or better: maybe there is just a simple checkbox that that I should (un)check?

I installed Xcode 16 beta on Sonoma 14.5 and tried to run my app on the simulator, but it's practically impossible to use. It's extremely slow and unresponsive. After doing some research, I noticed that launching any application causes the simulator to flood the system with logs. This triggers the diagnosticd process, which increases memory and CPU usage, worsening over time. The memory usage peaked at 10GB before I decided to close the simulator. Has anyone else experienced this issue? Is there any solution for this?

Hello, For some reason since yesterday whenever I run an build and run an app on my Mac I get this issue: Logging Error: Failed to initialize logging system. Log messages may be missing. If this issue persists, try setting IDEPreferLogStreaming=YES in the active scheme actions environment variables. I tried to create an iOS app and this is the issue I get in the console when running it on simulator. This issue also appears on old projects I have. Setting IDEPreferLogStreaming=YES in environment variables does fix the issue and the error no longer appears but why is it appearing in the first place and how can I get rid of it? Here is a screenshot: Thanks in advance for your help.

Hello, The issues over new Xcode major version beta always drive me crazy around this time of the year. This year we are trying to install both Xcode 15.x & 16 beta on the same mac with Sonoma 14.5, along with all supported iOS/tvOS/watchOS/xrOS simulators available including beta via dmgs distributed on Apple Developer Downloads. After setups, xcrun simctl related commands or xcodebuild (actually carthage bootstrap) commands hang much longer than usual. Happens both on M1 mac mini 16GB ram and Intel i7 mac mini 2018 32GB ram. Rebooting mac, killing processes like CoreSimulatorService, Xcode-related ones or simdiskimaged seemed never helpful. We found that simdiskimaged process tops over 440% of CPU% on Activity Monitor when hanging. It takes over 2m 30s to execute only simple command like xcrun simctl list, whether or not using Xcode 16 beta. (same thing happens on DEVELOPER_DIR=Xcode 15.4 too) What is weird is: opening Xcode on GUI also hangs (Not Responding) but if I force quit it and re-execute, this symptom would be gone after opening Simulator.app on GUI. Anyone who suffered from this kind of behavior? as a iOS CI maintainer? Should I file FBA which will be checked as 'normal behavior'?

Hey folks, I have a legacy game that is running OpenGL ES - and it no longer works on the simulators that are running Apple Silicon, ie iPhone 15 Pro, or the 13" iPads. And yes, i'm also running on Apple Silicon (M1 Max). The apps work fine on the actual devices, but the simulator crashes on any glDrawElements with a stack that looks like the following: I have not yet seen an announcement about this not working but i've seen mention in other apps of stopping to support GL (https://github.com/maplibre/maplibre-native/issues/2351) Can anyone shed some light? I'm obviously going to try to fix it, or find a recent sample app from which to start to see what might be up. Or move to metal, but i hadn't bargained for that level of effort atm ;) Any suggestions appreciated!

getting this error in the apple vision pro