I know this post isn't going to give a lot of details, but what I experienced tonight was so completely weird that I wanted to get it posted here in case others run into it: FIRST: All was well until I made a trivial change to a large Objective-C++ module. I suddenly got the idea to look at that line in the code review pane, to see if that area of code had ever had recent modifications. But, the entire module showed up as modified -- one giant change bar, with nothing on the right side of the code review pane, no matter what commit I selected. Then I noticed that the two lines of code which had all of 4 characters edited were no longer showing any change bars. Yet, the file showed up as "modified". Still, the exact line changes were not showing in the source code navigator, even though other files showed their changes. Note I'm connected to our remote repo on github. I did some command line git checks of the local repo, and the changes were there (as yet unstaged). So -- I figured, I'm gonna ask the Apple Coding Assistant what's up. And it gave some fantastic advice, especially on how to confirm the changes really were in the repo ready to stage and commit and push. Which I did. But despite following a couple hours of wonderful suggestions, I could never get the change bars back -- for this one specific file! (yes, the file was in the repo, and in the project -- everything seemed OK with the file itself -- nothing had changed in the project, which compiled and ran perfectly with my changes). SECOND -- suddenly, the AI assistant seemed to crash Xcode. When I went to re-run Xcode, it just crashed exactly the same. The crash log indicated "Xcode is crashing inside the IDEIntelligenceChat plugin while it’s trying to “apply changes” to a Source Editor buffer". Ultimately, I needed to restart Xcode holding down the SHIFT key. I could open other projects, but not the one I had been working on. So I turned OFF apple Intelligence (thanks, ChatGPT). That allowed me to launch. It sounds like some sort of corrupt Apple Intelligence chat logs and/or caches, which ChatGPT has given me extensive suggestions for deleting. I don't have the energy to attack that tonight -- I did an additional Time Machine backup and hope to take a closer look tomorrow. Ideally -- I'd rather NOT lose all my on-going coding assistant chats for this project -- I had some ongoing suggestions I was working on. But more concerning is the weirdness with changebars affecting this one 7,000 line .mm file. It doesn't seem like there's anything that should affect those change bars for ONE FILE that is in the repo and where changes can be seen from a git diff command line operation. If it's a bug -- I can live with it. But it's worrisome. Other than that, Xcode 26.2 has been running great! Unlike 26.1, which insisted on re-compiling all 600 files in my project every time I ran/debugged, 26.2 just does the 2-6 modified files -- a perfect incremental compile. I've saved HOURS of wasted unnecessary compilation since 26.2 was released.

Where is the +, which used to be in the top right of the Xcode menu for modifiers, views etc?

Hi, I’m facing a consistent simulator boot issue that appears to start after iOS 18.2 simulator runtimes and persists in 18.6, 26.1, and 26.2. Observed behavior iOS 18.2 simulator works fine iOS 18.6 simulator does NOT boot iOS 26.1 / 26.2 simulators do NOT boot Tried everything reinstall/clear cache and all and event formatted the system Unable to boot the Simulator NSPOSIXErrorDomain Code: 4 Failure Reason: Interrupted system call Failed to start launchd_sim: could not bind to session, launchd_sim may have crashed or quit responding macOS: Sequoia Xcode: 26.1, 26.2 Machine: Apple Silicon Unable to boot the Simulator. Domain: NSPOSIXErrorDomain Code: 4 Failure Reason: Interrupted system call User Info: { DVTErrorCreationDateKey = "2025-12-26 02:19:27 +0000"; IDERunOperationFailingWorker = "_IDEInstalliP.honeSimulatorWorker", Session = "com apple CoreSimulator.SimDevice CCDECA56-4A59-491B-A830-0F3928FCD957"; } Failed to start launchd_sim: could not bind to session, launchd_sim may have crashed or quit responding Domain: com.apple.SimLaunchHostService.RequestError Code: 4 Event Metadata: com.apple. dt. DERunOperationWorkerFinished : { "device_identifier" = "CCDECAE6-4A59-491B-A830-0E3928FCD957"; "device_model" = "iPhone18, 1"; "device_osBuild" = "26.1 (23B86)"; "device_osBuild_monotonic" = 2301008600; "device_os_variant" = 1; "device_platform" = "com apple.platform.iohonesimulator"; "device_platform_family" = 2; "device_reality" = 2; "device_thinningType" = "iPhone18,1"; "device_transport" = 4; "launchSession_schemeCommand" = Run; "launchSession_schemeCommand_enum" = 1; "launchSession_targetArch" = arm64; "launchSession_targetArch_enum" = 6; "operation_duration_ms" = 1183; "operation_errorCode" = 4; "operation_errorDomain" = NSPOSIXErrorDomain; "operation_errorWorker" = "_IDEInstalliPhoneSimulatorWorker"; "operation_error_reportable" = 1; "operation_name" = IDERunOperationWorkerGroup; "param_consoleMode" = 1; "param_debugger_attachToExtensions" = 0; "param_debugger_attachToXPC" = 1; "param_debugger_type" = 3; "param_destination_isProxy" = 0; "param_destination_platform" = "com apple platform Please help on this as it got stuck. Thanks

