I have developed a Swift macro called @CodableInit in the SwiftCodableMacro module, and I’m able to use it successfully in my main project.
Here’s an example usage:
import SwiftCodableMacro
@CodableInit // This is for Codable macros
public class ErrorMonitoringWebPlugin {
public var identifier: UUID = UUID()
// MARK: - Codable
required public init(from decoder:Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
identifier = try values.decode(UUID.self, forKey: .identifier)
}
}
However, when I try to write a unit test for the ErrorMonitoringWebPlugin class, I encounter an issue. Here's the test case:
func testCodableSubjectIdentifierShouldEqualDecodedSubjectIdentifier() {
self.measure {
let encoder = JSONEncoder()
let data = try? encoder.encode(subject)
//Here I am getting this error
Class 'JSONEncoder' requires that 'ErrorMonitoringWebPlugin' conform to 'Encodable'
let decoder = JSONDecoder()
let decodedSubject = try? decoder.decode(ErrorMonitoringWebPlugin.self, from: data!)
XCTAssertEqual(subject.identifier, decodedSubject?.identifier)
}
}
The compiler throws an error saying:
Class 'JSONEncoder' requires that 'ErrorMonitoringWebPlugin' conform to 'Encodable'
Even though the @CodableInit macro is supposed to generate conformance, it seems that this macro-generated code is not visible or active inside the test target.
How can I ensure that the @CodableInit macro (from SwiftCodableMacro) is correctly applied and recognized within the XCTest target of my main project?
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Hi everyone,
I’m hoping someone here can shed some light on what’s going on with Apple’s one-hour security delay when trying to register an iPhone for development use.
I’m currently setting up an app build using Expo / EAS and a paid Apple Developer account. Every time I scan the device registration QR code or try to authorise my iPhone as a development device, I get hit with a “security delay — try again in one hour” message.
This happens every single time, even if I wait the full hour. The device is the same iPhone I always use, signed in to the same Apple ID, and verified with 2FA.
The only thing unusual about my setup is that I’m using Starlink for internet access. Because Starlink uses dynamic IP routing and your exit node changes frequently (depending on which satellite or ground station you’re on), it looks like I’m signing in from a new location each time — sometimes even hundreds of miles apart.
It seems that Apple’s security system flags each of these as a “new login” or “new device registration,” then enforces a one-hour safety lockout. That makes it basically impossible to register my device and proceed with iOS builds or testing.
Has anyone else run into this problem while using Starlink (or other dynamic-routing connections like VPNs or cellular hotspots)?
And if so — is there any known workaround or setting to whitelist a device, stabilise verification, or bypass the repeated one-hour wait?
This feels like an over-protective security feature that doesn’t play well with modern satellite internet setups.
Any insights from the Apple engineers or other developers would be hugely appreciated.
Thanks,
Tim Lazenby
Topic:
Developer Tools & Services
SubTopic:
General
I am developing a simple watch app and I use my personal watch for development with Xcode. Personal watch is series 10 gps only.
I have two other watches that I want to use for testing the app, but not needing them to be connected to Xcode. The test watches have cellular option, and I need a cell plan per watch because the watches need to be standalone, not counting initial setup.
To get the standalone cell plan the watches need to be configured using AWFK. Here is what I have tried/current issues.
I switch between all three watches on my phone using the watch app.
Originally tried to put test watches in developer mode, thinking I would connect to Xcode, developer mode is not available when watch is setup using AWFK.
Pushed the watch app to apple connect, setup TestFlight group, added the test users and my phone user, accepted invites
TestFlight is installed on my phone, I see the testflight setup for the watch app
I set a test watch using watch app on the phone, run install for the test app from TestFlight on the phone, spinner moves for awhile then goes back to Install.
I am not able to get the watch app installed on the test watches from the phone. Is what I am attempting to do supported? I haven't found much specific documentation on this. If I pair the test watches as regular watches, set them to developer mode, can I pair them again as AWFK and will developer mode survive the switch? Or is there something really simple that I'm overlooking?
