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Icon Composer preview and App Store icon look different
Hello, I made my app icon with Icon Composer and added the .icon file directly to my Xcode project. I noticed that the icon preview in Icon Composer looks one way, while the icon shown on the App Store looks different. Details: I am using the .icon file directly in the project I am not using an exported PNG for the app icon I did not add a separate background image The background was set with fill in Icon Composer The preview in Icon Composer looks as expected The App Store version has a different appearance I would like to ask whether this difference may come from: App Store processing caching or a recommended Icon Composer setup for background fill If anyone has seen something similar, I would appreciate any guidance. I can also share screenshots of the Icon Composer preview and the App Store result.
0
1
125
3w
Unable to get a new API Key
When I try to get a new API Key I get the following error. "API Keys cannot be created due to an invalid Program License Agreement. Please update this agreement and try your request again." I have been to the agreement section, and it says: "Issued October 8, 2025. Accepted November 19, 2025." Any idea why I still get this error?? Not sure if that makes a difference. I had a paid account, but I didn't renew it because I don't need it anymore, and I was told that I can still use this account for free for app testing.
8
0
501
Dec ’25
crash while exectuing __llvm_profile_write_file() in Xcode26.0
I am developing an iOS in-app SDK for collecting code coverage data. The SDK writes coverage data to a specified file by calling __llvm_profile_set_filename and __llvm_profile_write_file. This implementation worked correctly until I switched to Xcode 26.0 to build my project. Now, when __llvm_profile_write_file() is executed, it crashes with the following error stack. Can anyone provide any assistance? Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000001 Exception Codes: 0x0000000000000001, 0x0000000000000001 Termination Reason: Namespace SIGNAL, Code 11, Segmentation fault: 11 Terminating Process: exc handler [454] Thread 96 name: Dispatch queue: com.test-coverage.processing Thread 96: Crashed: 0 Demo 0x122602ea8 initializeValueProfRuntimeRecord (in Demo) (InstrProfilingValue.c:351) 1 Demo 0x00000001226064c0 writeOneValueProfData (in Demo) (InstrProfilingWriter.c:153) 2 Demo 0x0000000122606308 writeValueProfData (in Demo) (InstrProfilingWriter.c:234) 3 Demo 0x00000001226060d0 lprofWriteDataImpl (in Demo) (InstrProfilingWriter.c:401) 4 Demo 0x0000000122605d98 lprofWriteData (in Demo) (InstrProfilingWriter.c:261) 5 Demo 0x0000000122604804 writeFile (in Demo) (InstrProfilingFile.c:536) 6 Demo 0x122604664 __llvm_profile_write_file_alias + 228 7 Demo 0x000000011c6dd108 -[BDTestCoverage p_dumpMainCoverageInfoWithCustomKey:] (in Demo) (TestCoverage.m:995) 8 Demo 0x000000011c6dcef8 -[BDTestCoverage p_dumpAllCoverageProfileWithCustomKey:] (in Demo) (TestCoverage.m:970)
0
1
279
Nov ’25
Installer packages are failing to install on macOS26.1
Hi, We use Flat package installers (.pkg based installers) to install our applications on macOS. In macOS 26.1, installation is failing with the error Unable to use PK session due to incompatible packages. Terminating. 2025-11-03 14:22:36+05:30 Admin-3 installer[1160]: Install failed: The Installer could not install the software because there was no software found to install. Same installer package is working on macOS 26. Any help is greatly appreciated.
15
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674
Dec ’25
RECOLLECTING CODE FROM UPLOAD????
