I'm attempting to compile my app (on macOS 26), opting into the "Enhanced Security" (Xcode Version 26.0.1 (17A400)). Following Apple's documentation I enabled the capability via Xcode and clicked "Enable Build Settings" though now compilation fails: Use of undeclared identifier 'malloc_type_zone_malloc_with_options_backdeploy'; did you mean 'malloc_type_zone_malloc_with_options'? The (AI-based?) "Generate Fix for Issue" throws an error too 😅 See attached screenshots

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.

Cannot select individual view in selectable mode in Xcode preview, it only show the whole blue device border.

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

Hello Xcode 26.0.1 (17A400) Missing some Metal components When building a program using Metal, it induces an unexpected error : “error: error: cannot execute tool 'metal' due to missing Metal Toolchain; use: xcodebuild -downloadComponent MetalToolchain Command CompileMetalFile failed with a nonzero exit code” Which terminates the build The fix given “xcodebuild -downloadComponent MetalToolchain” using sudo does not work Did someone find a work around or could resolve the issue? Many thanks Jean MacBook Air M4; macOS 26.0.1; Xcode 26.0.1

Just downloaded XCode 26 and I see build fails despite Metal toolchain 26.0 downloaded. What am I missing? cannot execute tool 'metal' due to missing Metal Toolchain; use: xcodebuild -downloadComponent MetalToolchain

Got emailed three .txt crash files. Cannot for the life of me figure out how to get Xcode to do something with them. Tried: renaming .txt to .crash Dropping onto "devices and simulators" window Dropping on to "devices and simulators > select device > View device logs" "Download debug symbols" for the archive in Xcode (says "dowloaded debug symbols" so did it) ... and many other things Xcode 13 simply refuses to respond to the drag-and-drop of the file no matter the file extension and no matter where in Xcode's various windows/tools I drop it. Has anyone done this with a crash .txt file from app review and Xcode 13?

I have an app on the App Store for many years enabling users to post text into clouds in augmented reality. Yet last week abruptly upon installing the app on the iPhone the screen started going totally dark and a list of little comprehensible logs came up of the kind: ARSCNCompositor <0x300ad0e00>: ARSCNCompositor (0, 0) initialization failed. Matting is not set up properly. many times, then RWorldTrackingTechnique <0x106235180>: Unable to update pose [PredictorFailure] for timestamp 870.392108 ARWorldTrackingTechnique <0x106235180>: Unable to predict pose [1] for timestamp 870.392108 again several times and then: ARWorldTrackingTechnique <0x106235180>: SLAM error callback: Error Domain=Slam Error Code=7 "Non fatal error occurred due to significant drop in a IMU data" UserInfo={NSDescription=Non fatal error occurred due to significant drop in a IMU data, NSLocalizedFailureReason=SlamEngineNodeGroup Failure: IMU issue: gyro data stream verification failed [Significant data drop]. Failed on timestamp: 870.413247, Last known timestamp: 865.350198, Delta: 5.063049, System timestamp: 870.415781, Delta between system and frame: 0.002534. } and then again the pose issues several times. I hoped the new beta version would have solved the issue, but it was not the case. Unfortunately I do not know if that depends on the beta version or some other issue, given the app may be not installed on the Mac simulator.

When I try to build my project with Xcode 26.1 beta (17B5025f) it freezes a lot. The steps are as follows: Open my project with the aforementioned Xcode Start a build of one of my schemes Open a browser or any other app above the Xcode window Try to present the Xcode window on the foreground Result: Xcode freezes I cleared the Derived Data and it still happens

Is it just because it's still so early or are we not getting the feature in the EU for the time being?

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?

At the Platform State of the Union, Apple demoed clicking a ✨ button in the Xcode toolbar to use Apple Intelligence in Xcode. I don't see that button in Xcode Version 26.0 beta (17A5241e). Am I missing it? It's supposed to be in the upper-left corner, right? Do I need to turn it on or something? I'm on macOS 15.5 Sequoia, on a 16-inch, 2021 MacBook Pro

