When I build the app, a block symbol appears on the app icon in the Debug Area at the bottom. What is the reason for this?

I have a service that has been running on a 3x cluster of headless M1 Mac Studios since Ventura, and before that on headless Mac minis since Monterey. Now, after updating the Studios from Sonoma to Sequoia, response times have slowed to a crawl. For example, generating and sending a 150KB PDF file normally takes around 20 milliseconds. Now it takes over 15 SECONDS! The daemon code didn't change between updates. The issue seems to center around TSO on the ethernet port. Connecting via a port without TSO works as expected. But the 10 GB ethernet port on the Studio has built-in TSO. I've tried to disable TSO using sudo sysctl -w net.inet.tcp.tso=0. This works for an hour or so before the daemon eventually becomes unresponsive. At this point the daemon has to be terminated and restarted. So for now I'm having to use cheap USB-C to Ethernet adapters to connect the Mac Studios. Is there a configuration setting I'm missing for proper TSO in Network Framework?

If I do this: NSString *name = @"Jim"; NSMenuItem *menuItem = [[NSMenuItem alloc]init]; // Analyze does show localization warning when format string is used. menuItem.title = [NSString stringWithFormat:@"Hello %@",name]; I expect to get the following warning: User-facing text should use localized string macro But I don't. However if I do this: menuItem.title = @"What"; I do get the warning about localization as expected and as desired when I run Analyze. Is this considered a bug? Thanks!

When running UITests on tvOS, tabBar viewIdentifiers (UIKit) are no longer appearing. When you run the test, accessibility identifiers for tabs are no longer locatable but all other identifiers appears except for the tabs in the tabBar. In the stack trace of the debugger, if I print application, I can see all existing viewIdentifiers except those that were set for the tabs (on tvOS only). If I force an action on the simulator after the app has launched and the view appeared ie move left or right, the identifiers appears (confirmed by stack trace) and the test will continue as expected. This was not an issue in the past (no code changes). I am not sure if this appeared after updating my mac to Sequoia. But for iOS, there is no issue. This bug only appears on tvOS and specifically the tabs. Issue persists on: Sequoia 15.4.1 Xcode 16.3

The latest build MacOS 26.0 Beta 25A5316i has introduced an error with the conversion tool ProjectedMediaConversion example shown at WWDC Error. I trying recompiling, but with same error: dyld[5902]: Symbol not found: _$sSo18AVAssetWriterInputC12AVFoundationE19PixelBufferReceiverC6append_4with9isolationy9CoreVideo010CVReadOnlyeF0C_So6CMTimeaScA_pSgYitYaKFTjTu Referenced from: /Users/***/Library/Developer/Xcode/DerivedData/ProjectedMediaConversion-elcmxcasetuopvghcomowlupqnuj/Build/Products/Debug/ProjectedMediaConversion Expected in: <129D07B2-72FC-32A1-8162-0E6FD4A5DB2F> /usr/lib/swift/libswiftAVFoundation.dylib

I'm building out a number of XCUITests. At one stage in my app, we present an SKStoreReviewController to ask the user if they'd like to review the app now. All I'd like to do is dismiss the view, by hitting the "Not Now" button. Normally, for other "system" views, I'd something like this: let springboard = XCUIApplication(bundleIdentifier: "com.apple.springboard") let notNowButton = springboard.buttons["Not Now"] And then I'd do an appropriate 'wait' and tap action. But for some reason, this isn't working. Looking for advice on how to properly handle this screen.

This week I update from Xcode 16.0 to Xcode 16.4. Today I realized, that the Menu item "New Group without Folder" does no more appear, when I press the option key. I tried to find an answer with DuckDuch Go and Chat GPT, but without success. Can anyone help me, how to fix that issue? Thanks a lot.

We are experiencing networking issues in our iOS application when it is built with Xcode 16 or later. Our app includes a video conferencing feature that works reliably when built with Xcode 15 or earlier — we can sustain hour-long video sessions without interruption. However, when the app is built using Xcode 16 or higher, network connections drop after 2–3 minutes during a session. This triggers an auto-reconnect, which succeeds, but the connection drops again after another 2–3 minutes. This loop continues indefinitely. Key Details: The issue only occurs in TestFlight builds. When running the app via Xcode debugger, the issue does not occur. The issue is consistently reproducible in TestFlight builds created with Xcode 16 or later. TestFlight builds created with Xcode 15 do not exhibit this issue. All the videoconferencing runs on C and C++ code What We’ve Tried: Reviewed Xcode 16+ release notes but found no relevant changes or deprecations. Verified app configuration and entitlements. Confirmed that no app-side changes occurred between the working and broken builds. Request: We’re seeking guidance on what changes in Xcode 16+ could be affecting networking behavior in release/TestFlight builds. Any insight into relevant build settings, compiler changes, or runtime behavior differences would be greatly appreciated. Thank you in advance for your assistance.