Hello All, I used to own an app named LOLIIPOP, and am in the process of transferring it to my new apple account. I am having two problems.... How do I transfer the source code and binary to my new apple account? My developers have an old code, so I need to send them the LAST code they uploaded to the App Store. How do I do that as well??? Please any help!!! Thanks, Mr. LM
1
0
113
Aug ’25
User crash report contains ??? instead of my app's symbols and no binary image base address
A user of my app sent me a crash report. I have never seen one like this before. All of my app's symbols are replaced with three question marks (???) Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 ??? 0x10844eb40 ??? 1 CoreFoundation 0x7ff80f155518 __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 137 and the binary image as 0x0 - 0xffffffffffffffff ??? (*) <00000000-0000-0000-0000-000000000000> ??? so I cannot find out where exactly the crash happened. What can cause this kind of crash report and can I do anything with it? crash.ips
13
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520
Mar ’26
dlopen problems with debug build, macOS SDK 15, and ASAN
Hello, There seems to be a regression with macOS SDK 15 and dynamically loading libraries if Address Sanitizer is turned on. Seems to only affect Debug builds, and .frameworks. I've also reported this via the Feedback Assistant: FB16513866 Here's a minimal repro, if anyone is interested: https://gist.github.com/peter-esik/6b00432e411be85333e14ae7d953966e I thought I'd post this here, as according to my web searches, this isn't a very well-known bug at this point.
3
1
502
Feb ’26
On Demand Resources as Legacy Technology
I read on this documentation : https://developer.apple.com/help/app-store-connect/reference/app-uploads/on-demand-resources-size-limits that On Demand Resources a legacy technology. Does this mean ODR will be deprecated? If so, when will it officially take effect? Our application is planning to use it, so we need more information to support our decision.
1
0
381
Nov ’25
Developer Disk Image could not be mounted on this device
I have been working on a M1 Mac mini, using my iPad Air M2 running 26.3 iPadOS. Switched to a new M4 Mac mini, went to connect my iPad to run from Xcode and was presented this "The developer disk image could not be mounted on this device." So how can a get an updated DDI? I appreciate any ideas. /Users/robertlawson/Desktop/Screenshot 2026-02-15 at 8.21.50 PM.png
0
1
136
Feb ’26
"Application has not loaded accessibility" timeout followed by silent auto-recovery corrupts framework state on iOS 18
On iOS 18, when XCUITest encounters an "Application has not loaded accessibility" error after the 60 second timeout, it performs an undocumented auto-recovery ("Setting up automation session") instead of halting the test as documented. This leaves the XCUITest framework in a corrupted state, causing subsequent tests in the same session to fail with unexpected behavior. Expected Behavior (per Apple documentation): Any failure in the launch sequence will be reported as a test failure and the test will be halted at that point. Actual Behavior: XCUITest waits 60 seconds for accessibility to load Logs "Application has not loaded accessibility" error Instead of halting, performs "Setting up automation session" (auto-recovery) Test continues with corrupted framework state Subsequent tests in the same session fail with phantom element queries Steps Run XCUITest suite on a real iOS 18 device Have an app with moderately heavy initialization (e.g., synchronous network operations during bootstrap) Observe intermittent "accessibility not loaded" errors When error occurs, subsequent tests fail with unexpected behavior Test Logs Evidence First test (accessibility failure + recovery): t = 11.11s Wait for accessibility to load t = 71.14s Capturing diagnostic spindump t = 76.24s Assertion Failure: Application 'com.example.app' has not loaded accessibility t = 76.26s Setting up automation session ← Undocumented recovery t = 77.29s Tear Down Second test (corrupted state): t = 35.01s Tap "signin-button" t = 35.55s Waiting for "bannerButtonStackFirstItem" ← Query NOT in test code! t = 40.58s Assertion Failure: Failed to find element The second test executes element queries that do not exist in its source code, indicating leaked/corrupted state from the previous test's failed recovery. Note: The tearDown() method terminates the app but cannot reset the internal state of the XCUITest framework itself, so corruption persists across tests. We are observing this behavior consistently on iOS 18 real devices. We would like to know: Is this a known issue with XCUITest on iOS 18? Is anyone experiencing similar "accessibility not loaded" failures followed by auto-recovery? Is the "Setting up automation session" recovery behavior intentional or a bug? Is there a recommended workaround to prevent framework state corruption between tests?