Appreciate any help that can be extended.
Hey, I am using the terminal a lot. Since I updated to Sonoma (so, really a long time ago). My prompt or more precise the hostname always changes between three states. Sometimes it is username@Macbook-Pro-of-XXX, sometimes username@MacbookPro and sometimes it's username@xxxxxxxx-yyyy-zzzz-aaaa-bbbbbbbbbbbb. The latter is probably my UUID. Does anyone have a clue why this randomly changes?
Hello,
I've encountered unexpected behavior related to version information in our app logs, and I'd like to ask for some advice.
We reviewed logs collected from a user running our app (currently available on the App Store). The logs are designed to include both the build number and the app version.
Based on the build number in the logs, we believe the installed app version on the user's device is 1.0.3.
However, the app version recorded in the logs is 1.1.5, which is the latest version currently available on the App Store.
In our project, we set the app version using the MARKETING_VERSION environment variable.
This value is configured via XcodeGen, and we define it in a YAML file.
Under normal circumstances, the value defined in the YAML file (MARKETING_VERSION = 1.0.3) should be embedded in the app and reflected in the logs. But in this case, the version from the current App Store release (1.1.5) appears instead, which was unexpected.
We'd like to know what might cause this behavior, and if there are any known factors that could lead to this.
Also, is it possible that MARKETING_VERSION might somehow dynamically reflect the version currently available on the App Store?
YAML:
info.plist:
Hello!
I am trying to automate iOS builds for my Unreal Engine game using Unreal Automation Tool, but I cannot produce a functionnal build with it, while packaging from XCode works perfectly.
I have tracked down the issue to a missing file. I'm using the Firebase SDK that requires a GoogleService-Info.plist file. I have copied this file at the root of my project, as the Firebase documentation suggests. I have not taken any manual action to specify that this file needs to be included in the packaged app.
The Firebase code checks the existence of this file using
NSString* Path = [[NSBundle mainBundle] pathForResource: @“GoogleService-Info” ofType: @“plist”];
return Path != nil;
If I package my app from XCode using Product -> Archive, this test returns true and the SDK is properly initialized. If I package my app using Unreal Engine's RunUAT.sh BuildCookRun, this test returns false and the SDK fails to initialize (and actually crashes upon trying).
I have tried several Unreal Engine tricks to include my file, like setting it as a RuntimeDependecies in my projects Build.cs file. Which enables Unreal Engine code to find it, but not this direct call to NSBundle.
I would like to know either how to tell Unreal Engine to include files at the root of the app bundle, or what XCode does to automatically include this file and is there a way to script it? I can provide both versions .xcarchive if needed.
Thanks!
For the Linux version of my application which is written in C++ using Qt, I display the CHM format help files with this code:
QString helpFile{ QCoreApplication::applicationDirPath() + "/Help/" + tr("DeepSkyStacker Help.chm","IDS_HELPFILE") };
QString program{ "kchmviewer" };
QStringList arguments{ "-token", "com.github.deepskystacker", helpFile };
helpProcess->startDetached(program, arguments);
(helpProcess is a pointer to a QProcess object)
The -token com.github.deepskystackerpart of that ensures that only a single instance of the viewer is used for any code that uses that invocation.
Are there any chm file viewers for macOS that are capable of that sort of trick? The ones I've found on the App Store give minimal information and appear to be very simple minded tools that are not not intended for integration into an application as above.
I know that MacPorts offers ports of kchmviewer but I'd prefer not to use either that or HomeBrew ...
David
Topic:
Developer Tools & Services
SubTopic:
General
I am located in Taiwan and recently updated my Mac to the latest OS and installed the newest Xcode. However, I’m experiencing extremely slow download speeds when trying to add the iOS 26.2 Simulator Runtime (approx. 8GB) via Xcode > Settings > Platforms.
It is currently downloading at a rate of only 500MB per hour, which is impractical. I have checked the official downloads page but couldn't find a standalone DMG link for this specific version.
My questions are:
Is there a direct download link (DMG) available on the Apple Developer portal for the iOS 26.2 Simulator?
