Xcode

Reproducibility 100% on iOS 15.4 and iOS 16.6 Zero crash on iOS 18.6 Xcode 26.1 Steps to Reproduce Xcode 26.1 → New iOS App Replace ViewController.swift with the 20-line code below Run on real device • iPhone XR iOS 15.4 • iPhone 13 iOS 16.6 Tap the link → breakpoint in decidePolicyFor lldb → po navigationAction.sourceFrame Actual Result (lldb) po navigationAction.sourceFrame nil Swift declaration lies: public var sourceFrame: WKFrameInfo { get } // non-optional → Instant EXC_BREAKPOINT libswiftFoundation.dylib`URLRequest._unconditionallyBridgeFromObjectiveC Objective-C tells the truth: po [(WKNavigationAction *)navigationAction fixedSourceFrame] nil iOS 18.6 → same code prints a valid WKFrameInfo, no crash. Expected sourceFrame must be declared WKFrameInfo? in Swift or at least documented “can be nil on iOS 15–16”. Impact Every WKWebView app that touches sourceFrame on iOS 15.4 & 16.6 ships with a latent crash. Production Workaround @implementation WKNavigationAction (Safe) (WKFrameInfo

I am getting this error msg when I try to run a SwiftUI Preview on an iOS 15.5 simulator: Termination Reason: Namespace DYLD, Code 1, Library missing | Library not loaded: /usr/lib/swift/libswift_StringProcessing.dylib | Referenced from: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/iphonesimulator/libLiveExecutionResultsLogger.dylib | Reason: tried: '/Users/hfg/Library/Developer/Xcode/DerivedData/Testios15sim-aawlbfbtggzozseoekycwwpadhrc/Build/Intermediates.noindex/Previews/iphonesimulator/Testios15sim/Products/Debug-iphonesimulator/libswift_StringProcessing.dylib' (no such file), '/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 15.5.simruntime/Contents/Resources/RuntimeRoot/usr/lib/swift/libswift_StringProcessing.dylib' (no such file), '/usr/lib/swift/libswift_StringProcessing.dylib' (no such file), '/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 15.5.simruntime/Contents/Resources/RuntimeRoot/usr/lib/libswift_StringProcessing.dylib' (no

When I run the following code and change Is On, I get a problem with the layout of the Picker. There is no problem when using Text(), but when using only Image, it works fine on iOS but there is a problem on macOS. Tested on macOS 26.1, Xcode 26.1. import SwiftUI struct ContentView: View { @State var model = Model() var body: some View { Form { Picker(Category, selection: $model.category) { ForEach(Category.allCases) { item in Image(systemName: item.icon) .tag(item) } } .pickerStyle(.segmented) Toggle(Is On, isOn: $model.isOn) } .formStyle(.grouped) } } struct Model { var category: Category = .a var isOn: Bool = false } enum Category: Int, Identifiable, CaseIterable { case a, b, c var id: Int { rawValue } var icon: String { switch self { case .a: return a.circle.fill case .b: return b.circle.fill case .c: return c.circle.fill } } var name: String { switch self { case .a: return a case .b: return b case .c: return c } } } code-block

Lately I am getting this error. GenerativeModelsAvailability.Parameters: Initialized with invalid language code: en-GB. Expected to receive two-letter ISO 639 code. e.g. 'zh' or 'en'. Falling back to: en Does anyone know what this is and how it can be resolved. The error does not crash the app

Hello, I am facing a recurring issue with Xcode iOS simulator (preview). I want to preview a SwiftUI for iOS in Xcode, but the Simulator app fails to boot up. I receive the following error in Xcode: Cannot Preview in this file. Simulator was shutdown during an update. I have tried the following: Completely uninstalling XCode and deleting all developer data, then reinstalling everthing again. Shutdown and restart Deleting all developer data, deleting XCode cache Reinstalling iOS Simulator runtimes and reconfiguration of simulators. Tested using different simulator and runtime versions. xcrun simctl --set previews delete al My reported issues: FB20987522 FB20485454 Thank you Best regards, Jens

I have a question concerning Xcode version 26. Ever since I installed this version on my Mac, I have been experiencing issues with the StoreKit configuration file. The Simulated StoreKit Failures check boxes and selections are all grayed out. Once in a while, I see a pop-up stating The document 'TaConfig.storekit' could not be autosaved. The file has been changed by another application. The pop-up Save as... points to where my config file is located, but the config file is grayed out. I thought maybe the directory where the file is located is write protected, but I have been able to save other files to the same directory. The Edit Scheme... -> Run -> Options has the StoreKit Configuration set for my file TaConfig.storekit. It feels like there is an option somewhere that I'm missing.

Hello Apple Team, I’ve encountered a regression in iOS 26.1 when building my app with Xcode 26 (iOS 26 SDK). The issue affects PKPaymentButtonType.plain, which now renders as fully invisible and produces transparent snapshots, even though the same code worked correctly in previous Xcode/iOS versions. This has a real-world impact because many apps generate static images from PKPaymentButton for payment selection UIs using UIGraphicsImageRenderer, layer.render(in:), or custom snapshot utilities. When using PKPaymentButton(paymentButtonType: .plain, paymentButtonStyle: .black) on iOS 26.1, when built with Xcode 26, the button: Appears blank / invisible Cannot be snapshotted Produces a fully transparent UIImage, even though the CGImage object exists Behaves differently than older SDKs (Xcode 16.x / iOS < 26.1 This regression only appears when compiling with the new SDK. Other button types work fine. Expected Behavior .plain button should render glyphs as do

Hello, Is there any plan to integrate realtime sanitier (RTSan) in Apple Clang? This tool has been introduced in Clang 20.1.0 back in March 2025. This tool is incredibly useful, and having it in AppleClang (and ideally integrated in Xcode and xcodebuild) would be great. Thank you, Best, Thomas