0
1
258
Jan ’26
Cannot Install Developer Beta Update OTA or IPSW
I’m a registered iOS developer, and I’ve been facing an issue with installing iOS developer updates for the past couple of years. I can download the updates, but they get stuck at 99.9% complete and don’t finish. I’ve tried following the instructions to force restart the phone, but it stays on the Apple logo screen until it dies. I can update official iOS versions, but not beta versions. To update, I have to put the phone in DFU mode and install the update that way. This is frustrating and prevents me from making timely updates to my app and from diagnosing new issues during testing. I’d like to request that Apple investigate this issue and identify a solution. For reference, I’ve installed a bare-bones version with no new apps, and the problem persists. I would like a resolution that allows me to update normally without having to DFU the phone each time. This occurs via OTA or IPSW manual download and installation. Please refer to the following FB submission numbers: FB21642029 and FB21017894. CAN SOMEONE PLEASE RESPOND BACK TO THIS MESSAGE AND HELP ME TROUBLESHOOT THIS ISSUE?!
3
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272
2d
Assertion failed: (reconstituted == accumulator), function setFixup64, file OutputFile.cpp, line 2975
Xcode 16.2 Flutter version 3.27.1 0 0x1008abee4 __assert_rtn + 160 1 0x1008add9c ld::tool::OutputFile::setFixup64(unsigned char*, unsigned long long, ld::Atom const*) (.cold.3) + 0 2 0x100789640 ld::tool::OutputFile::setFixup64(unsigned char*, unsigned long long, ld::Atom const*) + 656 3 0x100785b78 ld::tool::OutputFile::applyFixUps(ld::Internal&amp;, unsigned long long, ld::Atom const*, unsigned char*) + 4388 4 0x10078be18 ___ZN2ld4tool10OutputFile10writeAtomsERNS_8InternalEPh_block_invoke + 488 5 0x19bc19428 _dispatch_client_callout2 + 20 6 0x19bc2d850 _dispatch_apply_invoke3 + 336 7 0x19bc193e8 _dispatch_client_callout + 20 8 0x19bc1ac68 _dispatch_once_callout + 32 9 0x19bc2c8a4 _dispatch_apply_invoke + 252 10 0x19bc193e8 _dispatch_client_callout + 20 11 0x19bc2b080 _dispatch_root_queue_drain + 864 12 0x19bc2b6b8 _dispatch_worker_thread2 + 156 13 0x19bdc5fd0 _pthread_wqthread + 228 A linker snapshot was created at: /tmp/Test Kopi Kenangan.debug.dylib-2025-02-27-100512.ld-snapshot ld: Assertion failed: (reconstituted == accumulator), function setFixup64, file OutputFile.cpp, line 2975. clang: error: linker command failed with exit code 1 (use -v to see invocation)
5
1
716
Sep ’25
Is this normal while developing an app on the watch?
