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Immediate crash of Apple Watch simulator when typing a key
I get a crash in Apple Watch simulator (Series 9 45mm 18.0) as soon as the app launch if I type anything on external keyboard (just hitting command key for instance to capture a screenshot). Same crash on series 7 (45mm, OS 18.1) But app works normally when I use mouse to interact with the app on simulator. App does not crash on real device (Watch 4 OS 10.4.1). Nor does it crash on Series 6 simulator (44 mm OS 17.4). Here are the log I could collect (apparently, they contain sensitive language !!! so I attach as a file.: Attached logs
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439
Mar ’25
Unable to start podman, the error is: NSLocalizedFailure = "Internal Virtualization error."
This morning I installed podman on my new Apple laptop. It can be inited successfully but failed to start. The error is: Error: Error Domain=VZErrorDomain Code=1 Description="Internal Virtualization error. The virtual machine failed to start." UserInfo={ NSLocalizedFailure = "Internal Virtualization error."; NSLocalizedFailureReason = "The virtual machine failed to start."; My new Mac laptop with the latest OS version: 15.3.1 and it is Apple M4 chip. I verified that my Virtualization.framework is good by ls -l /System/Library/Frameworks/Virtualization.framework also my MacOS support virtualization because sysctl kern.hv_support returns kern.hv_support: 1. I tried to install it on my old Apple laptop which is intel core, same OS version - everything is good. How to fix this issue?
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479
Mar ’25
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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474
Dec ’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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2w
Error build expo EAS
I'm trying to create a new build from VSC through EAS (expo) but it's failing and returning the error I'm attaching. I'm running the command eas build --profile preview --platform ios. I have an "App Manager" account, my colleague has the same role and he can do builds normally. I have other permissions and accesses ok, as can be seen in the attached picture, but apparently I have the issue in "register bundle identifier". Does anyone faced the same issue? How can I solve this? What step I'm missing? Thanks in advance!
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225
May ’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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356
Mar ’25
Security warning while installing .pkg file in mac OS desktop
We have a macOS application packaged as a .pkg file. To notarize it, we first code-sign individual library folders and the .app bundle using the following command: codesign --force --deep --sign "Developer ID Application: <Our Account Name>, LLC (Team ID)" "Our_product.app" Code Sign result for .app file: Our_prodcut.app: valid on disk Our_product.app: satisfies its Designated Requirement We are using packages tool to create .pkg file with code signed .app file. Steps followed once .pkg file is ready: 1. Product Sign: productsign -sign "Developer ID Installer: <Our Account Name>" output.pkg signed-output.pkg 2. Submit for notorization: `xcrun notarytool submit signed-outout.pkg --keychain-profile "notarytool-password" --wait Received following output: Current status: Accepted................................. Processing complete id: 2d5c450f-5b22-4b4d-9579-ef21c0356548 status: Accepted Transferred Notarization log: xcrun notarytool log 10169892-b28c-407c-b348-edab0b34ef34 --keychain-profile "notarytool-password" Desktop/developer_log_6.json We have observed log with "Accepted" status with issues as "null". 3. Stapler: stapler staple signed-output.pkg stapler validate signed-output.pkg Processing: signed-output.pkg The validate action worked! 4. Checking status of .pkg file: Command: spctl --assess --verbose=4 signed-output.pkg Output: signed-output.pkg: rejected source=no usable signaturess Warning During Installation: While installing the .pkg file, a security warning appears as follows. Please help us to resolve this.
