I installed xcode 16 and both Predictive Code Completion Model and iOS 18.0 Simulator Failed Download. I can live without the code completion, but I can not get any Simulator to install. I clicked of the info button and it shows the following: Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = "2024-09-30 15:57:24 +0000"; } Download failed. Domain: DVTDownloadableErrorDomain Code: 41 Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({ RequestedBuild = 22A3351; }) Domain: DVTDownloadsUtilitiesErrorDomain Code: -1 Download failed as the server said authentication failed. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime) Domain: com.apple.MobileAssetError.Download Code: 41 User Info: { checkServer = 1; } System Information macOS Version 15.0 (Build 24A335) Xcode 16.0 (23051) (Build 16A242d) Timestamp: 2024-09-30T10:57:24-05:00

I'm trying to run(debug) an Xcode watch app project on my watch. My phone is connected to my computer via USB cable, my watch is paired to my phone. When I open Xcode and then open "Devices and simulators", I can see my phone properly connected. But these errors show up for my watch........ Apple Watch may need to be unlocked to recover from previously reported preparation errors Ensure the device is unlocked and associated with the same local area network as this Mac. A connection to this device could not be established. Timed out while attempting to establish tunnel using negotiated network parameters. I have booted computer, phone and watch. I have turned wifi off and on, on all 3 devices. I have turned developer mode on the watch off and then back on again. Anyone have any ideas how to fix this?

Hello, I've noticed the prices of my products in my Xcode synced StoreKit configuration are not updated when I change the price in App Store Connect. I tried to manually sync the file, to remove and add it again to my project but old initial prices are still used. In the screenshot below, the price is currently $2.99 but the file still uses the initial price of $1.99. It makes testing a little bit painful because I'm never sure which product is being shown. Is this a bug? Is there a way to get the live production App Store prices be used instead of the starting prices? I filed a feedback for this: FB17798486 Regards, Axel

I am getting this error in a couple of places in my code with Task closure after setting Swift 6 as Language version in XCode. Passing closure as a 'sending' parameter risks causing data races between code in the current task and concurrent execution of the closure Below is minimally reproducible sample code. import Foundation final class Recorder { var writer = Writer() func startRecording() { Task { await writer.startRecording() print("started recording") } } func stopRecording() { Task { await writer.stopRecording() print("stopped recording") } } } actor Writer { var isRecording = false func startRecording() { isRecording = true } func stopRecording() { isRecording = false } } While making the class Recorder as Actor would fix the problem, I fear I will have to make too many classes as Actors in the class and in my scenario, there could be performance implications where real time audio and video frames are being processed. Further, I don't see any race condition in the code above. Does the error talk about possible race conditions that could arise if I were to call other functions on the self in future, or the current code itself is not safe?

