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Will Icon Composer support development of tvOS and visionOS icons?
In the beta of Icon Composer, I see macOS, iOS, and watchOS icons, but there is nothing about visionOS and tvOS. Those icons are particularly hard and it would be great if this app worked for developing icons for all Apple platforms. I tried asking this in a WWDC group lab, but they didn't get to it and suggested posting to the forum.
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138
Oct ’25
memory leak in dlopen / dlcose, or user error?
Calling dlopen then dlclose causes an increase in the amount of memory used by the program. If I create a loop that calls dlopen / dlclose repeatedly on the same dynamic library, memory usage increases continuously. Is this a bug, or am I using dlopen / dlclose incorrectly? I can reproduce this by modifying the sample code in the Apple Developer docs Creating Dynamic Libraries. If I modify Runtime.c, changing the line void *lib_handle = dlopen(lib_name, RTLD_NOW); to add the infinite loop, as below: void *lib_handle = dlopen(lib_name, RTLD_NOW); for (int ii = 0; ; ++ii) { printf("loop %i\n", ii); int close_err = dlclose(lib_handle); printf("close error: %i\n", close_err); printf("dlopen(%s, RTLD_NOW)\n", lib_name); lib_handle = dlopen(lib_name, RTLD_NOW); } then opening and closing the dynamic library will succeed, but memory usage (as reported by top) will rapidly increase. I'm running on x86_64 macOS 13.6.6. Full code for the modified Runtime.c is attached, the rest of the code is available in the Apple Developer docs. Any suggestions? Many thanks, Chris Runtime.c
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XCFramework with Common Third-Party Dependencies Causing Duplicate Symbol Conflicts
What is the recommended approach for distributing an XCFramework that uses common third-party dependencies (like Google Maps) when client apps may also use the same dependencies, resulting in duplicate symbol conflicts? I'm developing a closed-source SDK distributed as an XCFramework. My SDK internally uses Google Maps for mapping functionality. However, when clients integrate my XCFramework into their apps that also use Google Maps, we encounter duplicate symbol errors. What I've Tried: Static vs Dynamic Linking: Both approaches result in conflicts Static linking: Google Maps symbols compiled into my binary Dynamic linking: GoogleMaps.framework bundled with my XCFramework Build Configuration: Set "Build Libraries for Distribution" = YES Tried various linking strategies Architecture Changes: Used @implementation_only import Wrapped code with #if canImport(GoogleMaps) However, the dependencies still get linked at build time
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Skadnetwork
Certainly! Below is a structured report you can use to submit to Apple Developer Support, Feedback Assistant, or share with the ad network for escalation. This report is tailored based on the logs and forensic analysis we’ve conducted. Structured Report: SKAdNetwork Attribution Failures Subject/Title: Critical SKAdNetwork Attribution Failures (Bug Type: 237, Failure Type: 1201 in ASDErrorD We are encountering repeated SKAdNetwork attribution failures (failureType: 1201 in ASDErrorDomain) for ad impression events processed through the ad network mj797d8u6f.skadnetwork. These failures are causing significant revenue losses, as ad impressions are not being properly attributed to installs. The issue occurs across multiple campaigns and involves both SKAdNetwork API 3.0 and 4.0, suggesting a systemic problem with attribution validation or network communication. This problem is critical as it disrupts advertisers’ ability to track conversions, optimize campaigns, and allocate budgets effectively. Technical Details Key Logs: Below are anonymized samples of the failed SKAdNetwork events: Log Sample 1 (Failure): { "bug_type": "237", "timestamp": "2025-01-07 22:49:15.00 -0500", "os_version": "iPhone OS 18.2.1 (22C161)", "roots_installed": 