How do I resolve these errors reported in Xcode about using Core Data Composite Attributes feature? Composite Attributes feature requires tvOS deployment target 17.0 or later Composite Attributes feature requires watchOS deployment target 10.0 or later My app is a Cocoa app and targets macOS 14.0+. I do not have an iOS, iPadOS, tvOS nor watchOS targets. So, I don't understand why I am getting these errors. My Xcode project format is set to Xcode 16.0. I am on macOS Sequoia 15.2 (24C101) and using Xcode Version 16.2 (16C5032a). If you create a new Xcode project and choose macOS > App and Storage > Core Data and then Add Composite Type and set an attribute name and type, you will get the errors.

The operation couldn’t be completed. (IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $123069a90).DownloadError error 3.) Domain: IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $123069a90).DownloadError Code: 3 User Info: { DVTErrorCreationDateKey = "2025-01-31 01:58:50 +0000"; } There was an error processing the asset. Domain: IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $123069a90).DownloadError Code: 3 System Information macOS Version 15.3 (Build 24D60) Xcode 16.2 (23507) (Build 16C5032a) Timestamp: 2025-01-31T09:58:50+08:00

I'm getting hundreds of the message below in Xcode. I've narrowed it down to when I instantiate the following AVAudioUnitComponentManager.shared() Message send exceeds rate-limit threshold and will be dropped. { reporterID=231700600717315, rateLimit=32hz }

I am experiencing an issue with Xcode 16.2 (15E204a) where global workspace search does not return results from .xib files.

Whenever I run anything in xcode it opens an extra terminal that runs the program then exits immediately, but the app still runs through the normal xcode launch. It's not a huge issue but It's getting really annoying to realize I have like 7 windows of terminal open that are just doing nothing. Has anyone had this issue before?

I have a sample SwiftUI iOS app. As shown in the screenshot below, my project has three configurations: Debug, MyDebug, Release. If I select the Debug or MyDebug scheme, I get a preview. But if I select the Release scheme, I get an error that says the following. ”***.app” needs -Onone Swift optimization level to use previews (current setting is -O) , where *** is the app name. It probably has nothing to do with the Preview error, but the Info.plist has a dictionary such that the key name is devMode, and the value is $(DEVMODE). And I have a user-defined setting as shown below. My ContentView has the following. import SwiftUI struct ContentView: View { @State private var state: String = "" var body: some View { VStack { Text("Hello, world!: \(state)") } .onAppear { if let devMode = Bundle.main.object(forInfoDictionaryKey: "devMode") as? String { print("Development mode: \(devMode)") state = devMode } if let path = Bundle.main.path(forResource: "Info", ofType: "plist") { if let dict = NSDictionary(contentsOfFile: path) { print("**** \(dict)") } } #if DEBUG print("Debug") #elseif MYDEBUG print("MyDebug") #else print("Que?") #endif } } } #Preview { ContentView() } So my question is how I get the preview for all three build schemes? Muchos thankos.

Summary : I tried everything from uninstalling completely XCODE to upgrading the macOS without any success. Cleanup Xcode & Upgrade macOS to 15.3.1 This scripts were used to clean up the xcode and residual files. Also used CleanMyMac for the rest ! VERSION="" # "-16.2.0" ## Xcode Deep Clean # 1. Delete Xcode Itself sudo rm -rf /Applications/"Xcode${VERSION}".app # 2. Remove Xcode Cache and Derived Data sudo rm -rf ~/Library/Caches/com.apple.dt.Xcode sudo rm -rf ~/Library/Developer/Xcode sudo rm -rf ~/Library/Application\ Support/Xcode sudo rm -rf ~/Library/Developer/CoreSimulator sudo rm -rf ~/Library/Developer/Shared # 3. Remove Command Line Tools (CLT) sudo rm -rf /Library/Developer/CommandLineTools # 4. Remove Xcode Preferences and Supporting Files sudo rm -rf ~/Library/Preferences/com.apple.dt.Xcode.plist sudo rm -rf ~/Library/Logs/CoreSimulator sudo rm -rf ~/Library/Saved\ Application\ State/com.apple.dt.Xcode.savedState # 5. Remove Simulator Data sudo rm -rf ~/Library/Developer/CoreSimulator # 6. Remove Swift & Code Completion Models sudo rm -rf ~/Library/Application\ Support/Developer/Shared/Xcode sudo rm -rf ~/Library/Application\ Support/Xcode Problem : When i try to press the button "Get" from Xcode -> Settings -> Components i receive systematically these issues : For Predictive Code Completion Model : The operation couldn’t be completed. (IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $11b3c5a90).DownloadError error 2.) Domain: IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $11b3c5a90).DownloadError Code: 2 User Info: { DVTErrorCreationDateKey = "2025-02-20 2:36:06\U202fPM +0000"; } -- There was an error transferring over the network. Domain: IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $11b3c5a90).DownloadError Code: 2 -- System Information macOS Version 15.3.1 (Build 24D70) Xcode 16.2 (23507) (Build 16C5032a) Timestamp: 2025-02-20T15:36:06+01:00 For Platform Support (ex. iOS 18.2 + iOS 18.3.1 Simulator) Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = "2025-02-20 2:24:03\U202fPM +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.MobileAssetError.Download Code: 49 User Info: { checkConfiguration = 1; } -- System Information macOS Version 15.3.1 (Build 24D70) Xcode 16.2 (23507) (Build 16C5032a) Timestamp: 2025-02-20T15:24:03+01:00 More Details : By the way im on a MacBook Pro with M1 Max 32GB and 1TB storage. I still have more than 100 GB of Storage. I also switched to RJ45 to be sure its not network issue !