Hi everyone, I recently upgraded my Xcode to version 16, and since then, I’ve encountered some issues with Visual Studio 2022 for Mac. The iOS simulators have disappeared, except for the generic simulator. When I connect my iPhone via USB, Visual Studio recognizes it, but when I attempt to run my project in debug mode, I receive a status message saying "waiting for debugger to connect to iPhone on port 10000 via USB." After a few minutes, this process fails. Additionally, when I try to run the project in release mode, I encounter the following error: dlopen(/Applications/Xcode.app/Contents/SharedFrameworks/IDEDistribution.framework/Versions/A/IDEDistribution, 0x0001): Library not loaded: @rpath/AppThinning.framework/Versions/A/AppThinning Referenced from: <33FF2F3B-A96F-37B4-BA4E-887BD882BF9D> /Applications/Xcode.app/Contents/SharedFrameworks/IDEDistribution.framework/Versions/A/IDEDistribution Reason: tried: '/Library/Frameworks/Xamarin.iOS.framework/Versions/16.4.0.23/lib/mlaunch/mlaunch.app/Contents/Frameworks/AppThinning.framework/Versions/A/AppThinning' (no such file), '/Applications/Xcode.app/Contents/SharedFrameworks/IDEDistribution.framework/Versions/A/Frameworks/AppThinning.framework/Versions/A/AppThinning' (no such file), '/Library/Frameworks/Xamarin.iOS.framework/Versions/16.4.0.23/lib/mlaunch/mlaunch.app/Contents/Frameworks/AppThinning.framework/Versions/A/AppThinning' (no such file), '/Applications/Xcode.app/Contents/SharedFrameworks/IDEDistribution.framework/Versions/A/Frameworks/AppThinning.framework/Versions/A/AppThinning' (no such file), '/Library/Frameworks/Xamarin.iOS.framework/Versions/16.4.0.23/lib/mlaunch/mlaunch.app/Contents/MonoBundle/AppThinning.framework/Versions/A/AppThinning' (no such file) I suspect that the new version of Xcode may not be fully compatible with Visual Studio 2022. Unfortunately, I cannot roll back to an older version of Xcode because I have updated my macOS to Sequoia (15.0.1), which appears to be incompatible with previous Xcode versions. It is quite frustrating as I can't debug my projects and my works are stalled. Does anyone have any suggestions or solutions to this problem? Thank you in advance for your assistance!

until previous version of the Xcode, I can see the backtrace of view by edit scheme -> Diagnostics -> Logging -> check Malloc Stack and select All Allocation and Free History` but the option just gone in Xcode 16.

When referencing WebKit’s function callAsyncJavaScript, any iOS app crashes immediately on startup when running in simulator. On device, it does not crash. The error message is: dyld[9892]: Symbol not found: _$sSo9WKWebViewC6WebKitE19callAsyncJavaScript_9arguments2inAF17completionHandlerySS_SDySSypGSo11WKFrameInfoCSgSo14WKContentWorldCys6ResultOyyps5Error_pGcSgtF Furthermore, this only happens for some simulators. With Xcode 16.3, it’s simulators 18.0 and prior. With Xcode 16.4 RC1 it includes simulators iOS 18.5 and 18.4 but works correctly on earlier versions of simulator. The reproduction path is easy. Example file attached. This used to work about 3 weeks or a month ago, which is perplexing. As a workaround I replaced the function with evaluateJavaScript which does not crash, but that is not the desired method to use for us. The attached file can reproduce it easily - just refernece this view from the default ContentView in a new project. TestWebView.swift

everything works fine in Xcode15, but in Xcode16 it break down. when I add breakpoint, I start po variable , the lldb shows error: type for self cannot be reconstructed: type for typename "$s8XYRouter8RegistryOXMtD" was not found (cached) error: Couldn't realize Swift AST type of self. Hint: using `v` to directly inspect variables and fields may still work. how can I fix the issues!!!. it really mattttttes, and it cause cant developing as normally. pls, save the child.

Hello everyone, We are seeing some warnings in Xcode 16 when I archive my iOS app for distribution. During the upload phase (either via Xcode Organizer ), I get an error like: WARNING: Upload Symbols Failed The archive did not include a dSYM for MyFramework.framework with the UUIDs: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX Ensure that the archive’s dSYM folder includes a DWARF file for MyFramework.framework with the expected UUIDs. Question: How can these warnings be fixed? Is this warning safe to ignore if I know the vendor does not supply a dSYM for their framework? If I do need a proper dSYM for full symbolication, how should I request it from the vendor or generate it myself from an XCFramework?