0, "incident_id": "78523BD9-1F58-4738-B526-8A8A63203214" } { "advertisementStoryId": "3D2E7EBB-1A57-4DF8-9375-2C465F423038", "apiVersion": "3.0", "eventType": "adImpression", "resultType": "finalized", "anonymous": true, "failureType": 1201, "failureDomain": "ASDErrorDomain", "clientEventId": "0F456623-584F-4913-BBD3-C3FD1219D104", "os": "iOS", "topic": "xp_amp_skad_perf", "adType": "app", "adNetworkId": "mj797d8u6f.skadnetwork", "eventTime": 1736305200000, "osBuildNumber": "22C161", "hardwareFamily": "iPhone", "api": "SKAdNetwork" } Log Sample 2 (Failure): { "bug_type": "237", "timestamp": "2025-01-07 22:49:15.00 -0500", "os_version": "iPhone OS 18.2.1 (22C161)", "roots_installed": 0, "incident_id": "0CBF612D-F0D9-449E-A34E-DE2DB92BEC0D" } { "advertisementStoryId": "946E568C-D2C1-478F-BFF3-4996C48F9B39", "apiVersion": "3.0", "eventType": "adImpression", "resultType": "finalized", "anonymous": true, "failureType": 1201, "failureDomain": "ASDErrorDomain", "clientEventId": "1A3D48FB-4452-4FD8-BB25-1195470A53DC", "os": "iOS", "topic": "xp_amp_skad_perf", "adType": "app", "adNetworkId": "mj797d8u6f.skadnetwork", "eventTime": 1736298000000, "osBuildNumber": "22C161", "hardwareFamily": "iPhone", "api": "SKAdNetwork" } Log Sample 3 (Success Example for Comparison): { "bug_type": "237", "timestamp": "2025-01-07 22:49:15.00 -0500", "os_version": "iPhone OS 18.2.1 (22C161)", "roots_installed": 0, "incident_id": "BFEAC86B-8195-4DB0-96FF-2028107256AD" } { "advertisementStoryId": "946E568C-D2C1-478F-BFF3-4996C48F9B39", "apiVersion": "3.0", "eventType": "adImpression", "resultType": "finalized", "anonymous": true, "clientEventId": "F6265488-E0FB-448A-A406-3F7254BCA9D7", "os": "iOS", "topic": "xp_amp_skad_perf", "adType": "app", "adNetworkId": "mj797d8u6f.skadnetwork", "eventTime": 1736294400000, "osBuildNumber": "22C161", "hardwareFamily": "iPhone", "api": "SKAdNetwork" } Failure Details: • Failure Type: 1201 • Failure Domain: ASDErrorDomain • Ad Network ID: mj797d8u6f.skadnetwork • API Versions Affected: 3.0, 4.0 • Timeframe of Failures: All logs occur within 2025-01-07 22:00:00 UTC to 23:00:00 UTC. Environment: • OS Version: iOS 18.2.1 (Build 22C161). • Device Type: iPhone (hardwareFamily: iPhone). • App Configuration: Includes the ad network ID in the Info.plist under SKAdNetworkItems. Impact Details Financial Loss: • Based on failure rates, we estimate $20–$65/day per advertiser for small campaigns and $75–$375/day per advertiser for larger campaigns. • If 100 advertisers are affected, daily losses range from $2,000–$37,500. • Over a week, losses could exceed $70,000 to $262,500 or more. 2. Operational Impact: • Advertisers cannot track installs or optimize campaigns, leading to inefficient ad spending and potential budget reallocation to other networks. • Damaged trust between advertisers and the ad network. 3. Reputation Risk: • Continued failures harm the credibility of the SKAdNetwork framework, critical in a post-ATT (App Tracking Transparency) ecosystem. Steps to Reproduce Serve an ad impression through the ad network mj797d8u6f.skadnetwork. Monitor SKAdNetwork attribution for that impression. Observe repeated failures (failureType: 1201) despite the resultType: finalized status. Recommendations for Investigation Attribution Timeout: • Verify if these failures stem from delayed responses or missed attribution windows. 2. Ad Network Configuration: • Confirm the ad network’s integration complies with SKAdNetwork API 3.0 and 4.0 requirements. 3. Infrastructure Review: • Investigate potential bottlenecks or failures in Apple’s attribution servers (ASDErrorDomain) or communication delays. Contact Details • Name: [Your Full Name] • Role: [Your Role] (e.g., Ad Network Analyst/Developer) • Organization: [Your Company Name] • Email: [Your Email Address] • Phone: [Your Phone Number] Submission Instructions You can submit this report via the following channels: • Apple Feedback Assistant: Feedback Assistant • Bug Reporting Tool: Bug Reporting • Apple DTS: Developer Technical Support This structured report should provide Apple with all the necessary details to investigate and resolve the issue effectively. Let me know if you’d like help customizing it further!