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.MobileAssetError.Download Code: 49 User Info: { checkConfiguration = 1; } System Information macOS Version 15.0 (Build 24A335) Xcode 16.2 (23507) (Build 16C5032a) Timestamp: 2025-02-21T11:05:50+02:00

I can‘t use breakpoints on the simulator after updating Xcode and the simulator. I can use breakpoints on a physical iPhone. I tired to download other iOS simulator version, but still not working. Both SwiftUI and UIKit not working. Xcode version: 16.2 SDK version: 18.2 (22C146) Simulator version: 18.3.1 (22D8075) Mac OS version: 15.4 Beta Couldn't find the Objective-C runtime library in loaded images. Message from debugger: The LLDB RPC server has crashed. You may need to manually terminate your process. The crash log is located in ~/Library/Logs/DiagnosticReports and has a prefix 'lldb-rpc-server'. Please file a bug and attach the most recent crash log.

I have had content blockers in the Mac App Store for years. Ever since moving to Sonoma, doing a clean build or archive in XCode deletes the extension from Safari settings since it never gets into the built app. The only way for me to get it back is to remove the DerivedData and target, reboot, and create a target with a different name. That works and stays around in Safari settings as long as I only build and don't clean. However, a clean or an archive removes it again. Restoring a version of the project from Time Machine that was posted to the App Store weeks or months ago doesn't work. However I can download the version of the app in the App Store, and it works, but I can't build it now from the source code that was used to build that version without going through the above process. Moving from Sonoma 14.7.1 to 14.7.2 didn't work. I would move to Sequoia if I had reason to believe that would work, but I don't. Safari 18.2, Sonoma 14.7.2, 32GB, 2.2 GHz 6-Core Intel Core i7

Beginning April 24 releasing on the App Store requires using Xcode 16, iOS 18 SDK. https://developer.apple.com/news/upcoming-requirements/?id=02212025a Xcode only offers simulators for iOS 15. I had not been able to install and use previous versions. Does it imply iOS 15 is the minimum target allowed?

Hello, I'm trying to use Xcode's ARKit Session replay functionality. I have a capture I made using Reality Composer and when trying to use it with Xcode's replay functionality the installation and debugging process seems stalled forever. I've gotten it to work once so I know the capture file is functional but I have never gotten it to work a second time, even though I didn't change any settings. No amount of restarting Xcode, the Mac, or the iPhone seem to work. I have also tried cleaning build folders, reinstalling the app, and clearing DerivedData. I can confirm from the Xcode logs that the app installs correctly but the app never launches. If I unselect the checkbox for "ARKit Replay Data", the app launches and debugs nearly instantly. I have tried letting it "attach" for up to 10 minutes to no avail.

Hi there, I uploaded an update bundle for the posted app, but I got a rejection message. ITMS-90048: This bundle is invalid - Your archive contains paths that are not allowed: [._Symbols] The XCode version I'm using is 16.2, and I've been trying to find a route using Run Script and Finder, but I don't know what the hell it is about. Does anybody know what could cause this issue? Any help would be appreciated. Thanks.

macOS Version 15.3.2 (Build 24D81) After initiating via Shift/Command/0 the Developer Documentation Window, the indexing of v277 index structure is starting /Users/[name]/Library/Developer/Xcode/DocumentationCache/ ==> but unfortunately not ending! Activity Monitor reports during hours high CPU (~80%) for Xcode process, but the indexing does not stop or end. After hours it is still around 146 MB instead of about 550 MB as in previous releases. Indexing starts with 11 or more threads, but suddenly it drops to 10 threads and seems stopping, still using cpu. Also restarting Xcode does not help. Process restarts but after some minutes seems to hang or stuck around 200MB indexed. Also removing subfolders does not help. (NSOperatingSystemVersion(majorVersion/ 16, minorVersion/ 3, patchVersion/ 0) they are recreated but index still stucks after some time. No clue. will reverting back to 16.3 beta2 Reported via FB16926964

