I'm trying to compile a simple hello world C++ program on my MacBook Pro. I have a M3 Pro (Nov 2023) running Sequoia 15.6. The program is: #include <iostream> int main() { std::cout << "Hello World!"; return 0; } The error I get is: In file included from test.cpp:1: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/iostream:42: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/ios:220: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__locale:15: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__memory/shared_ptr.h:13: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__compare/compare_three_way.h:13: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__compare/three_way_comparable.h:12: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/__compare/common_comparison_category.h:15: /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/cstddef:42:5: error: <cstddef> tried including <stddef.h> but didn't find libc++'s <stddef.h> header. This usually means that your header search paths are not configured properly. The header search paths should contain the C++ Standard Library headers before any C Standard Library, and you are probably using compiler flags that make that not be the case. 42 | # error <cstddef> tried including <stddef.h> but didn't find libc++'s <stddef.h> header. \ | ^ However, I can see stddef.h in /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1/ and in /usr/local/include

Hi, This can't be right. Is there really no replacement for Quartz Debug?!? As the sole developer on a project who has an Intel Mac and Quartz Debug, I am basically a god now. Everyone else has Apple Silicon and... I think they're randomly guessing at this point. Because I have entire teams sending me Intel Mac builds of stuff just so I can test it in QD. This is THE TOOL we used at NewTek to find performance issues, and THE TOOL I used for a dozen companies after that, to help them with similar issues. If there's no replacement, is there a reason there's no replacement? This feels like a massive step backwards, having to guess at problems like this. -Chilton

I have created and Ios app using xojo, and run using the Xcode simulator. I want to test it on my phone and don't seed to put it on the app store as it is for personal use. I've seen pages that indicate a free apple developer option is available for a limited time but can't for the live of me get my app to actually run on my phone. I've tried both apple configurator and xcode to add my app with no luck

About three weeks ago I submitted a DTS ticket (13097367) to receive code level support with a potential SwiftUI bug. At first I did not receive any response at all (beside the automatic confirmation that the ticket has been created). Only after posting the question here, I got a reply from a DTS engineer. However, the proposed solution did not really solve the problem but only circumvents it (UI freezes when ScrollView reaches below SafeArea. Solution: Do not use ScrollView below SafeArea...) I pointed out, that this does not really help me. Since then I did not receive any further response. Is this normal? Is there something wrong with my ticket? Maybe it was closed by accident or something? Thank you very much!

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?

My book env: MacBook Air Apple M4 15.6.1 (24G90) I installed JDK hs_err_pid6813.log by sdkman and homebrew, but when I ran java, os crashed: /opt/homebrew/o/openj/libexec/openjdk.jdk/Contents/Home/bin | stable ./javac --verison ABRT | 12:32:20 # # A fatal error has been detected by the Java Runtime Environment: # # SIGBUS (0xa) at pc=0x000000010211b340, pid=7237, tid=9987 # # JRE version: (21.0.7) (build ) # Java VM: OpenJDK 64-Bit Server VM (21.0.7, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, bsd-aarch64) # Problematic frame: # V [libjvm.dylib+0x35f340] CodeHeap::allocate(unsigned long)+0x15c # # No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again # # An error report file with more information is saved as: # /opt/homebrew/Cellar/openjdk@21/21.0.7/libexec/openjdk.jdk/Contents/Home/bin/hs_err_pid7237.log # # [1] 7237 abort ./javac --verison Does that mean I have to reinstall OSX?

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

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?

I’m using iOS 26 right now, can’t go back to iOS 18 cuz I did not backup and my phone is so laggy right now i cant even turn off developer mode help me please

Hi. I have an iPad 7th gen running iPadOS 14.8.1. For testing purposes, I want to upgrade it to the latest release of iPadOS 17, even though the device wants me to upgrade to iPadOS 18.5. Is there a way to upgrade it to iPadOS 17? btw this would free-up a newer iPad running iPadOS 17 so I can install iPadOS 26 beta. Thank you.

I use CMake for my builds not the XCode GUI. I want to be able to build a single .app that contains both the GUI version and the command line version. I have seen products that ship both as part of the same .app (e.g. CMake) so this is clearly entirely possible, the 64k question is HOW? Right now I am building them as separate apps - lets call them DSS and DSSCL (*). The code base for each is in its own directory - each with its own CMakelists.txt file. My initial thoughts are to change the build for DSSCL so it doesn't create a bundle and then simply copy the DSSCL command and related .qm files into DSS.app/.../MacOS. However that's likely enough totally wrong, so how should I handle this please. As much detail as possible please, I am very new to macOS development -please don't assume knowledge of stuff that's second nature to you Many thanks David (*) Strictly they are DeepSkyStacker and DeepSkyStackerCL

I'm finding developing for HomeKit using the iOS Simulator utterly confounding. All of my home's actual HomeKit accessories show up fine when I run the HomeKit app I'm developing on my actual phone. But none show up when I run my app in the iOS Simulator. Maybe that's how it's supposed to be? I decided to run the HomeKit Accessory Simulator in an attempt to get something to show up in the iOS Simulator, but the accessories I've created there don't show up in the Simulator either. How do I get devices to show up in the iOS Simulator? Thanks.