Xcode Preview is not working. Successed to build Preview but error message displays like below: I think it's maybe related with loader path followed by error details below. I created xcproj file using tuist 4.19.0. How can I fix this issue? Error Details

Whenever I try to use SwiftUI previews, the preview fails with a CouldNotLoadInputObjectFile error like this: == PREVIEW UPDATE ERROR: FailedToLaunchAppError: Failed to launch com.my-company.Test | ================================== | | [Remote] CouldNotLoadInputObjectFile: Could not load object file during preview: /Users/me/Library/Developer/Xcode/DerivedData/Test-dzmdthicvcbuwkawncuacsomcdcd/Build/Intermediates.noindex/Test.build/Debug-iphonesimulator/Test.build/Objects-normal/arm64/TestApp.o | | | | path: /Users/me/Library/Developer/Xcode/DerivedData/Test-dzmdthicvcbuwkawncuacsomcdcd/Build/Intermediates.noindex/Test.build/Debug-iphonesimulator/Test.build/Objects-normal/arm64/TestApp.o | | | | ================================== | | | [Remote] XOJITError | | | | | | XOJITError: '/Users/me/Library/Developer/Xcode/DerivedData/Test-dzmdthicvcbuwkawncuacsomcdcd/Build/Intermediates.noindex/Test.build/Debug-iphonesimulator/Test.build/Objects-normal/arm64/TestApp.o': No such file or directory It appears that the preview process cannot find the compiled .o files. However, when I check in Finder, the files do exist and normally running the app works fine. It is noteworthy that this is independent of the XCode project or view I try to preview. It is a global issue on my system. Previews not even work when I create a blank new SwiftUI project in XCode. I tried deleting all caches, derived data, preview caches etc. But without any effect. I have this in XCode 16.3 as well as in 16.4 RC. On macOS Sequoia 15.4.1 on a MacBook Air M4. Does anybody have an idea what might be causing this?

iOS 18.5 and macOS 15.5 have already shipped, but the final release of Xcode 16.4 is nowhere to be found at developer.apple.com Manually building a link based upon the link for version 16.3 results in a 403 error: https://download.developer.apple.com/Developer_Tools/Xcode_16.4/Xcode_16.4.xip

I am facing a recurring issue with Xcode iOS simulator. I want to preview a SwiftUI for iOS in Xcode, but the Simulator app fails to boot up. I receive the follow error in Xcode: Cannot Preview in this file. Simulator was shutdown during an update. I have tried the following: Deleting Xcode cache Reinstalling iOS Simulator runtimes Completely uninstalling Xcode and deleting all developer data, then reinstalling None of the above steps fix the problem. The only fix I have found is to completely reinstall MacOS 15.4.1. THIS IS TERRIBLE! I have already reinstalled MacOS 15.4.1 once to fix the issue, and I don't want to do it again. If there is another solution, please help me find it! Thank you!!

The app stops on the breakpoint when "All Runtime Issues" is added. If I disable the breakpoint, the app runs normally. Is there a new project setting to avoid this breakpoint from being set. It does not appear to be a valid error. I am running Xcode 16.2. I edited the "Type" field in the breakpoint box. This occurs with the "System Frameworks" option only.