I used to develop iPhone apps about a decade ago and am now back at it with an iPhone and companion Apple Watch app. Why does it suck so bad? I a must be doing something wrong, but what I am doing is out of the box. The majority of the time when I go to build on the watch I get: Previous preparation error: A connection to this device could not be established.; Timed out while attempting to establish tunnel using negotiated network parameters. Which I then first try to force quit the app on the watch and if that does not work, reboot the watch (which is pretty ridiculous). I tried Gemini and it gave me the following explanation: This is arguably the single most frustrating error in the entire watchOS development ecosystem. As an expert, I can tell you that you are not doing anything wrong; you are fighting a fragile architecture. Here is the technical breakdown of why this happens and a workflow to mitigate it without constant reboots. The Technical "Why" This error message reveals that the issue lies in the CoreDevice (and formerly usbmuxd) infrastructure, specifically in the secure transport layer. The "Tunnel" Failure: Xcode attempts to establish a secure, encrypted tunnel (DTXConnection) to the Apple Watch to push the debugger and the app binary. Unlike the iPhone, which can sustain a high-bandwidth connection easily, the Watch aggressively manages its radios (Bluetooth vs. WiFi vs. AWDL) to save battery. The "Handshake" Timeout: If the Watch is on Bluetooth (Low Energy) when Xcode initiates the tunnel, the bandwidth is insufficient. The system tries to escalate the connection to WiFi (or Apple Wireless Direct Link). If this negotiation takes even a few milliseconds too long—due to 2.4GHz interference, router mDNS configuration, or the Watch CPU being throttled—the handshake times out. The "Previous Preparation Error": This is the insidious part. Once the handshake fails once, Xcode’s device service caches that failure state for the device UUID. It marks the device as "unreachable" to prevent the IDE from hanging indefinitely on subsequent tries. Why you see it constantly: You aren't actually triggering a new connection attempt; you are hitting the cached "failed" state immediately. Unfortunately, the solutions it gives me are: The "Wired Proxy" Method (Most Reliable) This is the gold standard for watchOS debugging. Do not rely on "Connect via Network" for the Watch directly if you can avoid it. Disable WiFi on your Mac (temporarily) or ensure the Mac and iPhone are on the exact same SSID. Plug your iPhone into the Mac via USB. Ensure the Watch is paired to that iPhone. Result: Xcode will tunnel the instructions through the USB connection to the Phone, and the Phone acts as a high-bandwidth proxy to the Watch. This eliminates the "Mac-to-Watch" WiFi negotiation failure point. Do you hit this regularly? What do you do to make for a smooth development and deployment process? Or is it really this fragile? Thanks for any help! Bryan
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806
Mar ’26
Distributing In House Apps via my OWN website
Good morning. I have an APPLE DEVELOPER ACCOUNT. I am inquiring about Distributing In House Apps using my own website. All the links so far do not help. They all seem to be relevant to the Apple Store and not In House apps. I have my apps ready for evaluation. I understand you need to evaluate them. I want to apply for a certificate that will allow me to put the apps on my OWN website and have users download these and install to their Apple devices. So far I have been testing using own devices but every build I create does NOT create a manifest file. They do work but obviously I need a manifest for the website. I assume a relevant certificate would provide that. Can you please let me know of any and all information that applies on how to apply for an In House Distribution Certificate and how and where I should upload my apps for evaluation. Thank you so much. John
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229
2w
Problem getting Expectation objects (AI slop)
This is from an Xcode generated file. var values: [String] = [] let exp = Expectation() let c = pub.filter { $0 != nil }.map { $0! }.sink( The second line gives an error: "'Expectation' cannot be constructed because it has no accessible initializers". My best guess that Expectation objects come from some other Apple Swift Testing function, but I don't know where.
2
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252
Jan ’26
Icon Composer preview and App Store icon look different
Hello, I made my app icon with Icon Composer and added the .icon file directly to my Xcode project. I noticed that the icon preview in Icon Composer looks one way, while the icon shown on the App Store looks different. Details: I am using the .icon file directly in the project I am not using an exported PNG for the app icon I did not add a separate background image The background was set with fill in Icon Composer The preview in Icon Composer looks as expected The App Store version has a different appearance I would like to ask whether this difference may come from: App Store processing caching or a recommended Icon Composer setup for background fill If anyone has seen something similar, I would appreciate any guidance. I can also share screenshots of the Icon Composer preview and the App Store result.
Replies
0
Boosts
1
Views
125
Activity
3w
Unable to get a new API Key
When I try to get a new API Key I get the following error. "API Keys cannot be created due to an invalid Program License Agreement. Please update this agreement and try your request again." I have been to the agreement section, and it says: "Issued October 8, 2025. Accepted November 19, 2025." Any idea why I still get this error?? Not sure if that makes a difference. I had a paid account, but I didn't renew it because I don't need it anymore, and I was told that I can still use this account for free for app testing.