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288
Apr ’25
Swift Test Parameterized Test
Is anyone seeing flaky results when using parameterized test with pairs of (input, result) data? I have several (5) tests for a given method. I create a zip sequence by zip([in1, in2, in3, in4, in5],[out1, out2, out3, out4, out5]) Sometimes, the test only runs 4 of the tests and fails to report a failure even though I deliberately place data that should cause a failure. Sometimes, even though I only select one test to run, the test explorer goes crazy into a loop and I have to clear test results to get it to stop. Following a suggestion, I disabled running tests in parallel. Xcode 16.2 / OSX 14.7 (Sonoma) / Mac mini M2 Pro
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401
Feb ’25
Native Git version with Apple Build
By default, it seems 15.6 is shipped with git version 2.39.5 (Apple Git-154) I was wondering when Apple will ship a Git version above 2.43 to resolve this vulnerability. Git Carriage Return Line Feed (CRLF) Vulnerability (CVE-2025-48384) https://github.com/git/git/security/advisories/GHSA-vwqx-4fm8-6qc9 You can install Homebrew then install newer versions of git using Homebrew; however that installs in a new location so the vulnerability is still present as the native version is behind and updated by Apple during software updates Thanks
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267
Aug ’25
Assets.car not being built as part of the archiving and distribution process
I am working on a MAUI application. When I go to archive my build to then release it, my bundle is not including the Assets.car file that apple is seemingly expecting for handling the app icons, which is leading to issues trying to publish my app. The assets are in a AppIcon.appiconset folder in my project (under Platforms>iOS>Resources) with a proper Contents.json file also in there. They are setup as a BundledResource (also have tried ImageAssets for the build type but with the same issue occurring). I am using visual studio 2022 on Windows 11 paired with a Mac (Sequoia 15.5) and Xcode 16.4. I have even tried manually compiling the asset catalog from xcode16.4 and trying to use terminal commands to have actool create the Assets.car but that runs with no files created to the output destination as well as no errors. I believe there may be an issue with actools in my Xcode copy. I have tried uninstalling and reinstalling with no luck. Any suggestions or tips?
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187
Jul ’25
Swift Testing environment differences from regular executable
I am working on a Swift package which uses CoreAudio, and includes some tests in a testTarget which use the Testing framework, and a couple of executableTarget targets which exercise the same code. I'm using Xcode 16.2 on macOS 15.3.1. One of the things I do in the test code is create a HAL plugin, then find that plugin using the kAudioHardwarePropertyTranslateUIDToDevice. Finding the plugin that I just created always fails from within a Swift Testing test, unless I run the test which creates the plugin individually first, then separately, run the test which finds the plugin, by clicking on the little arrows next to the function names. If I put the tests in a serialized suite (so creation always happens first, then finding), running the suite always fails - it creates the plugin, but can't find it. If I run the 'find my plugin' test again manually, it is always found. If I call the same functions from a regular executable (the thing created by a "executableTarget" in my .package.swift file), the just-created plugin is always found. Is there a way to mimic the runtime environment of a regular executable in a Swift Testing target, or am I misunderstanding something? this my be related to this issue: https://github.com/swiftlang/swift/issues/76882 but I don't understand it well enough to be sure.
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511
Feb ’25
Command line compilation problem, standard includes not found
This example fails to compile on Sequoia 15.4 with Xcode 16.3 and the command line tools installed; jacquesmenu@macstudio:C++Tests > cat pcount_test.cpp // clang++ -std=c++17 -o IntWrapperTest IntWrapperTest.cpp #include // std::string #include // std::cout #include // std::ostringstream int main1 (int argc, char* argv[]) { std::string theString = "Prière d'éviter"; std::cout << theString << ", size(): " << theString.size () << std::endl; std::stringstream oss; oss << theString << std::endl; std::cout << oss.str () << ", pcount(): " << oss.pcount () << std::endl; } //_______________________________________________________________________________ // position in output stream #include // std::ofstream int main () { std::ofstream outfile; outfile.open ("test.txt"); outfile.write ("This is an apple",16); long pos = outfile.tellp(); outfile.seekp (pos-7); outfile.write (" sam",4); outfile.close(); return 0; } jacquesmenu@macstudio:C++Tests > clang++ pcount_test.cpp pcount_test.cpp:3:10: fatal error: 'string' file not found 3 | #include // std::string | ^~~~~~~~ 1 error generated. The same occurs with iostrem if it is the first include mentioned. Compiling in Xcode itself does not this problem, though. This include is to be found here: jacquesmenu@macstudio:C++Tests > xcode-select -p /Applications/Xcode.app/Contents/Developer jacquesmenu@macstudio:C++Tests > ls -sal /Applications/Xcode.app/Contents/Developer/**/string | grep MacOSX 72 -rw-r--r-- 10 root wheel 203802 Mar 8 06:17 /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/string
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127
Apr ’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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200
Sep ’25
Issue with Custom element
Hi, We are seeing the below error in our angular application where we use the custom elements. Can you please help us to resolve the issue? [Error] TypeError: new.target does not define a custom element. The same code works fine in other browsers.