We are seeing crashes after upgrading to xcode16.x ( tested with 16.1 , 16.2 and 16.3) and ios 18.1, 18.2, 18.3.1 and 18.4 . when tests are running simulator is crashing with mulitple reasons. CoreSimulatorService[85444] <Error>: Failed to get a device identity for simulator device BFAD684E-A48A-4170-80E1-8FBC04744E79, error: Error Domain=com.apple.MobileActivation.ErrorDomain Code=-1 "Failed to create BAA info." UserInfo={NSLocalizedDescription=Failed to create BAA info., NSUnderlyingError=0x600002072a60 {Error Domain=com.apple.MobileActivation.ErrorDomain Code=-1 "Failed to query baa info." UserInfo={NSLocalizedDescription=Failed to query baa info., NSUnderlyingError=0x600002073390 {Error Domain=com.apple.MobileActivation.ErrorDomain Code=-1 "Failed to load cryptex1 manifest." UserInfo={NSLocalizedDescription=Failed to load cryptex1 manifest., NSUnderlyingError=0x600002071110 {Error Domain=com.apple.MobileActivation.ErrorDomain Code=-1 "Failed to load firmware data from /System/Volumes/iSCPreboot/F743DA4B-92E7-4E92-ACD2-40775DF4B5A2/cryptex1/current/apticket.j274ap.1A256C21D3001E.im4m." UserInfo=0x600003b47bc0 (not displayed)}}}}}} sometimes crashing with [02:47:24]: ▸ Tests_iOS-Runner encountered an error (Failed to prepare device 'Clone 2 of iPhone 16 Pro' 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))) sometimes with [18:44:47]: ▸ 2025-05-08 18:44:47.019 xcodebuild[75752:6252304] [MT] IDELaunchReport: a616bd895a3ee240:a616bd895a3eec00:Install Actions Finished with error: Unable to boot the Simulator. [18:44:47]: ▸ Domain: NSPOSIXErrorDomain [18:44:47]: ▸ Code: 60 [18:44:47]: ▸ Failure Reason: launchd failed to respond. [18:44:47]: ▸ User Info: { [18:44:47]: ▸ Session = "com.apple.CoreSimulator.SimDevice.BD4A5DAB-3317-44D1-AFD1-C6EED090BB20"; [18:44:47]: ▸ } [18:44:47]: ▸ -- [18:44:47]: ▸ Failed to start launchd_sim: could not bind to session, launchd_sim may have crashed or quit responding [18:44:47]: ▸ Domain: com.apple.SimLaunchHostService.RequestError [18:44:47]: ▸ Code: 4 [18:44:47]: ▸ -- [18:44:47]: ▸ 2025-05-08 18:44:47.019 xcodebuild[75752:6252304] [MT] IDELaunchReport: a616bd895a3ee240:a616bd895a3eec00:Install Actions com.apple.dt.IDERunOperationWorkerFinished { [18:44:47]: ▸ "operation_duration_ms" = 55114; [18:44:47]: ▸ "operation_errorCode" = 60; [18:44:47]: ▸ "operation_errorDomain" = NSPOSIXErrorDomain; [18:44:47]: ▸ "operation_name" = "_IDEInstalliPhoneSimulatorWorker"; [18:44:47]: ▸ } sometimes crashing with Run test suite Tests2 encountered an error (Early unexpected exit, operation never finished bootstrapping - no restart will be attempted. (Underlying Error: Test crashed with signal term before starting test execution.))

Why is Apple not releasing Swift Assist?

Hello All, I am hoping someone has a solution we are encountering. We recently upgraded to XCode 16.3 this week, and were putting together the next test build to push to TestFlight. However, the AppStore is rejecting the app with the following message. ITMS-90048: This bundle is invalid - Your archive contains paths that are not allowed: [._Symbols] We have never had this before and the problem is, there is no path named "_Symbols" in our IPA. Doing some searching online I have seen people report the same problem when build using Flutter or React, but we are using plain vanilla Swift and Native iOS. We also have not added anything significantly new to our project since our last release a couple weeks ago. Any suggestion on how to fix this would be greatly apprecaited. Sincerely, Stan R. - CaringBridge

I’m using a Mac Mini M2 with macOS Sequoia 15.1 and running a virtual machine with the same OS. While logging into my account works in System Settings, adding it to Xcode 16.1 fails after the initial login with a decoding error: Decoding Error There was a failure decoding response: (HTTP 401, 60 bytes). There are similar issues in https://developer.apple.com/forums/thread/767673 and https://developer.apple.com/forums/thread/759877

Upgrading to Xcode 16.3, all previews across my AppKit project stopped working. The error message I'm getting is especially baffling. It says the project could not be built with incremental compilation because SWIFT_COMPILATION_MODE is set to "incremental": I tried clearing DerivedData with no effect. When I click the diagnostics button the information given is not very revealing, at least not to me. If I open the project in Xcode 16.2 everything works perfectly again. I switched over to Previews for all new code but this error situation is quite demotivating. Does anyone have any suggestions?

Xcode 16.3 build on ios18.4 ,app can't launch. Then lost connection to the debugger . but Xcode16.3 with ios18.3 can launch