Replies
8
Boosts
0
Views
501
Activity
Dec ’25
crash while exectuing __llvm_profile_write_file() in Xcode26.0
I am developing an iOS in-app SDK for collecting code coverage data. The SDK writes coverage data to a specified file by calling __llvm_profile_set_filename and __llvm_profile_write_file. This implementation worked correctly until I switched to Xcode 26.0 to build my project. Now, when __llvm_profile_write_file() is executed, it crashes with the following error stack. Can anyone provide any assistance? Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000001 Exception Codes: 0x0000000000000001, 0x0000000000000001 Termination Reason: Namespace SIGNAL, Code 11, Segmentation fault: 11 Terminating Process: exc handler [454] Thread 96 name: Dispatch queue: com.test-coverage.processing Thread 96: Crashed: 0 Demo 0x122602ea8 initializeValueProfRuntimeRecord (in Demo) (InstrProfilingValue.c:351) 1 Demo 0x00000001226064c0 writeOneValueProfData (in Demo) (InstrProfilingWriter.c:153) 2 Demo 0x0000000122606308 writeValueProfData (in Demo) (InstrProfilingWriter.c:234) 3 Demo 0x00000001226060d0 lprofWriteDataImpl (in Demo) (InstrProfilingWriter.c:401) 4 Demo 0x0000000122605d98 lprofWriteData (in Demo) (InstrProfilingWriter.c:261) 5 Demo 0x0000000122604804 writeFile (in Demo) (InstrProfilingFile.c:536) 6 Demo 0x122604664 __llvm_profile_write_file_alias + 228 7 Demo 0x000000011c6dd108 -[BDTestCoverage p_dumpMainCoverageInfoWithCustomKey:] (in Demo) (TestCoverage.m:995) 8 Demo 0x000000011c6dcef8 -[BDTestCoverage p_dumpAllCoverageProfileWithCustomKey:] (in Demo) (TestCoverage.m:970)
Replies
0
Boosts
1
Views
279
Activity
Nov ’25
Installer packages are failing to install on macOS26.1
Hi, We use Flat package installers (.pkg based installers) to install our applications on macOS. In macOS 26.1, installation is failing with the error Unable to use PK session due to incompatible packages. Terminating. 2025-11-03 14:22:36+05:30 Admin-3 installer[1160]: Install failed: The Installer could not install the software because there was no software found to install. Same installer package is working on macOS 26. Any help is greatly appreciated.
Replies
15
Boosts
0
Views
674
Activity
Dec ’25
Icon Composer does not create icon that appears in App
I am running into an issue where when layers are grouped, the icon is not shown as it does within the preview in the Icon Composer app Is this a bug or is it some setting within the group/app?
Replies
0
Boosts
1
Views
156
Activity
Jul ’25
RECOLLECTING CODE FROM UPLOAD????
Hello All, I used to own an app named LOLIIPOP, and am in the process of transferring it to my new apple account. I am having two problems.... How do I transfer the source code and binary to my new apple account? My developers have an old code, so I need to send them the LAST code they uploaded to the App Store. How do I do that as well??? Please any help!!! Thanks, Mr. LM
Replies
1
Boosts
0
Views
113
Activity
Aug ’25
libclang_rt.fuzzer_osx.a not found
I tried to build my project with -fsanitize=fuzzer. This failed to link with libclang_rt.fuzzer_osx.a not found when attempting to link the code. I mean really!! Why on earth would you exclude this from the version of clang that ships with XCode!
