Build, test, and submit your app using Xcode, Apple's integrated development environment.

Posts under Xcode tag

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Can an IP address manually be entered into Xcode to wirelessly connect to an iOS device?
I often use a Wi-Fi network where: Whatever mechanism Xcode uses to automatically discover a previously paired iOS device seems to be blocked (the Devices and Simulators window shows "Browsing on the local area network for [iPhone]" and never proceeds), but I can connect to the iOS device from my Mac if I know its IP address, such as by pinging it The same hardware/software configuration works with wireless Xcode connections on a different Wi-Fi network. Thus I'm wondering if there's any functionality that allows the IP address to be manually entered into Xcode to avoid needing to connect a cable from my Mac to my iPhone during development. Searching around seems to suggest this existed at some point in the past but I can no longer find this in a current version of Xcode. Or if there are any other workarounds, although I can't modify the network itself as it's not my network.
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Nov ’25
Warning on Archiving - ExtensionKit extension not embedded
Hello! Ive been working on a package tracking app for iOS and was looking forward to pushing it to TestFlight for some testers to use. When I go to archive the package, I get a warning about the "...TrackerIntents.appex is an ExtensionKit extension and must be embedded in the parent app bundle's Extensions directory, but is embedded in the parent app bundle's Tracker.app/Extensions directory". The extension is for siri integration with shortcuts. I have done quite a lot of things to try and diagnose this but cant seem to get passed this warning. I know it's a warning but would rather it not exist. Ideally I would think its a matter of "moving" the items but in the navigation area, I dont see an extensions area. The main app target has it in the dependencies along with the EmbedExtensionKit Extensions in the Build Phases. Any ideas or configs I can try? I can provide more information if needed. This is on the latest Xcode version 26.0.1 for iOS 26. Thank you.
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Nov ’25
Xcode shows alert about unknown com.apple.quicklook.preview extension point when running on Apple Vision Pro Simulator
I have an iOS app with a QuickLook extension. I also added Apple Vision Pro in the target's General > Supported Destinations section. About one year ago, I was able to run the app on iPhone, iPad and Apple Vision Pro Simulators. Today I tried running it again on Apple Vision Pro with Xcode 26.0.1, but Xcode shows this error: Try again later. Appex bundle at ~/Library/Developer/CoreSimulator/Devices/F6B3CCA8-82FA-485F-A306-CF85FF589096/data/Library/Caches/com.apple.mobile.installd.staging/temp.PWLT59/extracted/problem.app/PlugIns/problemQuickLook.appex with id org.example.problem.problemQuickLook specifies a value (com.apple.quicklook.preview) for the NSExtensionPointIdentifier key in the NSExtension dictionary in its Info.plist that does not correspond to a known extension point. I tried again later a couple times, even after running Clean Build Folder Immediately, without any change. I can reproduce this with a fresh Xcode project to which I add a Quick Look Preview Extension and Apple Vision Pro as a supported destination. The error doesn't happen when running on Apple Vision Pro (Designed for iPad) or iPad Pro 13-inch (M4) destinations. What is the problem? I created FB20448815.