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729
Jan ’25
Crash reports downloaded by Xcode contain impossible call hierarchy
I was just having a look at some crash reports downloaded by Xcode, and I noticed the same wrong pattern I already mentioned here: the crash reports indicate that method A calls method B, which is impossible. In the first crash report below, method MainViewController.showSettings seems to be called by ConfirmMoveViewController.openSourceInFinder, which is impossible. ConfirmMoveViewController.openSourceInFinder is a context menu action in a modal window, and MainViewController.showSettings is in a completely different window and the two methods have no relation whatsoever. In the second crash report below, MainViewController.setSortMode is triggered by the press of a button (and nothing else) but seems to be called by OtherViewController.copy that can be triggered by a context menu (or keyboard shortcut). The two methods have no relation whatsoever. The rest of the stack trace confirm that it's indeed the button that was pressed. This seems to me like a quite serious bug in how macOS creates crash reports. 1.crash 2.crash
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325
Mar ’25
Error Message - Rork Publishing in Apple IOS
Hi, I keep getting an error message when I try to publish my App made with Rork into Apple IOS. Message reads "Submission failed: Submission failed. Contact support. Don’t dump it on Rork — it won’t fix this. We still need a human." Any help with this would be appreciated. I am using Microsoft edge and have also used Google Chrome.
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59
Nov ’25
Not seeing any recent crash reports although there should be some
For my app Find Any File, of which both releases and TestFlight betas were released many times, the TestFlight page tells me that several users have submitted crash reports. And I'm sure the same is true for the MAS releases: (Yes, this shows quite recent ones, but I've seen similar supposed crash report submits in this list before.) However, the actual "Crashes" listing on the appstoreconnect sites hasn't show any new crash reports for many months now: (This is the entirety of crash reports I can get listed, even when removing all filters.) Something appears to be stuck, on Apple's end. The same issue is with Xcode's Organanizer window, for "Crashes": It also used to list only the same very old reports and nothing since May 2024. And just now, when I retried this in Xcode, I'm shown a weird error message I never saw before: Error Downloading Crashes List An error occurred… Access Restricted with adam id: 1207815783 And yes, I'm logged in just fine, under Prefs / Accounts. How am I going to get this investigated? I had already sent an email about this to the Review team, who didn't react to it at all. DTS is only for Code level support, which this isn't. Any help?
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685
Apr ’25
IOS dylib to vision pro (Unity)
Hi, I am trying to bring an existing Unity app to vision pro, and am trying to make all of the librairies compatible (the project loads native libs at runtime). For some of them, there is an arm64 IOS .framework file that seems to build and be found easily in the device, but for one of them I only got a .dylib. When building on xcode, it tells me it can't find it. So I added it to the lib search path in build settings, and it built. But on the device, it still can't seem to find the .dylib : Library not loaded: ./libpdfium.dylib Referenced from: <59B1ACCC-FFFD-3448-B03D-69AE95604C77> /private/var/containers/Bundle/Application/0606D884-CB09-44CA-8E4F-4A309D2E7053/[...].app/Frameworks/UnityFramework.framework/UnityFramework Reason: tried: '/usr/lib/system/introspection/libpdfium.dylib' (no such file, not in dyld cache), './libpdfium.dylib' (no such file), '/usr/lib/system/introspection/libpdfium.dylib' (no such file, not in dyld cache), '//libpdfium.dylib' (no such file) I am not used to Apple environment, is there a way to correctly reference this .dylib (not talking about compatibility here, just the first "lib found" step) ? Thanks.
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471
Feb ’25
If you have code to package as a framework which has a 3rd party dependency, what can you do given that iOS doesn't support umbrella frameworks
I've got a large and complex app which has several dependencies upon 3rd party libraries (installed as pods). The app is structured according to Model-View-Controller design and there is a requirement to implement the Model part as an .xcframework so it can be included and used in the original app along with a few new apps. However, Apple documentation states that umbrella frameworks are not supported (Technical Note TN2435). The Model code has several dependencies which would be totally unfeasible to replace or remove, for example it uses RealmSwift for database storage. Obviously it would be impossible to write one's own database storage scheme in place of using Realm. However, if my framework uses Realm as a dependency, then its now become an umbrella framework. So therefore not supported according to Apple documentation. So what are options/solutions?
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565
Nov ’25
My Apple developer certificates expire soon. Is it necessary to create new certificates?
My Apple developer certificates(4 certificates) expire soon. I'm developing an application for iOS but the application is not yet released in the App Store, only Testflight releases for private testing. Is it necessary to create 4 new certificates or can I edit the current certificates so that they don't expire soon?