If no direct link exists, are there any recommended methods to accelerate the download? (e.g., using terminal commands or changing DNS settings).
Any help or direct URLs would be greatly appreciated. Thank you!
I am encountering an issue where the application running on a physical device does not reflect the most recent source changes.
Observed behavior
On the device, the application behaves as if an older binary is running. Specifically:
Newly added debug UI labels do not appear.
The logs still show old debug prints instead of new ones.
Steps taken to ensure a clean install:
Changed the bundle identifier
Set a new display name (the app still showed the old display name when I click run).
Deleted the app manually from the device before every reinstall.
Build and install steps
Performed multiple clean builds with a fresh Derived Data path.
Built from terminal using xcodebuild (Debug configuration, physical device target, automatic provisioning).
Installed using:
xcrun devicectl device install app
Verified:
The updated source files are listed under Compile Sources and compiled from the expected path.
The bundled Info.plist includes the new bundle identifier and display name.
Installation output confirms new bundle identifier.
Question
What could cause a newly built and installed application to run with behavior from an older binary? Are there recommended ways to verify that the device is actually launching the latest installed build, and to ensure stale binaries are not being executed?
Any guidance on additional diagnostics or misconfigurations to check would be appreciated.
Topic:
Developer Tools & Services
SubTopic:
General
I am developing an Augmented Reality (AR) navigation application for the iPad, utilizing the ARCL library to place Points of Interest (POIs) in the real world.
The application's behavior varies significantly based on the device's networking configuration:
Cellular Network (Expected Behavior): On an iPad with a cellular modem, when using the cellular network, all POIs are placed accurately with correct orientation.
Wi-Fi Only (Expected Behavior): On a Wi-Fi-only model (no GPS chip), POI placement is inaccurate, confirming the need for an external GPS receiver for that hardware configuration.
Cellular + Wi-Fi (Anomalous Behavior):
The iPad is a cellular model (equipped with GNSS/GPS).
The device is connected to a Wi-Fi network (enforced via an MDM profile, preventing the user from disabling Wi-Fi).
When actively connected to this specific Wi-Fi network, the AR POIs consistently display with an incorrect orientation and placement, even though the device hardware has a dedicated GPS chip. The placement error strongly suggests that the device's determined location or heading is erroneous. It appears that the active Wi-Fi connection is somehow interfering with or overriding the high-accuracy GNSS/GPS data, leading to a flawed Core Location determination that negatively impacts the ARCL world tracking and anchor placement.
Has anyone experienced a scenario where an active Wi-Fi connection on a cellular iPad model causes Core Location to prioritize less accurate location data (potentially Wi-Fi-based location services) over the device's built-in GNSS/GPS, resulting in severe orientation errors? We observed that on Apple map(native application) as well it is showing wrong location and orientation when it is connected to WiFi
I have a Apple Developer accounts for development purposes only and that is also used for testing builds via TestFlight. Is the Age Ratings Responses updates due by the end of January 2026 still required even to send builds to TestFlight?
First time user here. Trying to build my React-Native app on xcode. I keep getting "Could not build Module" and "missing package product" and tried many combination for my Podfile.
I am on macbook pro M2, XCode version 16.2, building on iphone 16 v18.3.1. Pod version 1.16.2, react-native-cli:2.0.1,
Here is my Podfile. I tried to assign modular_headers to individual Firebase packages but then I cant pod install.
require_relative '../node_modules/react-native/scripts/react_native_pods'
require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'
use_modular_headers!
platform :ios, '18.0'
prepare_react_native_project!
target 'plana' do
config = use_native_modules!
use_react_native!(
:path => config[:reactNativePath],
:fabric_enabled => false,
:app_path => "#{Pod::Config.instance.installation_root}/.."
)
post_install do |installer|
react_native_post_install(
installer,
config[:reactNativePath],
:mac_catalyst_enabled => false,
)
end
end
We're having issues getting Sign in with Google to function on TestFlight (not experiencing these issues on iOS Browser) with user unable to be authorised and proceed to logged in screens of our app.