Hi, I have an installer package that runs a postinstall script. The script can take a long time to complete, as one thing it does is copy about 10-30 GB of files using the rsync tool. We noticed on macOS 15 that the installer would fail almost exactly 10 minutes after it started. Looking in the /var/log/install.log, I see a message like this: 2025-07-01 12:54:32-07 Work-M1 package_script_service[21562]: PackageKit: Terminating PKInstallTask(pid:21573). Task has exceeded its 600 seconds of runtime. This does not happen in my testing on macOS 12 (Monterey) I have a few questions about this: A) Is this documented, and which OS introduced this? B) Is there a way a developer can extend or disable the time limit via a setting in the installer package. Or if not, is there a way end end user can disable it temporarily on their system? Thanks, Andrew

Q. Is there a plan to finally document the PackageInfo file format used in .pkg flat package? The man page for pkgbuild is not really useful to understand the different options. It does not seem to make sense to have an official documentation for the Distribution Definition file but not for the PackageInfo file.

hey I accidentally deleted my info.plist with holds my app version and other critical things and I don't know how to get it back or how to recode it

In the archived documentation for Distribution Definition files (https://developer.apple.com/library/archive/documentation/DeveloperTools/Reference/DistributionDefinitionRef/Chapters/Distribution_XML_Ref.html), the allowed-os-versions and os-version element are partially documented. I have a few questions about these elements: allowed-os-versions The documentation states: Availability: Available in OS X v10.6.6 and later. Has this element always worked correctly in the past? I'm asking because it does not seem to work correctly on OS X v10.14 for the min attribute of a sub os-version element. os-version The documentation states: This element is designed for you to use a specific OS version number for the min attribute, and a major OS version number for the before attribute. The expectation is that you will know an exact minimum version but not an exact major version. This keeps you from having to guess the last minor revision before the next major revision, as you would have to do if the before attribute were inclusive. This is quite confusing because the documentation never explicitly says what a specific or major OS version number is. Is specific major.minor.patch or major.minor? What is major? major or major.minor? As the documentation was created at a time where the OS version scheme was: 10.minor.patch (and minor was actually the major) and we are now in an era where the OS version is major.minor.path, this is even more confusing. I would also be curious to know what the major version is officially supposed to be for macOS Tahoe in this case. 16 or 26? Generally speaking, this documentation is missing examples for a lot of the elements. Also why is there a tag for InstallerJS and not one for Installation in the Developer Forums?

I'm running macOS 15.5. I now have Xcode 26 and I'm testing my iOS app against iOS 26. I've encountered several UIKit / iOS 26 bugs I'd like to report. In Feedback Assistant I choose "Developer Technologies & SDKs". Eventually I get asked "What build does the issue occur on?". The list of choices is: iOS 18.2 Seed 4 iOS 18.1.1 iOS 17.7.2 An earlier iOS build I'm not sure So how to I report this as an iOS 26 beta 1 issue?

Hi Team, I’ve tried downloading the EnableBluetoothCentralMatterClientDeveloperMode.mobileconfig certificate from multiple sources, but all the links I found point to expired versions. Could you please help me with the URL to the latest version of this certificate? Here are the links I’ve already tried, but none of them worked: https://project-chip.github.io/connectedhomeip-doc/guides/darwin.html#profile-installation https://github.com/project-chip/connectedhomeip/blob/master/docs/guides/darwin.md Apple Site Looking forward to your support. Thanks, Mantosh Kumar

I just turned it on by accident and I can’t turn it off… I’m using IOS 26 rn and I can’t go back and I can’t disable the developer mode, I’m not a developer so yeah

Hi, there's this point at which a beginner needs to beg for help. Unable to open mach-O at path: /Library/Caches/com.apple.xbs/Binaries/RenderBox/install/Root/System/Library/PrivateFrameworks/RenderBox.framework/default.metallib Error:2 I get this everytime I select a month and year on a custom date picker, I believe because I try to force the ".generateChartData()" for the chart to update. I guess the problem might be that the ".onAppear" and ".onChange" are conflicting with each other? } .onChange(of: showDatePicker) { viewModel.startDate = selectedDate viewModel.generateChartData() } } .onAppear { viewModel.generateChartData() }