“Xcode”

I am developing a Flutter iOS application and encountering a crash when using biometric authentication (Face ID) via the local_auth plugin. ■ Environment Flutter: 3.x local_auth: 2.2.0 (also tested with 2.1.6) iOS: real device (Face ID is working normally for device unlock) Firebase Authentication (email/password) Xcode build ■ Issue When calling biometric authentication, the app crashes immediately. Code: final didAuthenticate = await auth.authenticate( localizedReason: 'Authenticate to login', options: const AuthenticationOptions( biometricOnly: false, useErrorDialogs: false, ), ); ■ Error Thread 1: signal SIGABRT Crash occurs in libsystem_kernel.dylib (__pthread_kill) Happens immediately when authenticate() is called No exception is caught in Dart (native crash) ■ Verified NSFaceIDUsageDescription is correctly included in Info.plist Confirmed it exists in the built Runner.app Info.plist localizedReason is non-empty and in English Flutter clean / pod install executed App reinstall

Hi everyone, I’m seeing a strange rendering issue in Xcode 26.3 that seems to affect only the iOS Simulator. Environment: Xcode 26.3 SwiftUI app Reproduces in Simulator only Reproduces across multiple simulator device models My code is just a minimal example Expected behavior: The view should fill the entire screen. Actual behavior: The app content is rendered only inside a centered rounded rectangle/card-like area, with black space around it, as if the app canvas is being clipped incorrectly. Minimal reproduction: import SwiftUI @main struct LayoutShowcaseApp: App { var body: some Scene { WindowGroup { Color.green.ignoresSafeArea() } } } I also tried wrapping it in a ZStack and using: .frame(maxWidth: .infinity, maxHeight: .infinity) .background(...) .ignoresSafeArea() but the result is the same. What I already tried: Clean Build Folder Switching simulator device models Resetting simulator content/settings Rebuilding from a fresh minimal SwiftUI project Since this happens with such a minima

I’m seeing what looks like a compiler / macro-expansion / build-pipeline issue. Environment: Xcode 26.4 RC (17E192, latest); I believe it is also reproducible on earlier versions. github source code I reduced this to a very small macOS/iOS app plus a local macro package. The app logic is trivial, but app exits immediately on launch with code 138 Important observations: If I inline everything into a single file, the problem disappears. I also see an error like this during investigation: The file path does not exist on the file system: /var/folders/.../swift-generated-sources/@__swiftmacro_18MacroFeedbackRepro20MountActivationState17PreservedRawValuefMm_.swift That makes me suspect this is not an application logic issue, but something in macro expansion / generated source handling / compiler pipeline.

I’m seeing a visual glitch with toolbar buttons when building with Xcode 26 for iOS 26. During transitions (both pushing in a NavigationStack and presenting a .sheet with its own NavigationStack), the toolbar button briefly flashes the wrong background colour (black in dark mode, white in light mode) before animating to the correct Liquid Glass appearance. This happens even in a minimal example and only seems to affect system toolbar buttons. A custom view with .glassEffect() doesn’t have the issue. I’ve tried: .tint(...), UINavigationBarAppearance/UIToolbarAppearance, and setting backgrounds on hosting/nav/window but none of those made any difference. Here’s a minimal reproducible example: import SwiftUI struct ContentView: View { @State private var showingSheet = false var body: some View { NavigationStack { List { NavigationLink(Push (same stack — morphs)) { DetailView() } Button(Sheet (separate stack — flashes)) { showingSheet = true } } .navigationTitle(Root) .scrollContentBackground(.hidden) .b

Since 26.4 beta 3 I've been having errors after a few hours of using Claude Agent. I get an error stating that I am not authed. If I go into Xcode settings, it still shows I am signed into Claude Agent. I have click sign out and then go through the whole auth process again to start using the agent again. This is on two separate computers. Is there anything I can do to stop this behaviour and stay logged in for longer? It worked fine in 26.3.

Just installed the new Xcode 26.4 RC build (17E192) after happily using 26.3 for a few months. I'm noticing some immediate regressions in the Intelligence features: Frequent losing of OAuth token (Claude Agent). This had previously been fixed and now is back. Agent Thinking is constrained to thought bubble windows, which are (a) too small to read, (b) not scrollable when thinking goes beyond a few paragraphs. Yes they are tappable when thinking is finished, but this doesn't help. Due to (2), in deep thinking, it's impossible to follow progress beyond the visible window, so impossible to know if the agent is going off the rails. I'm noticing just more general slowness to complete tasks. Not just complete them -- it seems like it takes longer to START tasks, which is really weird. It sits there thinking for longer. Same project, same model as before. Every time you tap New Chat it presents both Claude and Codex choices, even if you're only signed into one. This turned a simple single tap into now a req

(! status in pluginkit, FinderSyncExtensionHost process missing) macOS Version: 26.3.1 Beta (25D771280a) Xcode Version: 16.3 (17C529) Steps to reproduce: Create a Finder Sync Extension project Build and install to /Applications Enable in System Settings → Extensions → Finder Extensions Extension shows ! in pluginkit output FinderSyncExtensionHost process never starts Context menu never appears in Finder Expected: Extension loads and context menu appears Actual: Extension marked with ! in pluginkit, no process launched pluginkit output: ! com.github.astronautJack.EasyNewFile.EasyNewFileExtension(1.0)

I'm developing an audio player app that uses AVAudioFile to read PCM data from various formats. I'm experiencing severe performance issues when seeking in FLAC, while other compressed formats (M4A/AAC) work correctly. I don't intend to use them in my app, but I also tested mp3 files just by curiosity and they also have this issue. Environment: macOS 26 (Tahoe) Xcode 26.3 Apple Silicon (M1) The issue: After setting AVAudioFile.framePosition to a position mid-file, the subsequent call to AVAudioFile.read(into:frameCount:) blocks for an unreasonable amount of time for FLAC and MP3 files. The delay scales linearly with the seek target, seeking near the beginning is fast, seeking toward the end is proportionally slower, which suggests the decoder is decoding linearly from the beginning of the file rather than using any seek index. (My app deals with “images” of Audio CDs ripped as a single long audio file.) The issue is particularly severe when reading files from an SMB network share (server on Ethernet,

Hi everyone, I'm building an iOS app that uses a DeviceActivityMonitor app extension as part of the Screen Time / Family Controls API. Every time I try to upload my IPA to App Store Connect, the validation fails with this error: Invalid Info.plist value. The value of the NSExtensionPointIdentifier key, com.apple.deviceactivity.monitor, in the Info.plist of 'Alexandria.app/PlugIns/AlexandriaActivityMonitor.appex' is invalid. Error Domain=IrisAPI Code=-19241, iris-code=STATE_ERROR.VALIDATION_ERROR What I have verified (everything looks correct): NSExtensionPointIdentifier = com.apple.deviceactivity.monitor NSExtensionPrincipalClass = AlexandriaActivityMonitor.AlexandriaActivityMonitorExtension (correctly resolved in the compiled binary, verified with plutil -p) The Swift class correctly subclasses DeviceActivityMonitor CFBundleShortVersionString matches the main app Both the main app and extension provisioning profiles explicitly contain com.apple.developer.family-controls = true (verified by inspecting embedde