Hi everyone, After updating my Mac and Xcode to 26, I’m running into a consistent crash whenever I try to launch an app from Xcode. Environment: Mac: Apple Silicon M3 macOS: 26.0 (25A354) Xcode: 26.0.1 (17A400) Issue: When I press Run on any project (including new, empty projects), Xcode immediately crashes. This started only after updating to the latest macOS and Xcode. Crash details: The crash log shows: Application Specific Signatures: ___localError Thread 0 crashed inside -[IDEScheme _executionOperationForSchemeOperationParameters:...] from IDEFoundation/IDEKit. I also noticed background threads calling DVTPortal (developer portal requests) right before the crash. What I’ve tried so far: Cleared DerivedData, ModuleCache.noindex, and Xcode caches. Signed out/in of my Apple ID in Xcode. Recreated project schemes. Verified provisioning profiles. Reinstalled Xcode 26. Unfortunately, the crash still happens. Question: Is this a known issue with Xcode 26 on Apple Silicon (M3)? Has anyone seen a workaround? Any guidance would be greatly appreciated — I can’t currently launch apps in Xcode at all. Thanks!

Build functions on simulator but when I select run on connected iPhone (12 Pro Max, latest iOS 18 beta) I am given a prompt window that says: Preparing Tom's iPhone Xcode will continue when the operation is complete with a loading icon. I have let it sit on this screen for over an hour with no change. Running Xcode 16 Beta 4 on M3 MacBook Pro

Xcode build done. 0.7s Failed to build iOS app Uncategorized (Xcode): Unable to find a destination matching the provided destination specifier: { id:42969747-3560-448B-8EB3-CB5ED88D75C1 } Available destinations for the "Runner" scheme: { platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:00008132-0004256C34A1801C, name:My Mac } { platform:iOS, id:dvtdevice-DVTiPhonePlaceholder-iphoneos:placeholder, name:Any iOS Device } { platform:iOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-iphonesimulator:placeholder, name:Any iOS Simulator Device } Could not build the application for the simulator. Error launching application on iPhone 17.

When I open the "devices and simulators" window now I only see "No selection" in the center. No sidebar pane, and no detail pane. I was able to set up some simulators up to last week or so, and now this. I've no idea how to create a new simulator or inspect the ones I have.

I have Xcode 16.4 and want to upgrade to Xcode26 on a MacBookPro with Intel and macOS 26.0. However I keep getting the error message (in German), that the download of the App is not possible, Xcode could not be installed and I should try later. I tried to restart the Mac, close all Apps etc. I tried it meanwhile several times, but still no success. Any Idea what I could try or do to solve the problem? Thx in advance

My app is built in flutter and has a native Widget in it. The widget's Info.plist file has the NSExtensionPrincipalClass key that links to the VerseOfTheDayWidgetBundle as string. However the Transport app throws an error: Validation failed (409) Unexpected Info.plist key. Unexpected key NSExtensionPrincipalClass found in extension Info.plist for Payload/Runner.app/PlugIns/VerseOfTheDayWidgetExtension.appex. (ID: 266e2dd8-44b9-4d67-97d9-d7d47013cff9) Now I tried removing the NSExtensionPrincipalClass and but the simulator throws an error asking for the NSExtensionPrincipalClass or Storyboard class but my widget is completely written in SwiftUI and does not have a storyboard which is why I am using the NSExtensionPrincipalClass. I tried to bypass this by creating two info.plist files for my widget (debug and release) this bypassed the security check on Transporter but then the app wouldn't install in TestFlight confirming the same issue as the simulator. I can confirm that my app's info.plist does not have any mention of NSExtensionPrincipalClass. so that isn't what is causing this error. I tried a lot of things but it just wouldn't work, at this point I feel maybe its something wrong with the checks Transporter app. I'm not sure, please guide me. The widget and the app work completely fine on the simulator with the NSExtensionPrincipalClass, its just the Transporter that does not like it being there.

Has anyone been able to use Google Gemini with Intelligence in Xcode? I got the Claude models working in there but as much as I try I can't see any Gemini models.

I get an error when using Share Extension to share images in iOS 26. It works fine in iOS 18. The error message is: Error acquiring assertion: <Error Domain=RBSAssertionErrorDomain Code=2 "Could not find attribute name in domain plist" UserInfo={NSLocalizedFailureReason=Could not find attribute name in domain plist}>. What should I do? My plist file looks like this: NSExtension NSExtensionAttributes NSExtensionActivationRule NSExtensionActivationSupportsImageWithMaxCount 1 NSExtensionMainStoryboard MainInterface NSExtensionPointIdentifier com.apple.share-services