I'm using Version 16.4 (16F6) of Xcode on macOS 15.5 (24F74) and everything was working fine until I selected an older build to branch out from. Now, Xcode cant properly know the file status as it keeps on changing it after quitting and relaunching it. The changes in the file are there and when trying to commit to the local repo it doesn't show any changes to stage. At present I'm relying on making project folder backups as a way of backing up builds. Any suggestions what can be done?

Hi everyone, I’ve been trying since yesterday to set up an Apple Watch app alongside my iOS app, but it’s not working at all. I created the app by adding a new target, selected watchOS > App, and linked it to my iOS project. When I run the Apple Watch scheme directly, the app works, but if I try to install it on my Apple Watch via the iOS app, it doesn’t work. Every time I tap install, I get a message saying that the installation failed. While reading the documentation, they mention an Info.plist file that is supposed to be generated with the watchOS app, but when I check, I don’t see any .plist file. Is that normal? Thanks for your help.

Blocker: Registering simulator runtime with CoreSimulator failed.

In many cases I’ll be talking to folks with a memory management problem and I’ll say “You should investigate this with the standard memory debugging tools.” They then turn around and ask me “What are those tools?” Well, this is what I mean: Zombies — This lets you quickly detect when an object is used after it’s been deallocated. Learn more about it in the Finding zombies section of the Instruments Help and in Investigating crashes for zombie objects. There was also an excellent WWDC video about this, namely, WWDC 2010 Session 311 Advanced Memory Analysis with Instruments. This is no longer available in the video archive but if you can find a copy it’s well worth a watch. Address Sanitizer — This is a lower-level tool that finds a variety of common memory management issues, including use after free and buffer overruns. Learn more about this in Diagnosing memory, thread, and crash issues early and the various articles it links to. There’s also a good discussion of this tool, and other Xcode runtime diagnostic tools, in WWDC 2017 Session 406 Finding Bugs Using Xcode Runtime Tools (also no longer available from Apple). Hardware memory tagging — If you have access to a device with hardware memory tagging — starting with the A19 or M5 processors — consider enabling Memory Integrity Enforcement (MIE). For the details, see Enabling enhanced security for your app or watch Secure your app with Memory Integrity Enforcement. Even if you don’t want to do that for your production app, enable it just for development by checking Hardware Memory Tagging in the Options tab of Xcode’s scheme editor. Older tools — There are a variety of older tools that might be useful in some specific circumstances. See the Enabling the Malloc Debugging Features section of the Memory Usage Performance Guidelines for more information about these. Of specific interest is libgmalloc, which is documented in a UNIX man page. For some practical examples of how to identity a memory management crash report and then investigate that crash with these tools, take a look at WWDC 2018 Session 414 Understanding Crashes and Crash Logs. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = "eskimo" + "1" + "@" + "apple.com" Revision History: 2026-03-02 Added a discussion of hardware memory tagging. 2023-05-09 Added a link to Investigating crashes for zombie objects. 2023-03-22 Removed another WWDC session video link. Made minor editorial changes. 2020-10-23 Fixed some formatting errors. 2019-10-30 Removed the link to WWDC 2010 Session 311 Advanced Memory Analysis with Instruments because it’s not long available in the archive. Refreshed all the other links. 2019-01-22 Fixed the link to libgmalloc. 2018-11-02 Updated to include a reference to WWDC 2018 Session 414 Understanding Crashes and Crash Logs. 2017-11-16 First posted.

A empty macos project created using xcode. run build failed with the following error message. nothing in detail. retry no help. seems indexing takes forever!! The Xcode build system has terminated due to an error. Build again to continue.

