At WWDC25 we launched a new type of Lab event for the developer community - Group Labs. A Group Lab is a panel Q&A designed for a large audience of developers. Group Labs are a unique opportunity for the community to submit questions directly to a panel of Apple engineers and designers. Here are the highlights from the WWDC25 Group Lab for Developer Tools. Will my project codebase be used for training when I use Xcode's intelligent assistant powered by cloud-based models? When using ChatGPT without logging in, your data will not be used to improve any models. If you log in to a ChatGPT account, this is based on your ChatGPT account settings, which allows you to opt-out (it defaults to on). When using Xcode with accounts for other model providers, you should check with the policies of your provider. And finally, at no point will any portion of your codebase be used to train or improve any Apple models. We'd love to make our SwiftUI Previews (and soon, Playgrounds) as snappy as possible. Is there any way to skip certain build steps, such as running linters? It seems the build environment is exactly the same (compared to a debug build), but maybe there's a trick. Starting with Xcode 16, SwiftUI previews use the exact same build artifacts as the regular build. The new Playgrounds support in Xcode 26 uses these build artifacts too. Shell script build phases are the most common thing that introduces extra build time, so as a first step, try turning off all shell script build phases (like linters) to get an idea if that’s the issue. If those build phases add significant time to your build, consider moving some of those phases into asynchronous steps, such as running linters before committing instead of on every build. If you do need a shell script build phase to run during your build, make sure to explicitly define the input and output files, as that is a huge way to improve your build performance. Are we able to provide additional context for the models, like coding standards? Documentation for third party dependencies? Documentation on your own codebase that explains things like architecture and more? In general, Xcode will automatically search for the right context based on the question and the evolving answer, as the model can interact multiple times with your project as it develops an answer. This will automatically pick up the coding style of the code it sees, and can include files that contain architecture comments, etc. Beyond automatic context, you can manually attach other documents, even if they aren't in your project. For example, you could make a file with rules and ideas and attach it, and it will influence the response. We are very aware of other kinds of automatic context like rule files, etc, though Xcode does not support these at this time. Once ChatGPT is enabled for Coding Intelligence in Xcode 26, and I sign into my existing ChatGPT account, will the ChatGPT Coding Intelligence model in Xcode know about chat conversations on Xcode development done previously in the ChatGPT Mac app? Xcode does not use information from other conversations, and conversations started in Xcode are not accessible in the web UI or ChatGPT app. Is there a plan to make SwiftUI views easier to locate and understand in the view hierarchy like UIKit views? SwiftUI uses a declarative paradigm to define your user interface. That allows you to specify what you want, with the system translating that into an efficient representation at runtime. Unlike traditional AppKit and UIKit, seeing the runtime representation of SwiftUI views isn't sufficient in order to understand why it's not doing what you want. This year, we introduced a SwiftUI Instrument that shows why things are happening, like view re-rendering. Is it possible to use the AI chat with ChatGPT Enterprise? My company doesn't allow us to use the general ChatGPT, only the enterprise version they have setup that prevents data from being leaked Yes, Xcode 26 supports logging into any existing ChatGPT account, including enterprise accounts. If that does not meet your needs, you can also setup a local server that implements the popular chat completions REST API to talk to your enterprise account how you need. Now that Icon Composer is here, how does it complement or replace existing vector design tools such as Sketch for icon design? Icon Composer complements your existing vector design tools. You should continue to create your shapes, gradients, and layers in another tool like Sketch, and compose the exported SVG layers in Icon Composer. Once you bring your layers into Icon Composer, you can then use it to influence the translucency, blur, and specular highlights for your icon. What’s one feature or improvement in the new Xcode that you personally think developers will love, but might not immediately discover? Maybe something tucked away or quietly powerful that’s flown under the radar so far? One feature we're particularly excited about is the new power profiler for iOS, which gives you further insights into the energy consumption of your app beyond what was possible with the energy instrument previously. You can learn more about how to use this instrument and how it can help you greatly reduce your apps battery usage in the documentation, as well as the session Profile and optimize power usage in your app. There were also improvements in accessibility this year with Voice Control, where you can naturally speak your Swift code to Xcode, and it understands the Swift syntax as you speak. To see it in action, take a look at the demonstration in What’s new in Xcode 26. We have a software advisory council that is very sensitive to having our private information going to the cloud in any form. What information do you have to help me guide Xcode and Apple Intelligence through the acceptance process? One thing you can do is configure a proxy for your enterprise that implementing the popular Chat Completions API endpoint protocol. When using a model provider via URL, you can use your proxy endpoint to inspect the network traffic for anything that you do not want sent outside of your enterprise, and then forward the traffic through the proxy to your chosen model provider. Are there list of recommended LLMs to use with Xcode via Intelligence/Local? I've tried Gemma3-12B, but.. I hope there are better options? Apple doesn't have a published list of recommended local models. This is a fast-moving space, and so a recommendation would become out of date very quickly as new models are released. We encourage you to try out the local model support in Xcode 26 with models that you find meet your needs, and let us and the community know! (continued below)