Below are the three sign-in methods tested and the exact results for each.
Button 1: Default
Standard Google Sign-In button (Google JavaScript SDK) embedded in the frontend.
Uses the normal OAuth browser redirect flow.
Auth URL: https://accounts.google.com/o/oauth2/v2/auth?...
Sometimes disallowed_useragent error.
Other times a 400 invalid_request error.
In most cases the callback is never triggered inside the wrapper.
Appears that the wrapper does not retain cookies/session data from the external Google window.
Button 2: Custom
Custom button calling Google OAuth through our own redirect handler.
Explicitly set a custom user-agent to bypass disallowed user agent logic.
Later removed user-agent override entirely for testing.
Added multiple ATS (App Transport Security) exceptions for Google domains.
Added custom URL scheme to Info.plist for OAuth redirect.
Changing the user-agent had no effect.
ATS exceptions + scheme support verified and working.
Redirect still fails to propagate tokens back to the WebView.
In tests a few weeks ago we got to Google’s login page, but it never returned to the app with a valid code. Now
we are consistently getting disallowed_useragent error.
Button 3: Default
Same as Button 1 however tested outside of Vue.js with just plain JavaScript.
Added new Google domain exceptions and updated redirect URIs.
Behaviour matches Button 1
Google account selection sometimes worked, however now consitently disallowed_useragent error
Additional Technical Attempts
User-Agent Modifications
Set UA to standard desktop Chrome → no effect.
Removed UA override → no effect.
ATS / Domain / Scheme Configuration
Added:
accounts.google.com
.googleusercontent.com
*.googleapis.com
Hey guys! I downloaded Apple’s Icon Composer to build my iOS 26 app icon. I exported my SVG from Illustrator (and verified it through Canva and the W3C validator). However, when I import it into Icon Composer, it looks really weird . There are these bubble-like artifacts appearing in the center.
Here's my orignal svg icon file
trace-logo.txt
Any help will be appreciated!
Best, Justin
The app I'm working on has iOS 16.0 as target. Recently Live Activities support was added, but then it started crashing when running on iOS 16.0 devices.
After some investigation, I've found that the culprit was the presence of NSUserActivityTypeLiveActivity and WidgetCenter.UserInfoKey.activityID, even though they were inside an @available(iOS 17.2, *) block. If I comment these two variables, the app work as expected. I've also tried adding #if canImport(ActivityKit) around the code, but without success.
But if the @available isn't working, how can I prevent this? It looks like a bug, since the documentation says that NSUserActivityTypeLiveActivity is supported but iOS 14.0+, but I'm pretty sure it was introduced on 16.1.
This is the only output I get with the crash:
dyld[66888]: Symbol not found: _$s9WidgetKit0A6CenterC11UserInfoKeyV10activityIDSSvgZ
Referenced from: <D6EFF120-2681-34C1-B261-8F3F7B388238> /Users/<redacted>/Library/Developer/CoreSimulator/Devices/8B5B4DC9-3D54-4C91-8C88-E705E851CA0F/data/Containers/Bundle/Application/DB6671FF-CB07-4570-BD63-C851D94FAF29/<redacted>.app/<redacted>.debug.dylib
Expected in: <C5E72BB5-533F-3658-A987-E849888F4DFC> /Library/Developer/CoreSimulator/Volumes/iOS_20A360/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 16.0.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/WidgetKit.framework/WidgetKit
In the online documentation for InstallerJS, it is stated that the unit for the availableKilobytes property of the target field is kilobytes.
Isn't it actually bytes because of a bug in the very first release of macOS that supported InstallerJS?
[Q] Has there been a fix in the recent years regarding this property that would explain why the documentation says it's kilobytes? Even though at the time of this writing, the unit is still bytes when you call my.target.availableKilobytes
I'm using this call to dump the value of this property in install.log:
system.log(my.target.availableKilobytes + '');
Ref. https://developer.apple.com/documentation/installer_js/target/1811975-availablekilobytes
(FB20448952)
Hi,
I’m trying to free up space on my computer and have uninstalled Xcode. However, I noticed that many large files remain on the filesystem even after uninstalling it.