Replies
2
Boosts
0
Views
139
Activity
Mar ’26
User crash report contains ??? instead of my app's symbols and no binary image base address
A user of my app sent me a crash report. I have never seen one like this before. All of my app's symbols are replaced with three question marks (???) Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 ??? 0x10844eb40 ??? 1 CoreFoundation 0x7ff80f155518 __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 137 and the binary image as 0x0 - 0xffffffffffffffff ??? (*) <00000000-0000-0000-0000-000000000000> ??? so I cannot find out where exactly the crash happened. What can cause this kind of crash report and can I do anything with it? crash.ips
Replies
13
Boosts
0
Views
520
Activity
Mar ’26
dlopen problems with debug build, macOS SDK 15, and ASAN
Hello, There seems to be a regression with macOS SDK 15 and dynamically loading libraries if Address Sanitizer is turned on. Seems to only affect Debug builds, and .frameworks. I've also reported this via the Feedback Assistant: FB16513866 Here's a minimal repro, if anyone is interested: https://gist.github.com/peter-esik/6b00432e411be85333e14ae7d953966e I thought I'd post this here, as according to my web searches, this isn't a very well-known bug at this point.
Replies
3
Boosts
1
Views
502
Activity
Feb ’26
On Demand Resources as Legacy Technology
I read on this documentation : https://developer.apple.com/help/app-store-connect/reference/app-uploads/on-demand-resources-size-limits that On Demand Resources a legacy technology. Does this mean ODR will be deprecated? If so, when will it officially take effect? Our application is planning to use it, so we need more information to support our decision.
Replies
1
Boosts
0
Views
381
Activity
Nov ’25
Developer Disk Image could not be mounted on this device
I have been working on a M1 Mac mini, using my iPad Air M2 running 26.3 iPadOS. Switched to a new M4 Mac mini, went to connect my iPad to run from Xcode and was presented this "The developer disk image could not be mounted on this device." So how can a get an updated DDI? I appreciate any ideas. /Users/robertlawson/Desktop/Screenshot 2026-02-15 at 8.21.50 PM.png
Replies
0
Boosts
1
Views
136
Activity
Feb ’26
"Application has not loaded accessibility" timeout followed by silent auto-recovery corrupts framework state on iOS 18
On iOS 18, when XCUITest encounters an "Application has not loaded accessibility" error after the 60 second timeout, it performs an undocumented auto-recovery ("Setting up automation session") instead of halting the test as documented. This leaves the XCUITest framework in a corrupted state, causing subsequent tests in the same session to fail with unexpected behavior. Expected Behavior (per Apple documentation): Any failure in the launch sequence will be reported as a test failure and the test will be halted at that point. Actual Behavior: XCUITest waits 60 seconds for accessibility to load Logs "Application has not loaded accessibility" error Instead of halting, performs "Setting up automation session" (auto-recovery) Test continues with corrupted framework state Subsequent tests in the same session fail with phantom element queries Steps Run XCUITest suite on a real iOS 18 device Have an app with moderately heavy initialization (e.g., synchronous network operations during bootstrap) Observe intermittent "accessibility not loaded" errors When error occurs, subsequent tests fail with unexpected behavior Test Logs Evidence First test (accessibility failure + recovery): t = 11.11s Wait for accessibility to load t = 71.14s Capturing diagnostic spindump t = 76.24s Assertion Failure: Application 'com.example.app' has not loaded accessibility t = 76.26s Setting up automation session ← Undocumented recovery t = 77.29s Tear Down Second test (corrupted state): t = 35.01s Tap "signin-button" t = 35.55s Waiting for "bannerButtonStackFirstItem" ← Query NOT in test code! t = 40.58s Assertion Failure: Failed to find element The second test executes element queries that do not exist in its source code, indicating leaked/corrupted state from the previous test's failed recovery. Note: The tearDown() method terminates the app but cannot reset the internal state of the XCUITest framework itself, so corruption persists across tests. We are observing this behavior consistently on iOS 18 real devices. We would like to know: Is this a known issue with XCUITest on iOS 18? Is anyone experiencing similar "accessibility not loaded" failures followed by auto-recovery? Is the "Setting up automation session" recovery behavior intentional or a bug? Is there a recommended workaround to prevent framework state corruption between tests?