In our app, we implement a document picker using FilePickerManager+available.m, selecting different APIs based on the iOS version: if (@available(iOS 14.0, *)) { NSMutableArray<UTType *> *contentTypes = [NSMutableArray array]; for (NSString *uti in documentTypes) { UTType *type = [UTType typeWithIdentifier:uti]; if (type) { [contentTypes addObject:type]; NSLog(@"iOS 14+ Adding type: %@", uti); } else { NSLog(@"Warning: Unable to create UTI: %@", uti); } } UIDocumentPickerViewController *documentPicker = [[UIDocumentPickerViewController alloc] initForOpeningContentTypes:contentTypes]; documentPicker.delegate = self; documentPicker.allowsMultipleSelection = NO; [self.presentingViewController presentViewController:documentPicker animated:YES completion:nil]; } However, we've observed inconsistent symbol reference types to UTType in the final linked binaries: One build results in a strong reference to UTType. Another demo project (with seemingly identical code and build settings) results in a weak reference. Both object files (.o) show undefined references to UTType symbols (e.g., UTTypeCreatePreferredIdentifierForTag), yet the final linked binaries differ in how these symbols are resolved. Impact of the Issue This inconsistency causes problems on iOS 14.0+ devices: Strong reference version: Fails to launch on devices where the UniformTypeIdentifiers framework is not present (e.g., certain older iOS 14.x devices), due to link-time failure. Weak reference version: Launches successfully but crashes at runtime when attempting to call UTType methods, because the implementation cannot be found. Our Analysis Using nm -u, both versions show an undefined symbol: U _UTTypeCreatePreferredIdentifierForTag However, in the final binaries: One shows: T _UTTypeCreatePreferredIdentifierForTag (strong) The other shows: W _UTTypeCreatePreferredIdentifierForTag (weak) Both projects link against the framework identically in their build logs: -framework UniformTypeIdentifiers (no -weak_framework flag is used in either case). Questions Why do identical source code and linker flags result in different symbol reference strengths (T vs W) for the same framework? Are there specific compiler or linker behaviors (e.g., deployment target, SDK version, module imports, or bitcode settings) that influence whether symbols from UniformTypeIdentifiers are treated as strong or weak? What is the recommended best practice to ensure consistent symbol referencing when using newer APIs like UTType, especially when supporting older OS versions? We aim to understand this behavior to guarantee stable operation across all supported iOS versions—avoiding both launch failures and runtime crashes caused by inconsistent symbol linking. Any insights or guidance from the community or Apple engineers would be greatly appreciated! Let me know if you'd like a shorter version or want to include additional build environment details (Xcode version, deployment target, etc.)!