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Nov ’25
Xcode 26 / iOS 26 - XIB incorrectly references "HiraginoKakuGothic.ttc" causing build warnings
Hello, I'm encountering a persistent issue when building my project with Xcode 26 and iOS 26. The console shows errors related to font file references that don't actually exist in my project. GSFont: file doesn't exist - "file:///private/var/containers/Bundle/Application/...../HiraginoKakuGothic.ttc" After investigation, I found that the issue originates from XIB files incorrectly referencing HiraginoKakuGothic.ttc: <customFonts key="customFonts"> <array key="HiraginoKakuGothic.ttc"> <string>HiraginoSans-W3</string> </array> </customFonts> The problem appears to be triggered when setting UILabel fonts to "ヒラギノ角ゴシック W3 16.0" in Interface Builder, which causes the XIB to reference HiraginoKakuGothic.ttc. Interestingly, when I create a new project and use the same fonts ("ヒラギノ角ゴシック W3 16.0"), it does NOT automatically reference HiraginoKakuGothic.ttc. Here's what I've tried: ①Changed both UILabels' fonts to system font ②Verified in XIB Source Code that the .ttc references were gone ③Cleaned Build Folder ④Cleared DerivedData ⑤Restarted Xcode ⑥Set the labels back to "ヒラギノ角ゴシック W3 16.0" ⑦Checked XIB Source Code again - the non-existent .ttc references reappeared Even if I manually remove the customFonts references from the source code, they get regenerated as soon as I make any font changes in Interface Builder. I've also noticed that Xcode 16.1 has the same underlying issue, though it doesn't produce the console errors that Xcode 26 does. This seems to be a long-standing XIB issue, possibly related to reference caching. While new projects aren't affected, existing projects continue to maintain these incorrect references. My questions: How can I permanently resolve this issue in my existing project? What's the potential impact of these incorrect font references? Is there a way to clean up these cached references without affecting the rest of the project? Any insights or workarounds would be greatly appreciated. Thank you.
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Nov ’25
Icon Composer and Xcode building time
Hi everyone, I’ve run into a strange issue while building my app with Xcode 26 beta 6 (targeting iOS 26). When I include an app icon created using Icon Composer, the build time jumps to over 5 minutes. During this time, I noticed that a utility called AssetCatalogSimulatorAgent is consuming a significant amount of CPU. If I remove the Icon Composer-generated icon from my target, the build completes in about 40 seconds. This behavior is consistent across multiple builds. Has anyone else experienced this? Is there a known workaround or optimization for icons created with Icon Composer? I’d love to keep using the new icon format, but the build time is becoming a real bottleneck. Thanks in advance!
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Nov ’25
Clarification on Mandatory Xcode Version Requirements for App Store Submissions in 2026
We’re preparing our 2026 iOS development roadmap and need clarification on upcoming App Store submission requirements related to Xcode versions. Our team plans to migrate our apps to Xcode 26 by December 2025, and we’ve seen references indicating that Xcode 26 or later may become mandatory for App Store submissions starting April 2026. Could Apple please confirm: 1. Whether April 2026 is the official enforcement date after which builds created with earlier versions of Xcode (e.g., Xcode 16.x) will no longer be accepted for App Store submission. 2. Whether there will be any grace period or continued acceptance for builds created with older versions of Xcode beyond that date. We want to ensure our upgrade plans and release timelines are aligned with Apple’s official submission policies to prevent any disruption to our delivery schedules. Thank you for your guidance.
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Nov ’25
Liquid Glass App Icons without Icon Composer
We have found that on iOS 26 beta some of our app icons built from an Xcode 16 asset catalog containing a single 1024x1024 .png file have a Liquid Glass effect applied to them while others have not. The documentation states that If you choose not to use Icon Composer, you can still use an AppIcon asset catalog in your project containing individual app icon images and let the system apply the Liquid Glass material. and If you prefer, you can take advantage of the system’s automatically generated treatment that is applied to all app icons. Is there any insight into how the system treats app icons that have not yet been updated with Icon Composer?
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2.2k
Nov ’25
Xcode SPM (Swift Package Manager) Error
Xcode SPM (Swift Package Manager) Error I added the "Apple App Store Server Swift Library" library to Xcode using Swift Package Manager. Both the project and target are set to iOS 14 or higher. However, when I build after adding the library, an error occurs with the library. A message appears stating that the target is set to iOS 12. I'm using Xcode 26.0.1. Even after adding it to all my projects, the build continues with the same error. I've tried building the library from version 1.0.0 to the latest version, but the same error persists. Even after completely cleaning the project and running it, the same error persists. Does anyone know how to fix this?