Replies
0
Boosts
1
Views
258
Activity
Jan ’26
How do I install the iOS 26 beta 2 simulator?
I can see that iOS beta 2 was released yesterday. I'm not running the beta yet on my actual iPhone, but I wanted to see if an issue I reported in beta 1 was fixed. Is there a way to update my iOS 26 simulator for beta 2? Usually, there's a new Xcode download that includes the new simulator, but it looks like the most recent Xcode beta release was June 9.
Replies
2
Boosts
1
Views
685
Activity
Jun ’25
Xcode 26 with simulator 16 ?
mac mini xcode 26.4, but the simulator version is 16. how can i update the simulator to version 26?
Replies
2
Boosts
0
Views
149
Activity
Apr ’26
Cannot Install Developer Beta Update OTA or IPSW
I’m a registered iOS developer, and I’ve been facing an issue with installing iOS developer updates for the past couple of years. I can download the updates, but they get stuck at 99.9% complete and don’t finish. I’ve tried following the instructions to force restart the phone, but it stays on the Apple logo screen until it dies. I can update official iOS versions, but not beta versions. To update, I have to put the phone in DFU mode and install the update that way. This is frustrating and prevents me from making timely updates to my app and from diagnosing new issues during testing. I’d like to request that Apple investigate this issue and identify a solution. For reference, I’ve installed a bare-bones version with no new apps, and the problem persists. I would like a resolution that allows me to update normally without having to DFU the phone each time. This occurs via OTA or IPSW manual download and installation. Please refer to the following FB submission numbers: FB21642029 and FB21017894. CAN SOMEONE PLEASE RESPOND BACK TO THIS MESSAGE AND HELP ME TROUBLESHOOT THIS ISSUE?!
Replies
3
Boosts
0
Views
272
Activity
2d
Assertion failed: (reconstituted == accumulator), function setFixup64, file OutputFile.cpp, line 2975
Xcode 16.2 Flutter version 3.27.1 0 0x1008abee4 __assert_rtn + 160 1 0x1008add9c ld::tool::OutputFile::setFixup64(unsigned char*, unsigned long long, ld::Atom const*) (.cold.3) + 0 2 0x100789640 ld::tool::OutputFile::setFixup64(unsigned char*, unsigned long long, ld::Atom const*) + 656 3 0x100785b78 ld::tool::OutputFile::applyFixUps(ld::Internal&amp;, unsigned long long, ld::Atom const*, unsigned char*) + 4388 4 0x10078be18 ___ZN2ld4tool10OutputFile10writeAtomsERNS_8InternalEPh_block_invoke + 488 5 0x19bc19428 _dispatch_client_callout2 + 20 6 0x19bc2d850 _dispatch_apply_invoke3 + 336 7 0x19bc193e8 _dispatch_client_callout + 20 8 0x19bc1ac68 _dispatch_once_callout + 32 9 0x19bc2c8a4 _dispatch_apply_invoke + 252 10 0x19bc193e8 _dispatch_client_callout + 20 11 0x19bc2b080 _dispatch_root_queue_drain + 864 12 0x19bc2b6b8 _dispatch_worker_thread2 + 156 13 0x19bdc5fd0 _pthread_wqthread + 228 A linker snapshot was created at: /tmp/Test Kopi Kenangan.debug.dylib-2025-02-27-100512.ld-snapshot ld: Assertion failed: (reconstituted == accumulator), function setFixup64, file OutputFile.cpp, line 2975. clang: error: linker command failed with exit code 1 (use -v to see invocation)
Replies
5
Boosts
1
Views
716
Activity
Sep ’25
Is this normal while developing an app on the watch?