In our app, we implement a document picker using FilePickerManager+available.m, selecting different APIs based on the iOS version: if (@available(iOS 14.0, *)) { NSMutableArray<UTType *> *contentTypes = [NSMutableArray array]; for (NSString *uti in documentTypes) { UTType *type = [UTType typeWithIdentifier:uti]; if (type) { [contentTypes addObject:type]; NSLog(@"iOS 14+ Adding type: %@", uti); } else { NSLog(@"Warning: Unable to create UTI: %@", uti); } } UIDocumentPickerViewController *documentPicker = [[UIDocumentPickerViewController alloc] initForOpeningContentTypes:contentTypes]; documentPicker.delegate = self; documentPicker.allowsMultipleSelection = NO; [self.presentingViewController presentViewController:documentPicker animated:YES completion:nil]; } However, we've observed inconsistent symbol reference types to UTType in the final linked binaries: One build results in a strong reference to UTType. Another demo project (with seemingly identical code and build settings) results in a weak reference. Both object files (.o) show undefined references to UTType symbols (e.g., UTTypeCreatePreferredIdentifierForTag), yet the final linked binaries differ in how these symbols are resolved. Impact of the Issue This inconsistency causes problems on iOS 14.0+ devices: Strong reference version: Fails to launch on devices where the UniformTypeIdentifiers framework is not present (e.g., certain older iOS 14.x devices), due to link-time failure. Weak reference version: Launches successfully but crashes at runtime when attempting to call UTType methods, because the implementation cannot be found. Our Analysis Using nm -u, both versions show an undefined symbol: U _UTTypeCreatePreferredIdentifierForTag However, in the final binaries: One shows: T _UTTypeCreatePreferredIdentifierForTag (strong) The other shows: W _UTTypeCreatePreferredIdentifierForTag (weak) Both projects link against the framework identically in their build logs: -framework UniformTypeIdentifiers (no -weak_framework flag is used in either case). Questions Why do identical source code and linker flags result in different symbol reference strengths (T vs W) for the same framework? Are there specific compiler or linker behaviors (e.g., deployment target, SDK version, module imports, or bitcode settings) that influence whether symbols from UniformTypeIdentifiers are treated as strong or weak? What is the recommended best practice to ensure consistent symbol referencing when using newer APIs like UTType, especially when supporting older OS versions? We aim to understand this behavior to guarantee stable operation across all supported iOS versions—avoiding both launch failures and runtime crashes caused by inconsistent symbol linking. Any insights or guidance from the community or Apple engineers would be greatly appreciated! Let me know if you'd like a shorter version or want to include additional build environment details (Xcode version, deployment target, etc.)!

I am having trouble in renewing my Apple Developer account. I do not see any renew or Apple Developer Subscription Payment option.

Hey all, I recently updated to Xcode 26.2 and I'm having the hardest time trying to download the corresponding iOS simulator. I installed Xcode from developer downloads and the app did not come loaded with an iOS simulator. When trying to download from Components in Settings, I only get the following message: Download failed due to a bad URL. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime) Domain: com.apple.MobileAssetError.Download Code: 49 User Info: { checkConfiguration = 1; } I also tried downloading via Terminal but also get a download failed message. I am on the latest macOS and have over 600 GB of disk space available. In previous versions, I was able to download the iOS simulator directly from Developer Downloads, but anything after 26 is not there. Any suggestions?

The other day the XCode account had some error that I so that I decided to log out and in again. But when trying to log in to my apple account I get this "Bad URL" with the description "Try signing in again or contact Apple Developer Support to resolve account access". This only happens on the XCode on my work computer. I can log in to XCode on other computers with the same account. This happens only on this computer and with any account that I try to log in to. Obviously there is some cache file somewhere that I need to delete. But I am not finding it.