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89
Oct ’25
When creating a nested framework, most but not all symbols found
I've got an app where I want to split its Model code into a framework (.xcframework and .framework for debugging) so that it can be used by more than one app. The code has dependencies on 3rd party code, which are installed via pods. During the conversion process I keep running into the same issue which manifests with all the 3rd party code - which is that the majority of its api can be used (something like 80-90%) but for the remainder there is a linker error at runtime showing undefined symbols. I have this problem with CocoaLumberjack,RealmSwift, PhoneNumberKit and more. Its very quick and easy to reproduce the issue with a minimal framework and minimal app, below I'll describe how a minimal setup using CocoaLumberjack reproduces the issue: From scratch, I use Xcode to create a framework project, run pod init, then modify the pod file to be: platform :ios, '16.0' workspace 'TheFramework' project 'TheFramework' target 'TheFramework' do use_frameworks! pod 'CocoaLumberjack/Swift', '3.8.5' end post_install do |installer| installer.pods_project.targets.each do |target| target.build_configurations.each do |config| config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '16.0' config.build_settings['BUILD_LIBRARY_FOR_DISTRIBUTION'] = 'YES' end end end Then I add source code: import Foundation import CocoaLumberjack public class AClassInTheFramework { public class func aMethod() { let consoleLogger = DDOSLogger.sharedInstance DDLog.add(consoleLogger, with: .debug) DDLogDebug("Some logging") } } Within the Xcode project, Build Libraries for Distribution is set to Yes, I also add that line to the pod file in case CocoaLumberjack isn't set similarly. In the Framework's Xcode General section, Frameworks and Libraries contains Pods_TheFramework.framework set to Do Not Embed. In the Build Phases section, in the Link Binary with Libraries section, Pods_TheFramework.framework is set to required. Next I create an Xcode app template, run pod install, and edit the app pod file to be: platform :ios, '16.0' workspace 'AppUsingFramework' project 'AppUsingFramework' target 'AppUsingFramework' do use_frameworks! pod 'CocoaLumberjack/Swift', '3.8.5' end post_install do |installer| installer.pods_project.targets.each do |target| target.build_configurations.each do |config| config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '16.0' end end end I build the framework, and drag and drop it into the app. I add the following code to the app's delegate: import TheFramework ... AClassInTheFramework.aMethod() The App's target has the following linkage settings: When I build and run the app, there is the following error: If I change the source code in the framework to this: public class AClassInTheFramework { public class func aMethod() { let consoleLogger = DDOSLogger.sharedInstance DDLog.add(consoleLogger, with: .debug) // DDLogDebug("Some logging") } } Then there is no error and the code runs successfully. This illustrates the problem I've encountered with all the nested frameworks - in this particular case calls to DDLog.add() don't result in an error but calls to DDlogDebug() do, and that has been mirrored with other nested frameworks (for example with Realm, opening a database, adding, finding,retrieving an item all works without a problem, however attempting to use Realm's Results<> API results in a similar symbol not found error). Additionally note that the identical CocoaLumberjack code can run fine when used directly from within the app, i.e., if I add the following code to the app: import CocoaLumberjack func useCocoaLumberjackDirectlyFromWithinApp() { let consoleLogger = DDOSLogger.sharedInstance DDLog.add(consoleLogger, with: .debug) DDLogDebug("Some logging") } useCocoaLumberjackDirectlyFromWithinApp() Then it runs, i.e. DDLogDebug() can be successfully called from within the app, its only when its called via the framework that the error occurs. Why might I be encountering these issues? I'd have thought either I'd be able to use 100% of the nested framework's public api, or 0% of it (is something is not configured correct), not ~80% which is what I am encountering. Any ideas? TIA
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254
Mar ’25
Debugging Mail extensions
I'm trying to rewrite an old AppleScript mail rule that I used extensively as a Mail extension using the MailKit framework and I've run into an issue. Previously, when developing the script, it was possible to debug it by selecting the message I wanted it applied to and choosing the Mail.app menu item "Message/Apply Rules" This would re-execute my script and I could iterate over it as many times as I liked while developing. I haven't found any great way of doing this for my extension with a MEMessageActionHandler. The closest I've found is to forward the message to myself and wait for it to come back in again over the internet, at which point the extension would get executed again. Needless to say, this makes debugging my MEMessageAction handler much slower. I've tried a number of things in Mail.app to try and get it to re-execute my extension with a particular message without any luck. Does anyone know of a good process for debugging a MEMessageActionHandler that doesn't involve forwarding the message to myself over and over and waiting for it to come in each time?
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135
Mar ’25
iOS device not showing in devicectl list
I have one iOS device running iOS 16.7.10. When I run xcrun devicectl list devices I can't see that device at all. Is that know limitation (devicectl only work in iOS 17 and above) or is something wrong with my setup. Also is there some documention about devicectl. I can't seem to find anything about in the offical apple sites.