Hi Experts, Could you please help. Issue at high level: After Editing a View contains a Table entries, saved and hit back button to display View, Table entries are duplicated or displaying previous and current entries together. Here is my Issue in detailed. List view display, clicking on any row, would navigate to DisplayView of a record. I am displaying a table in DisplayView. DisplayView contains "row" as parameter, and it must be initialized in "init" method, where I use row.key and fetch another table (say ColorTab) using Color.Key. DisplayView contains "NavigationView", with Edit button. it displays fetched Colors. example Red and Green. when user click on Edit, it takes to EditPage. user can remove / add colors. Once user made changes, saved and hit back button. Table entries are duplicated or showing previous and current entries. Options tried, a) init method is only triggering 1st time, not triggering when back button clicked, I failed to use FetchRequest outside of init method, I tried on OnAppear too. i didn't trigger. b) Failed to use FetchRequest inside of var Body too. c) tried using viewContext.refreshAllObjects() .. it is not refreshing the table. Could you please help if there is solution for the issue. Thanks, Bhanu

I am having an issue with signing and provisioning a Vision OS app. I have an iOS app and a VisionOS app. Everything works fine on the iOS but having issues with the VisionOS. First, I am having issues with xcodebuild -exportArchive. When I run it on an archive of my VisionOS app I get ** EXPORT FAILED ** error: exportArchive No Accounts error: exportArchive No profiles for 'X' were found Where X is my bundle ID. Meanwhile the iOS app succeeds. This is on a CI machine but I confirmed the distribution provision profile for the vision OS app is installed on the machine. Even if I change the value of the -exportOptionsPlist to the one I used for the iOS project I get this error. Is the issue in the archive itself? The archives are generated from building in Unity and archiving the xcodeproject with xcodebuild archive Second, as a workaround I archived a debug ipa on my machine and uploaded this ipa to my CI machine which has the credentials to sign for distribution. I use this script as an example as how to resign the IPA: https://gist.github.com/lodalo/754a35b48d382ae99b25 I remove the CodeSignatures and codesign both .app and UnityFramework.framework. Using this resigned IPA I get this error when I try to upload to app store connect (via Transporter app and altool) errors: Validation failed (409) Missing or invalid signature. The bundle 'X' at bundle path 'Payload/Y.app' is not signed using an Apple submission certificate. To verify the signing I used codesign -dvvv --entitlements - On both the iOS and VisionOS app and they have the same values under all the Authority fields. Different profiles, of course. So the certificate I used is eligible to upload the iOS app successfully but doesn't work on the VisionOS ipa? Any help on solving any of these issues would be great so I can upload the vision OS app. Thank you!

We have started facing an issue after updating Xcode from version 15.2 to 16, we have a voip application with webview and call kit, and we have the Background Modes capabilities: Voip, Audio, Background fetch, and Background processing. We had no problem on Xcode 15, but ever since updating Xcode 16 and sdk 18, when app goes into the background during an active call, the app is suspended and no events are triggered UNTIL the app is resumed to the foreground.

We use Perforce for version control, which means that all files not checked out are readonly. Lately Xcode has started displaying a fixed sequence of these dialogs on every launch: This means it is trying to modify some readonly file within the xcodeproj. Out of our 60 subprojects this always comes up for the exact same 6. I have so far uncovered the following: It is really trying to modify the shared xcschemes and not the pbxproj. (If I set those to writable the dialog does not appear.) Actually the files are not changed if I click "Unlock", but the com.apple.provenance xattr flag is removed from them. These xcschemes are of version 1.7 while all others are 1.3. If I change them to 1.3 Xcode still wants to modify them at launch and sets them back to 1.7. This is very annoying. What is it about these xcschemes that upsets Xcode, and how can I stop these dialogs from appearing? (One workaround is to keep them checked out dumped to a changelist that I never submit, but that is error prone when I do need to make changes to those, and also is not really possible when jumping between old states of the repo to find the change that broke something.)

why my Xcode organizer can not show Hangs

I’ve developed an Apple Watch extension for an existing iOS app. When I run the app on the watch via Xcode using the simulator, everything works fine. However, when I try to install it on my iPhone, the Watch app doesn’t show it in the "Available Apps" list, so I can't install it on the watch. The Apple Watch is connected to my iPhone, and I can see other apps available for installation without any issues. I also created a brand new project with watchOS support to troubleshoot, but the same problem occurred. Any ideas on how to resolve this?

I am using objective-c to develop a custom keyboard on iPhone X to run in landscape orientation. I want my to make use of the full iPhone X screen and have my custom keyboard layout extending from left edge to right edge of the screen in landscape orientation.No matter what I try, my custom keyboard layout stays confined in the safe area.What do you recommend?Thank you