Hiya folks! I'm David and I work on rust-analyzer, which is a language server for Rust similar to sourcekit-lsp. I'm using the new Instruments profiling tooling functionality in Xcode 16.3 and Xcode 26 (Processor Trace and CPU Counters) to profile our trait solver/type checker. While I've been able to use the new CPU Counters instrument successfully (the CPU Bottleneck feature is incredible! Props to the team!), I've been unable to make use of the Processor Trace instrument. Instruments gives me the error message "Processor Trace cannot profile this process without proper permissions". The diagnostic suggests adding the com.apple.security-get-task-allow entitlement to the code I'm trying to profile, or ensure that the build setting CODE_SIGN_INJECT_BASE_ENTITLEMENTS = YES is enabled in Xcode. Unfortunately, I don't know how I can add that entitlement to a self-signed binary produced by Cargo and I'm not using Xcode for somewhat obvious reasons. Here's some information about my setup: Instruments Version 26.0 (17A5241e) I'm on an 14" MacBook Pro with M4 Pro. It's running macOS Version 26.0 Beta (25A5295e). I've enabled the "Processor Trace" feature in "Developer Tools" and even added the Instruments application to "Developer Tools". As a last-ditch effort before posting this, I disabled SIP on my Mac. Didn't help. To reproduce my issue: Get Rust via https://rustup.rs/. Clone rust-analyzer: git clone https://github.com/rust-lang/rust-analyzer.git. cd rust-analyzer Run cargo test --package hir-ty --lib --profile=dev-rel -- tests::incremental::add_struct_invalidates_trait_solve --exact --show-output. By default, this command will output a bunch of build progress with the output containing something like Running unittests src/lib.rs (target/dev-rel/deps/hir_ty-f1dbf1b1d36575fe). I take the absolute path of that hir_ty-$SOME-HASH string (in my case, it looks like /Users/dbarsky/Developer/rust-analyzer/target/dev-rel/deps/hir_ty-f1dbf1b1d36575fe) and add it to the "Launch" profile. To the arguments section, I add --exact tests::incremental::add_struct_invalidates_trait_solve. I then try to record/profile via Instruments, but then I get the error message I shared above. Below is output of codesign -dvvv: ❯ codesign -dvvv target/dev-rel/deps/hir_ty-f1dbf1b1d36575fe Executable=/Users/dbarsky/Developer/rust-analyzer/target/dev-rel/deps/hir_ty-f1dbf1b1d36575fe Identifier=hir_ty-f1dbf1b1d36575fe Format=Mach-O thin (arm64) CodeDirectory v=20400 size=140368 flags=0x20002(adhoc,linker-signed) hashes=4383+0 location=embedded Hash type=sha256 size=32 CandidateCDHash sha256=99e96c8622c7e20518617c66a7d4144dc0daef28 CandidateCDHashFull sha256=99e96c8622c7e20518617c66a7d4144dc0daef28f22fac013c28a784571ce1df Hash choices=sha256 CMSDigest=99e96c8622c7e20518617c66a7d4144dc0daef28f22fac013c28a784571ce1df CMSDigestType=2 CDHash=99e96c8622c7e20518617c66a7d4144dc0daef28 Signature=adhoc Info.plist=not bound TeamIdentifier=not set Sealed Resources=none Internal requirements=none Any tips would be welcome! Additionally—and perhaps somewhat naively—I think I'd expect the Processor Trace instrument to just work with an adhoc-signed binary, as lldb and friends largely do—I'm not sure that such a high barrier for CPU perf counters is warranted, especially on an adhoc-signed binary.

I’m blocked debugging a watchOS app on a physical Apple Watch. The iPhone connects to Xcode normally (wired), but the Watch either fails to connect with a tunnel timeout or disappears entirely from Xcode after I unpaired it inside Devices & Simulators. Environment Mac: macOS 26.x (Apple Silicon Mac) Xcode: 26.2 iPhone: iOS 26.1 Apple Watch Ultra: watchOS 26.2 (build 23S303) Connection: iPhone connected to Mac via USB (trusted). Watch paired to iPhone and working normally in the Watch app. Issue A (when Watch is visible in Xcode) In Xcode → Window → Devices and Simulators, the Watch shows up but is not usable and fails to connect. Error: “Previous preparation error: A connection to this device could not be established.” “Timed out while attempting to establish tunnel using negotiated network parameters.” In some attempts the Watch shows “Capacity: Unknown” / limited details, and then fails during preparation. Issue B (after unpairing Watch in Xcode only) I unpaired/removed the Watch in Xcode (Devices & Simulators). I did not unpair the Watch from the iPhone. Now: iPhone appears in Xcode and works normally for builds. Watch is still paired to the iPhone and works normally. Watch no longer appears anywhere in Xcode Devices & Simulators (no paired watch section, no watch run destination). What I’ve tried Reboots of Mac, iPhone, Watch (multiple times) Watch unlocked, awake; iPhone unlocked and close to Watch Verified Watch is paired and connected in iPhone Watch app Developer Mode enabled on iPhone and Watch Wi-Fi and Bluetooth ON (Mac/iPhone/Watch), tried toggling both Tried on home Wi-Fi and also with iPhone hotspot (same result) Resetting trust prompts / reconnecting iPhone via USB, re-trusting Mac Apple Watch: “Clear Trusted Computers” Xcode: removing/re-adding devices; clearing derived data; restarting Xcode Watch Developer networking test: Responsiveness = Medium (430 RPM) Questions 1. Is this a known issue/regression with Xcode 26.2 + watchOS 26.2 tunneling (CoreDevice / devicectl)? 2. Is there an Apple-supported way to force Xcode to re-discover a paired Watch after it was removed from Xcode Devices & Simulators (without unpairing the Watch from the iPhone)? 3. Any recommended logs or diagnostic steps I should collect (Console logs, sysdiagnose, specific Xcode/CoreDevice logs) to include in a Feedback report? If helpful, I can provide the full error text from Xcode’s Devices window and any logs you recommend. Thank you in advance,