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1.2k
Feb ’25
Simulate Background Fetch Not Working on Real Device, Works on Simulator
Hello Apple Support, I’m facing an issue with Background Fetch in my React Native project. When I click on Simulate Background Fetch in Xcode, everything works as expected on the iOS Simulator—background tasks run smoothly, and data is fetched without issues. However, on a real device, the app goes to the background but doesn’t execute any of the scheduled background tasks, and it also remains in the background without terminating. Here’s some additional context: React Native Project: I’m using React Native to develop this app, and the background tasks involve: Getting User Location: Fetching the user’s location in the background. API Calls: Calling an API to fetch necessary information based on the user’s location. Scheduling Notifications and Alarms: Scheduling notifications and alarms based on the API response data. Simulator vs. Real Device: In the iOS Simulator, all these background tasks trigger and function correctly when I simulate Background Fetch. On the real device, however, none of these tasks are triggered when I try to simulate Background Fetch. The app only moves to the background without performing any tasks or getting terminated. Device and Configuration Details: iOS Version: 17 Device Model: Iphone xs, Iphone 11, iphone 7 Background Modes: Background Fetch is enabled in Capabilities, and I’ve set the fetch interval to the minimum for testing. I’ve verified that all configurations are correctly set, and I’ve tried restarting the device and Xcode, but the issue persists. Is there something specific about Background Fetch that could prevent it from functioning as expected on physical devices? Any guidance on troubleshooting or additional steps would be highly appreciated. Thank you!
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1k
May ’25
iOS 18.3.1 - runtime vs version number
Not sure if this is common with releases but I've been doing some CI work recently so it's the first time I've seen this myself, When I list the runtimes installed on my machine: xcrun simctl list runtimes I notice the iOS 18.3.1 release has the below info: == Runtimes == iOS 18.3 (18.3.1 - 22D8075) - com.apple.CoreSimulator.SimRuntime.iOS-18-3 Meanwhile the other runtimes are listed as: == Runtimes == iOS 17.5 (17.5 - 21F79) - com.apple.CoreSimulator.SimRuntime.iOS-17-5 iOS 18.4 (18.4 - 22E5216h) - com.apple.CoreSimulator.SimRuntime.iOS-18-4 watchOS 11.2 (11.2 - 22S99) - com.apple.CoreSimulator.SimRuntime.watchOS-11-2 visionOS 2.3 (2.3 - 22N895) - com.apple.CoreSimulator.SimRuntime.xrOS-2-3 (Apologies for the weird formatting above, using code blocks and quote markdown condenses things down to one line for some reason) This is causing some funkiness in my CI code which I've managed to workaround, but wondered if this was a common thing, specifically the mismatch between the iOS name and the runtime version. iOS 18.3 and com.apple.CoreSimulator.SimRuntime.iOS-18-3 vs 18.3.1 - 22D8075 where the .1 has been dropped for the runtime names?
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126
Mar ’25
LibGDX/MobiVM App refuses to launch on iOS 26.0.1
Hello, currently I am having trouble releasing an app because it crashes/does not launch on iOS 26.0.1. We have uploaded apps in the past so I tried building one of them with our current toolchain. I use Xcode 16.4, Kotlin version 2.0.0, LibGDX 1.13.1 and robovm/MobiVM 2.3.23. I uploaded the build to TestFlight and tested with physical devices running iOS 18.5 and 26.0.1. It runs fine on 18.5 but refuses to launch on the 26.0.1 device. I cannot retrieve a crash log or .ips file because none is written. When I write a Console log while the app crashes/does not launch I get no hints as to why it does so. Do you maybe have additional ideas as to why it keeps not launching on iOS 26.0.1?
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187
Sep ’25
Apollo GraphQL Error – MultipartResponseParsingInterceptor.ParsingError.cannotParseResponse in SwiftUI
I'm integrating Apollo GraphQL into a SwiftUI app and encountering the following error during a query execution: result : failure(Apollo.MultipartResponseParsingInterceptor.ParsingError.cannotParseResponse) failed : The response data could not be parsed. The request hits the server, but the response fails to be parsed by Apollo. I'm using the default code generation setup and executing a simple query to fetch a list of countries. Here’s a snippet of the function: swift Copy Edit private func fetchCountries() { switch result { case .success(let graphQLResult): if let name = graphQLResult.data?.countries { print(name) } else if let errors = graphQLResult.errors { print(errors) } case .failure(let error): print("failed : (error.localizedDescription)") } } This is run on an iPhone 16 Pro simulator with iOS 18.2. Any idea what's causing the parsing error or how I can inspect the raw response for debugging? Thanks in advance!
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74
Mar ’25