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Nov ’25
SwiftData error: NSKeyedUnarchiveFromData' should not be used to for un-archiving and will be removed in a future release
I am using SwiftData for my model. Until Xcode 15 beta 4 I did not have issues. Since beta 5 I am receiving the following red warning multiple times: 'NSKeyedUnarchiveFromData' should not be used to for un-archiving and will be removed in a future release This seems to be a CoreData warning. However, I am not using CoreData directly. I have no way to change the config of CoreData as used by SwiftData. My model just uses UUID, Int, String, Double, some of them as optionals or Arrays. I only use one attribute (.unique).
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3.3k
Nov ’25
Apple Watch can't always reconnect
Using Xcode to build and deploy the app to my watch, this is what I get: “Waiting to reconnect to Apple Watch. Previous preparation error: Transport error." And then “Connecting to Apple Watch. Xcode will continue when the operation completes.” And these messages continue to switch between each other. Sometimes the watch to connect and the application starts, but more often a scenario occurs with endless reconnection. I'm using: MacOS 14.4.1 (MacBook Pro 2019; 1.4 GHz Quad-Core Intel Core i5), Xcode 15.3, Watch OS 10.2 (Apple Watch SE 1), iOS 17.1.1 (iPhone 15 Pro). Methods I tried: Connecting Macbook, iPhone and Watch to the same WIfi network; Disabling Watch (and IPhone) from the "Devices and Simulators" menu and setting up Watch (and IPhone) from the beginning. Any help?
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4.6k
Oct ’25
Xcode 26.1 RC ( RC1 ?) Apple Intelligence using GPT (with account or without) or Sonnet (via OpenRouter) much slower
I didn't run benchmarks before update, but it seems at least 5x slower. Of course all the LLM work is on remote servers, so is non-intuitive to me this should be happening. Had updated MacOS and Xcode to 26.1RC at the same time, so can't even say I think it is MacOS or I think it is Xcode. Before the update the progress indicator for each piece of code might seem to get stuck at the very end (and toggling between Navigators and Coding Assistant) in Xcode UI seemed to refresh the UI and confirm coding complete... but now it seems progress races to 50%, then often is stuck at 75%... well earlier than used to get stuck. And it like something is legitimately processing not just a UI glitch. I'm wondering if this is somehow tied to visual rendering of the code in the little white window? CMD-TAB into Xcode seems laggy. Xcode is pinning a CPU. Why, this is all remote LLM work? MacBook Pro 2021 M1 64GB RAM. Went from 26.01 to 26.1RC. Didn't touch any of the betas until RC1.
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Oct ’25
Xcode 26 crash upon dealloc of `WKNavigationResponse` on Main Thread
Since Xcode 26 our tests are crashing due to the Main Thread not being able to deallocate WKNavigationResponse. Following an example: import Foundation import WebKit final class WKNavigationResponeMock: WKNavigationResponse { private let urlResponse: URLResponse override var response: URLResponse { urlResponse } init(urlResponse: URLResponse) { self.urlResponse = urlResponse super.init() } convenience init(httpUrlResponse: HTTPURLResponse) { self.init(urlResponse: httpUrlResponse) } convenience init?(url: URL, statusCode: Int) { guard let httpURLResponse = HTTPURLResponse(url: url, statusCode: statusCode, httpVersion: nil, headerFields: nil) else { return nil } self.init(httpUrlResponse: httpURLResponse) } } import WebKit import XCTest final class ExampleTests: XCTestCase { @MainActor func testAllocAndDeallocWKNavigationResponse() { let expectedURL = URL(string: "https://galaxus.ch/")! let expectedStatusCode = 404 let instance = WKNavigationResponeMock() // here it should dealloc/deinit `instance` automatically } Here the call stack: Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 CoreFoundation 0x101f3dd54 CFRetain.cold.1 + 16 1 CoreFoundation 0x101e14860 CFRetain + 104 2 WebKit 0x10864dd24 -[WKNavigationResponse dealloc] + 52
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Oct ’25
Is it possible to view Xcode output from a scheme's archive post actions's script
In Xcode I've: select Product / Scheme / Edit scheme tap on Archive on the left hand side of the select post actions and + to add a new script Then in there I have added a script I want to run on the archive after its created. I'd like to be able to see the output the script churns out as it goes along but doesn't seem possible? If I just add something like echo "hello" to the start of the script then I don't see "hello" visible anywhere when I build an archive (via Product/Archive). I'm looking in the build navigator. Is there somewhere else to look or is it possible to get the logging into the navigator?