Hi, I have started facing an issue with Xcode since updating to macOS 26.1. The debugger is not stopping at breakpoints in Objective-C code, however breakpoints in Swift file are working fine. I am using Xcode 16.4. For breakpoints in Objective-C files I have started to get this message since the OS update - 'Xcode won't pause at this breakpoint because it has not been resolved.' I have already tried cleaning derived data and build folder. I do not want to upgrade to Xcode 26. Could someone help with the fix? Thanks

When trying to launch an app built with Xcode in iOS12, differences occur depending on the macOS version on which Xcode is installed. When building with Xcode 26.2 (or Xcode 16.4) installed on macOS Sequoia, installing it on iOS 12 and tapping the app icon launches the app. When building with Xcode 26.2 (or Xcode 16.4) installed on macOS Tahoe, installing it on iOS 12 and tapping the app icon does not launch the app. The following log was displayed upon launch: Dec 15 11:46:35 xxx assertiond[58] <Notice>: Submitting new job for "com.xxx.sample" on behalf of <BKProcess: 0x10151a710; SpringBoard; com.apple.springboard; pid: 48; agency: SystemShell; visibility: foreground; task: running> Dec 15 11:46:35 xxx assertiond[58] <Notice>: Submitted job with label: UIKitApplication:com.xxx.sample[0x2dfd][58] Dec 15 11:46:35 xxx assertiond[58] <Notice>: Unable to get pid for 'UIKitApplication:com.xxx.sample[0x2dfd][58]': No such process (3) The same issue occurs with both .app and .ipa. I would like to know the technical reason behind this, if anyone knows, please let me know.

Intelligence AI powered feature fails on complex project with network error when “Reasoning” is set higher then “Low”. The visual feedback shows sending some context and answer being generated, but eventually stops with network error. Retries with “Reasoning” set higher than “Low”. won’t help, but retries or same queries with “Low” or "Minimal" reasoning always succeed. It is obvious that connectivity is not lost but looks like some kind of timeout expires and cancels the response, even not the request. Visual feedback shows the context being successfully uploaded and even shows the indicator of the answer being generated.

When I create a new tvOS game and run the default project the simulator window appears but nothing is shown. When I create a MultiPlatform Game project and run the demo project for AppleTV the simulator work correctly. I do not get any errors just a blank screen. Also clicking on the Home icon in the simulator or the actual AppleTV does nothing. Drew

Sorry if this is a dumb question. I’m still a beginner. I created an Xcode Playground app with Microphone and Speech Recognition capabilities enabled, along with a backup Info.plist. However, when running the app on Mac Catalyst, a real device, or the iOS and iPadOS simulators, it crashes right after the Speech Recognition permission popup and again after the Microphone permission popup. For extra context, the app initially worked fine in the Swift Playgrounds app, but that environment uses an outdated SDK, so it no longer supports some of the features I’ve implemented. I’m also struggling to find clear, beginner-friendly documentation that explains how AVAudioEngine works, which is making it hard to understand what’s going wrong and how to debug it.