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241
Feb ’25
Unexpected performance penalty attributed to first Swift Testing test
I have a Swift package with a test suite that contains some tests implemented with Swift Testing. Locally, they run quickly, but when I run them on Semaphore CI (https://semaphore.io), the first Swift Testing test to execute incurs a performance penalty. I'm running the tests with xcodebuild on iOS Simulator: xcodebuild test \ -scheme "Scheme" \ -workspace Workspace.xcworkspace \ -destination "platform=iOS Simulator,name=iPhone 16,OS=18.2" The scheme is configured to use a test plan that has parallelization disabled. Here's an excerpt from the output showing what I'm seeing: Test Suite 'All tests' started at 2025-04-03 07:47:37.328. ◇ Test run started. ↳ Testing Library Version: 102 (arm64-apple-ios13.0-simulator) ◇ Iteration 1 started. ◇ Suite <redacted> started. ◇ Test foo() started. ✔ Test foo() passed after 23.063 seconds. When foo() is not the first test it runs in under 100 ms. The reason that I have parallelization disabled is that I was initially seeing all of the tests in this suite incur a performance hit. But now it's clear that there must be some startup cost. Things I'm wondering: What is this startup penalty? Why don't I encounter it locally? Why is it attributed to the first test? (this seems like a bug) My wild guesses around 1 so far have been… maybe some simulator clone is booting. I've tried to rule that out by disabling parallelization, but maybe there's still something there. maybe swift testing is getting loaded lazily and there's some kind of dynamic linking cost Thoughts on 2… maybe there's some one-time penalty when using swift testing that I've already incurred locally but that has not yet been incurred in the CI image Guidance welcome! x-posted: FB17102970 (Unexpected performance penalty attributed to first Swift Testing test) https://forums.swift.org/t/first-swifttesting-test-always-slow/79066
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135
Apr ’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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274
Mar ’25
When I build binutils, I get a compile error.
When building binutils (2.4.4) on Mac OS Sequoia (15.4), a compilation error occurs. In file included from ../../zlib/gzguts.h:21: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/stdio.h:61: /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:318:7: error: expected identifier or '(' 318:7: error: expected identifier or '(' 318 | FILE | FILE fdofdopen(int, cpen(int, const char onst char ) __DARWI) __DARWIN_ALIN_ALIAS_STARTIAS_STARTING(__MAC_NG(__MAC_10_6, __I10_6, __IPHONE_2_0PHONE_2_0, __DARWI, __DARWIN_ALN_ALIAS(fIAS(fdopen)); dopen)); | ^ | ^ ../../zlib/zutil.h:147:33: note: expanded from macro 'fdopen' 147 | # ../../zlib/zutil.h:147:33: note: expanded from macro 'fdopen' 147 | # define define fdopefdopen(fd,moden(fd,mode) NULL /) NULL / No f No fdopen() *dopen() */ | ^ / | error.txt In 1311 Line.
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468
Apr ’25
Change the OSLog level that is written to Xcode console of a dependent library
I'd like to give control to the app developer that uses my library to select which level of logs they'd like to see from my lib (e.g. do they want to see all debug messages or just errors). I know there are filtering controls that Xcode gives us, but I'm wondering if there is a way to pull this off with code. Ideally the user callsite would look like MyLib(logLevel: .info). And then I would pass that info level somehow to OSLog. Today, I create my logger like this: let myLogger = Logger( subsystem: Bundle.main.bundleIdentifier ?? "UnknownApp", category: "MyLibrary" ) As far as I can tell, there is nothing I can then pass to my myLogger instance to configure the threshold level. I'm imagining an interface like: myLogger.logLevel(.warning) // Later... myLogger.debug("You won't see this") myLogger.error("But you will see this") Does OSLog and friends give us any ability to do this out of the box, or are we building little wrappers around OSLog to accomplish this? Thank you, Lou
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454
Mar ’25