I used to develop iPhone apps about a decade ago and am now back at it with an iPhone and companion Apple Watch app. Why does it suck so bad? I a must be doing something wrong, but what I am doing is out of the box. The majority of the time when I go to build on the watch I get: Previous preparation error: A connection to this device could not be established.; Timed out while attempting to establish tunnel using negotiated network parameters. Which I then first try to force quit the app on the watch and if that does not work, reboot the watch (which is pretty ridiculous). I tried Gemini and it gave me the following explanation: This is arguably the single most frustrating error in the entire watchOS development ecosystem. As an expert, I can tell you that you are not doing anything wrong; you are fighting a fragile architecture. Here is the technical breakdown of why this happens and a workflow to mitigate it without constant reboots. The Technical "Why" This error message reveals that the issue lies in the CoreDevice (and formerly usbmuxd) infrastructure, specifically in the secure transport layer. The "Tunnel" Failure: Xcode attempts to establish a secure, encrypted tunnel (DTXConnection) to the Apple Watch to push the debugger and the app binary. Unlike the iPhone, which can sustain a high-bandwidth connection easily, the Watch aggressively manages its radios (Bluetooth vs. WiFi vs. AWDL) to save battery. The "Handshake" Timeout: If the Watch is on Bluetooth (Low Energy) when Xcode initiates the tunnel, the bandwidth is insufficient. The system tries to escalate the connection to WiFi (or Apple Wireless Direct Link). If this negotiation takes even a few milliseconds too long—due to 2.4GHz interference, router mDNS configuration, or the Watch CPU being throttled—the handshake times out. The "Previous Preparation Error": This is the insidious part. Once the handshake fails once, Xcode’s device service caches that failure state for the device UUID. It marks the device as "unreachable" to prevent the IDE from hanging indefinitely on subsequent tries. Why you see it constantly: You aren't actually triggering a new connection attempt; you are hitting the cached "failed" state immediately. Unfortunately, the solutions it gives me are: The "Wired Proxy" Method (Most Reliable) This is the gold standard for watchOS debugging. Do not rely on "Connect via Network" for the Watch directly if you can avoid it. Disable WiFi on your Mac (temporarily) or ensure the Mac and iPhone are on the exact same SSID. Plug your iPhone into the Mac via USB. Ensure the Watch is paired to that iPhone. Result: Xcode will tunnel the instructions through the USB connection to the Phone, and the Phone acts as a high-bandwidth proxy to the Watch. This eliminates the "Mac-to-Watch" WiFi negotiation failure point. Do you hit this regularly? What do you do to make for a smooth development and deployment process? Or is it really this fragile? Thanks for any help! Bryan
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8
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806
Activity
Mar ’26
Distributing In House Apps via my OWN website
Good morning. I have an APPLE DEVELOPER ACCOUNT. I am inquiring about Distributing In House Apps using my own website. All the links so far do not help. They all seem to be relevant to the Apple Store and not In House apps. I have my apps ready for evaluation. I understand you need to evaluate them. I want to apply for a certificate that will allow me to put the apps on my OWN website and have users download these and install to their Apple devices. So far I have been testing using own devices but every build I create does NOT create a manifest file. They do work but obviously I need a manifest for the website. I assume a relevant certificate would provide that. Can you please let me know of any and all information that applies on how to apply for an In House Distribution Certificate and how and where I should upload my apps for evaluation. Thank you so much. John
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10
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229
Activity
2w
Problem getting Expectation objects (AI slop)
This is from an Xcode generated file. var values: [String] = [] let exp = Expectation() let c = pub.filter { $0 != nil }.map { $0! }.sink( The second line gives an error: "'Expectation' cannot be constructed because it has no accessible initializers". My best guess that Expectation objects come from some other Apple Swift Testing function, but I don't know where.
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2
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0
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252
Activity
Jan ’26
Unable to sign in to Feedback Assistant
I'm unable to sign in to Feedback Assistant on macOS. I have two Apple accounts and neither will sign in. I am able to sign in via the website. With the desktop app I'm getting a rather generic error message: "Unable to sign in to Feedback Assistant Thank you for your patience. Please try again later." This started this morning.
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6
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1
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250
Activity
Oct ’25