AppsService: ResponseErrors (1): Error status: 403, code: FORBIDDEN.OFAC_UNCLEARED, title: 'This Apple Account has not been cleared by sanctions.', detail: 'This Apple Account has not been cleared by sanctions, so it cannot access this page.', id: APWYCBZ5RE3RNNIKUDMYLQXFB4

I’m seeing what looks like a change or possible bug in Xcode when creating a new Swift Playground. When I create a Swift Playground using Xcode (File → New → Playground), the project is generated without an Assets folder. I’ve reproduced this multiple times with fresh Playgrounds to rule out user error and the folder is consistently missing. Previously, new Playgrounds included an Assets catalog by default, which makes this behavior surprising.

Hi, I have a recurrent problem with an Xcode workspace that I cannot figure out how to solve: When I command-click a symbol (or press ctrl-cmd-J) to find its definition, and when that definition is in a header file belonging to a custom static library, Xcode opens a header located in the derivedData folder rather than in the project's source codes. The exact location of this file is not in the main 'Build' folder but rather in a folder that seems dedicated to indexing: derivedData/myProject/Index.noIndex/Build/Products/Debug/Include/theHeader.h Consequently the file opened by Xcode is uneditable, I have to close it and reopen the source using another method. Even when the correct header is already opened, and I try again, Xcode reopens the wrong file so that it's opened twice with different paths. In the config file of the main application project, I reference the sources of these static libraries like this: HEADER_SEARCH_PATHS = ${SRCROOT}/myLibrary1/Sources ${SRCROOT}/myLibrary2/Sources ${SRCROOT}/myLibrary3/Sources However, removing this doesn't fix the issue and I don't see any other related-settings. Any idea to fix this annoying issue would be greatly appreciated, thanks!

Hi; Here is a simple program that reads a file and counts number of 1s bits in it. The file it reads, simple.txt, is a static text file, resides in the file system, and nothing is touching it during the program execution. The file's length is 436 bytes. When the program is run in the terminal it produces consistent results. Each run counts 1329 1s bits. It behaves differently when run in Xcode. A simple command-line tool project having a single file. Running the program multiple times, via Command-R, produces something strange. That is each execution randomly produces one of two results. One is expected 1329 1s bits, another one shows 1333 1s bits. That is it counts four bits more. Again, each run randomly produces one of those two results. And it happens only when I run the program in Xcode. I tried a different sample text file and experienced the same behavior, but the difference in 1s bits count was five bits. Any idea of how this behavior can be explained? func countOnes(in byte: UInt8) -> Int { var nOnes = 0 var mask: UInt8 = 0x1 while mask != 0 { if (byte & mask) > 1 { nOnes += 1 } mask <<= 1 } return nOnes } func countOnes(in buffer: UnsafeMutableRawBufferPointer, length: Int) -> Int { var nOnes = 0 for byte in buffer[0...length] { nOnes += countOnes(in: byte) } return nOnes } var fd = try FileDescriptor.open("sample.txt", .readOnly) var buffer = UnsafeMutableRawBufferPointer.allocate(byteCount: 4096, alignment: 4) var nBytes = try fd.read(into: buffer) var nOnes = 0 while nBytes > 0 { nOnes += countOnes(in: buffer, length: nBytes) nBytes = try fd.read(into: buffer) } buffer.deallocate() try fd.close() print(nOnes) My machine Darwin MacBookPro 24.6.0 Darwin Kernel Version 24.6.0: Wed Oct 15 21:08:19 PDT 2025; root:xnu-11417.140.69.703.14~1/RELEASE_ARM64_T8103 arm64 macOS Sequoia 15.7.2 Xcode 26.1.1 (17B100) Thanks, Igor

I've been working on UI Tests for a month or two and things have been great. But I believe there was a recent update to Xcode [running Version 26.2 (17C52)] and since then about 80% of the time when I try to view the test results so I can see the screenshots and video, Xcode crashes hard and I have to open it again. I've tried cleaning the Build folder and Derived Data and all sorts of stuff like that. Restarted Xcode, restarted my computer, etc. Any idea of how I can avoid these crashes?