Hello everyone, I'm encountering a persistent issue with my newly created widget project, even though it’s a clean, minimal setup. Every time I try to run the widget on the simulator or a device, I get the following error message: [S:1] Error received: Connection invalidated. I get this error even in a new project (I just created a new one) when I add a widget extension to it. The app itself works fine—no errors—but when I try to install the widget extension, it always shows me this error. Initially, I thought the issue was caused by an incorrect URLSession, but even after creating a clean (default) widget extension, the issue persists. I don’t know what to think anymore. Has anyone encountered this before? It’s completely blocking my progress. Conditions - new project from iOS App template WidgetExtension from template with no changes Iphone 14 pro IOS - 18.3.2

I've observed a significant performance regression in Apple Clang 16 (Xcode 16.0/16.2) compared to Clang 15 (Xcode 15.2) when processing flutter aot compilation. Further research shows that clang -cc1as process became extremely slow. The compilation time has increased by approximately 4x. Environment Machine: Apple M2 (8C8T) Memory: 16GB macOS Version: 14.7.2 Target: Flutter AOT compilation (snapshot_assembly.o) Performance Comparison Xcode Version iOS SDK Duration 15.2 17.2 1:08.90 15.2 18.2 1:03.98 16.2 17.2 4:11.07 16.2 18.2 4:08.43 16.0 18.2 4:29.32 Reproduction Steps The issue can be reproduced with the following command which is generated by flutter aot_assembly_release process: time ${xcode_app_path}/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc \ -arch arm64 \ -miphoneos-version-min=12.0 \ -v \ -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS18.2.sdk \ -c ${project_path}/.dart_tool/flutter_build/f9ebf46f040933de7c8d103c84d38156/arm64/snapshot_assembly.S \ -o ${project_path}/.dart_tool/flutter_build/f9ebf46f040933de7c8d103c84d38156/arm64/snapshot_assembly.o Additional Information This issue specifically affects large assembly files generated by Flutter's AOT compilation The performance regression appears to be consistent across different iOS SDK versions The same assembly file compiles significantly faster with Xcode 15.2 Same performance regression observed on M4 Mac mini, suggesting this is not hardware-specific Size of object: size -m ${project_path}/.dart_tool/flutter_build/f9ebf46f040933de7c8d103c84d38156/arm64/snapshot_assembly.o Segment : 64577616 Section (__TEXT, __text): 26603344 Section (__DATA, __bss): 48 (zerofill) Section (__TEXT, __const): 21292928 Section (__DWARF, __debug_abbrev): 61 Section (__DWARF, __debug_info): 8934534 Section (__DWARF, __debug_line): 4464443 Section (__LD, __compact_unwind): 3282208 total 64577566 total 64577616 Questions Is this a known issue with Apple Clang 16? Are there any workarounds or compiler flags we can use to improve the performance? Is this behavior expected or should it be considered a regression? Any insights or suggestions would be greatly appreciated.

Hey Apple Team! We recently updated to Xcode 16 and saw a massive memory spike, which caused "Out of memory" Mac warnings in the final stages of our app's build process. We noticed that the process responsible for this is "EmbeddedBinaryValidationUtility" (see screenshot). Is there a workaround to limit its memory usage? This is causing significant anguish for our developers.

We enabled ARKit replay data and chose a .mov file from reality composer. However, the app does not launch after build and run in Xcode. It stays stuck saying "Attaching to app on iPad". Does anyone have this problem? System Information: macOS Version 14.6.1 (Build 23G93)

I just noticed this today while building a React Native app. Anybody else seen this and know what it means/how to track it down/how to fix it

Use a project hosted by a filesystem/local Git repository. Make changes to any file in the project. Switch to the "Source Control" Navigator, and the "Changes" sub-navigator within that. Select "Uncommitted Changes", or any file below that. Verify that your changes appear in the source change browser/editor on the right. Click the "Stage All" button. Absolutely nothing happens, 90% of the time. Go back to the Changes navigator, right-click on an item there and select the "Stage Changes in..." popup menu item. It works, every time. I haven't found any pattern to the 10% of the time the "Stage All" button actually works, wrt what changes are selected in the navigator, whether I've already typed a commit message, etc.. I happen to be using Xcode 16.0 on two Macs: a Mac Studio running MacOS 14.6.1, and a 2019 MacBook Pro running MacOS 14.7.1. Both exhibit the same symptoms.