The largest remaining files (~33 GB) are iOS Simulator images located at:
/System/Volumes/Data/Library/Developer/CoreSimulator/Volumes
I attempted to delete them using root privileges, but it seems that these system files are mounted as read-only.
I’m reaching out to ask for guidance to ensure that these files do not contain anything important for macOS, and that it’s safe to remove them before getting in recovery mode.
Thank you very much for your advice!
I'm trying to authenticate to a git host using SSH keys stored in 1Password. I have ~/.ssh/config with mode 600 set with a symlink:
Host *
IdentityAgent "~/.1password/agent.sock"
But ssh-add -l shows no identities. If I set $SSH_AUTH_SOCK, ssh-add -l works just fine. I'd love to not have to do this, though.
Why doesn't ssh-add seem to read ~/.ssh/config? The built-in version is OpenSSH_10.0p2, LibreSSL 3.3.6.
I've searched fruitlessly for an answer anywhere else.
I'm attempting to create a proof of concept of a static library, distributed as an XCFramework, which has two local XCFramework dependencies.
The reason for this is because I'm working to provide a single statically linked library to a customer, instead of providing them with the static library plus the two dependencies.
The Issue
With a fairly simple example project, I'm not able to access any code from the static library without the complier throwing a "No such module" error and saying that it cannot find one of the dependent modules.
Project Layout
I have an example project that has some example targets with basic example code.
Example Project on Github
Target: FrameworkA
Mach-0 Type: Dynamic
Build Mergable Library: Yes
Skip Install: No
Build Libraries For Distribution: Yes
Target: FrameworkB
Mach-0 Type: Dynamic
Build Mergable Library: Yes
Skip Install: No
Build Libraries For Distribution: Yes
XCFrameworks are being generated from these two targets using Apple's recommendations. I've verified that the mergable metadata is present in both framework's Info.plist files.
Each exposes a single struct which will return an example String.
Finally I have my SDK target:
Target: ExampleKit
Mach-0 Type: Static
Build Mergable Library: No
Create Merged Binary: Manual
Skip Install: No
Build Libraries For Distribution: Yes
The two .xcframework files are in the Target's folder structure as well. The "Link Binary With Libraries" build phase includes them and they're Required.
Inside of the ExampleKit target, I have a single public struct which has two static properties which return the example strings from FrameworkA and FrameworkB.
I then have another script which generates an XCFramework from this target.
Expectations
Based on Apple's documentation and the "Meet Mergable Libraries" WWDC session I would expect that I could make a simple iOS app, link the ExampleKit.xcframework, import ExampleKit inside of a file, and be able to access the single public struct present in ExampleKit. Unfortunately, all I get is "No such module FrameworkA".
I would expect that FrameworkA and FrameworkB would have been merged into ExampleKit? I'm really unsure of where to go from here in debugging this. And more importantly, is this even a possible thing to do?
Hi all,
I'm trying to integrate Apple’s DeviceCheck API into my Flutter iOS app. I already have everything set up on the backend — the Apple private key, key ID, team ID, and DeviceCheck capability. The backend is generating and signing the JWT correctly and making requests to Apple.
However, I’m currently stuck on the frontend (Flutter):
👉 How can I generate the device_token required by the DeviceCheck API (via DCDevice.generateToken) in a Flutter iOS app?
I understand that DCDevice.generateToken() must be called from native Swift code. I previously attempted to use a MethodChannel to bridge this in Swift, but would prefer not to write or maintain native Swift code if possible.
I've looked for a prebuilt Flutter package to handle this, but nothing exists or is up-to-date on pub.dev.
Main Question:
Is there any Apple-supported way to generate the device_token for DeviceCheck from a Flutter app without writing Swift code manually?
If not, is DCDevice.generateToken() the only possible approach, and must I implement this via Swift and Flutter platform channels?
Thanks!