Our apps, such as iCMTGIS PRO, provides the ability for users to open a job file received as an email attachment. Our apps use application:openurl:option to get the URL for the job file (*.pmp). We use [URL path] to convert it to NSString format. Then we use fopen to read the .pmp job file in "read only" mode. On iPad Air (5th generation) running iOS Version 18.6.2, our apps are able to read the .pmp job file. However, on iPhone 11 running iOS: 26.2, using fopen to read the .pmp file, we get a NULL value and are not able to correctly read the .pmp file.

Hello, I’ve been experiencing a persistent issue in Xcode since version 26.0, and it is still present in 26.2. When using the split view to display two files side by side, the area in the top‑right corner of the window (the inspector / options panel) starts flickering continuously. This happens regardless of whether I’m using the light or dark theme, and even with the Liquid Glass effect disabled in macOS settings. None of these changes have any impact on the issue. I have already submitted a bug report through Xcode (Feedback Assistant), but the issue is still present as of today. The flickering makes the interface difficult to use and visually very distracting. I’ve attached a video to clearly show the issue. I will review the attachment at the time I publish this post. Thanks in advance for any help or feedback. Video 1 https://www.icloud.com/iclouddrive/077l-R7Ybvxz89NI-B7DliEuA#xcode_bug1 Video 2 https://www.icloud.com/iclouddrive/0f6bJp48ioGRdkYiA2U4sI-cg#xcode-bug2

Apple made them both, and for some reason they are acting like each is speaking a foreign language. Once you plug the iPad in, shouldn't the "trust this computer" kick in and allow the iMac to turn on developer mode? I'm the dumbest person in the world when it comes to Code, but this is a no brainer! And the fact that the iPad is in Developer mode, is the most frustrating part. This needs a fix.

The Send to Device in Reality Composer Pro no longer works for me. The progress spinner keeps spinning... Happens with Wifi and Developer Strap (first gen). Any known workarounds / ways to recover?

Following an unexpected error message while working in Xcode, the project file xcodeproj is no longer synced in iCloud Drive. The Finder shows a cloud icon with a ! and an error message : (NSFileProviderErrorDomain error -2005.) If the local file is zipped, and unzipped elsewhere on iCloud Drive, then the unzipped file can still not be iCloud Synced. Restoring the file from a Time Machine archive does not solve the issue. Apple Care Support finds that iCloud Drive is working fine except for this xcodeproj file and says the issue is Xcode related.

After updated to Tahoe 26.2 and Xcode 26.2 it seems to have forgotten the Model Provider I had configured. I create a new Model Provider and it works fine, until I exit Xcode. When I open Xcode again my Model Provider is gone. It all worked fine before I did the updates of MacOS and Xcode.

I am encountering a cloud signing permission error when archiving and uploading an iOS app using Xcode with Automatically manage signing enabled. Xcode reports that it cannot access or create cloud-managed distribution certificates, and therefore cannot find any App Store provisioning profiles for either the main app target or an associated Notification Service Extension. The error message returned by Apple’s certificate API indicates that access to cloud-managed distribution certificates is forbidden. Error messages Cloud signing permission error You haven't been given access to cloud-managed distribution certificates. Please contact your team's Account Holder or an Admin to give you access. No profiles were found Xcode couldn't find any iOS App Store provisioning profiles matching the app or extension targets. Environment Xcode: 16.x Signing method: Automatic signing (App Store distribution) Apple Developer Program team with existing distribution certificates Apple ID role: Admin (recently upgraded from a lower role) What I have verified Automatic signing is enabled for all targets The correct team is selected Bundle identifiers are valid and already registered The app and extension exist in App Store Connect Distribution certificates already exist in the team (previously created manually) Observed behavior Xcode attempts to access cloud-managed distribution certificates Apple certificate service responds with a permission-denied error As a result, provisioning profiles cannot be generated automatically Question After being upgraded to an Admin role, is there a known delay or additional requirement before an account can access cloud-managed distribution certificates, especially for teams that previously used manually managed distribution certificates? Is there any recommended action (besides waiting or having the Account Holder perform an initial signing operation) to unblock automatic signing in this situation?