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Oct ’25
Xcode_26 not compiling Metal project
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
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Oct ’25
Regarding the Deployment Targets setting for Xcode 26
Our project plans to upgrade Xcode from 16.2 to Xcode 26. We’ve noticed that the information on https://developer.apple.com/support/xcode/ states that the Deployment Targets for Xcode 26 supports iOS 15–26.1. However, the Deployment Targets for our current project is set to iOS 13. Does this mean that we must set the project’s Deployment Targets to iOS 15 or higher if we want to upgrade to Xcode 26? Can we still set the Deployment Targets to iOS 13? If we upgrade to Xcode 26 and set the Deployment Targets to iOS 13, will there be any problems?
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Oct ’25
XCPreviewAgent crashes with KERN_PROTECTION_FAILURE on macOS 26.0.1 Tahoe
Hello, I'm experiencing consistent crashes of XCPreviewAgent when using Xcode Previews on macOS 26.0.1 Tahoe (25A362). Configuration: macOS: 26.0.1 (25A362) - stable release Xcode: 16.0 (23.0.54) - stable release Hardware: MacBook Pro M4 Project: SwiftUI iOS app Issue: Every time I try to use Xcode Previews, XCPreviewAgent crashes with: Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Subtype: KERN_PROTECTION_FAILURE at 0x0000000340e54000 Termination Reason: Namespace SIGNAL, Code 10, Bus error: 10 The crash occurs in shared memory region during dynamic library loading. What I've tried: Cleared all caches: rm -rf ~/Library/Developer/Xcode/DerivedData Deleted Preview data: rm -rf ~/Library/Developer/Xcode/UserData/Previews Reset simulators: xcrun simctl --set previews delete all Switched xcode-select to /Applications/Xcode.app/Contents/Developer Tried both Xcode stable and Xcode beta Created fresh simulators Clean build (Cmd+Shift+K) Rebooted Mac multiple times The app runs fine on simulator (Cmd+R), but Previews consistently crash.
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Oct ’25
Avoid IPv6 communication when debugging with real device
We are experiencing troubles in our organization when we want to debug iOS applications on physical iPhones and iPads. Our iPhones (iPhone 16e, iOS 18.5) are not recognized by Xcode 16.4, but in the Finder they show up fine using the USB cable. We are aware, that the communication is different and there is an ad-hoc network that gets created to exchange the device profile. Together with our IT department responsible for our security infrastructure we narrowed it down to the following reason: As we are blocking all IPv6 traffic for local networking, the iPhone cannot communicate with Xcode to make the first connection and load the device profile. As they are not planning on changing this behavior, I am reaching out to you, if there is a way to force this first handshake between Xcode and iOS device to use IPv4? Or is there any other way to enable debugging for these devices? Any ideas would be very helpful.
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Oct ’25
AppleWatchのデベロッパモードをONにする方法
開発アプリで通知確認を行うため、UDIDをプロビジョニングプロファイルに追加する必要があります。 iPhoneのUDIDは取得することができたのですが、AppleWatchのUDIDを取得する方法が分かりません。 Xcodeと接続してUDIDを取得しようとしましたが、iPhoneのみ認識がされAppleWatchが認識されていません。 AppleWatchもデベロッパモードをONしなければならないとAppleから返答をもらったが、その方法がわからないのでどなたかご教授お願い致します。
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Oct ’25