Hi everyone, I'm experiencing a persistent issue for months now where I'm unable to download the iOS 26 simulator Runtime. I've tried reinstalling Xcode and also Xcode Beta but same issue. iOS 26 Simulator is also not on developers download page, so manual installation is impossible. And sadly I can't compile any code without having iOS 26 simulator installed. Anyone able to get passed this? Hardware: M1 Pro OS: Tahoe 26.1 Heres the error Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = "2026-01-07 11:35:35 +0000"; } -- Download failed. Domain: DVTDownloadableErrorDomain Code: 41 -- Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({ RequestedBuild = 23C54; }) Domain: DVTDownloadsUtilitiesErrorDomain Code: -1 -- Download failed due to not being able to connect to the host. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime) Domain: com.apple.MobileAssetError.Download Code: 60 User Info: { checkNetwork = 1; } -- System Information macOS Version 26.1 (Build 25B78) Xcode 26.2 (24553) (Build 17C52) Timestamp: 2026-01-07T12:35:35+01:00

Hello, I am having a recurring issue using Swift Playgrounds version 4.6.4 on macOS 26.1. Upon opening a file and every other time I start typing in the code section I get a prompt, the image below, two or three times. It doesn't matter if I accept or decline all or some of the prompts, as soon as I start typing on another line I get prompted another two or three times for permission. It appears to me that prompt generates every time the preview pane tries to update. Declining the prompt breaks the preview but accepting the prompt only gets you through a single line of code before it appears again. I believe this issue started after I updated to macOS26.1 as I had not encountered it before. I've also opened other files with Swift Playgrounds and encounter the same problem. It could also be unrelated to the update and could be an issue with some permission setting somewhere, however, I have been unable to find what or where it could be. Is anyone else experiencing this? Thank you for your time :)

I previously had an account that changed devices when purchasing the Apple Developer Program, which prevented me from continuing the purchase. Customer service stated that they did not have the authority to handle it. So I registered a new ID, but I still couldn't register. Now, both accounts are unable to purchase the Apple Developer Program because the button is grayed out. I consulted customer service, and one of the representatives informed me that my identity is no longer eligible for purchasing the Apple Developer Program. I don't want to purchase using someone else's identity. Is there a way to resolve this? I feel like the purchasing process is locked.

I strugge to make the app icon appear in the simulator and on a physical test device. Currently only the placeholder icon is shown. Using Xcode 15.4 and visionOS 1.2 If configured which app icon to use under Targets/[my app]/General: And in assets theres my visionOS app icon: Why is the app icon not used? Am I missing something or is this an Xcode bug?

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

Hello, after updating macOS to 26.2 and Xcode to 26.2 (Build 17C52), I am unable to build a Flutter iOS application for the simulator. Environment: macOS 26.2 (darwin-arm64) Xcode 26.2 (17C52) Flutter 3.38.7 (stable) Dart 3.10.7 CocoaPods 1.16.2 Target device: iPhone 16e Simulator (iOS 26.x) Issue: The build fails during the Flutter Xcode build phase with this error: Unhandled exception: Null check operator used on a null value #0 Context._embedNativeAssets (file:///opt/homebrew/share/flutter/packages/flutter_tools/bin/xcode_backend.dart:341) Command PhaseScriptExecution failed with a nonzero exit code. Additional info: Runner target uses Pods-Runner.debug/profile/release.xcconfig correctly SUPPORTED_PLATFORMS = iphoneos iphonesimulator SDKROOT resolves to iPhoneOS26.2.sdk even when building for simulator Build Settings and Run Script phases are default Flutter-generated Issue occurs both via flutter run and directly from Xcode Project worked before macOS/Xcode update It appears Xcode 26.2 may be resolving SDKROOT or build environment incorrectly for Flutter projects, causing Flutter’s xcode_backend.dart to crash. Could you please advise whether this is a known issue or requires a workaround? Thank you. Best regards David

I’m currently facing a disk space limitation on my Mac. I’ve already freed up some storage by following the suggestions shared in a previous post, which helped partially, but the issue is not fully resolved and space is still a bottleneck for my workflow. To move forward, I’d like to ask a very concrete question: Is it safe and supported to move Xcode to an external hard drive (SSD), use it from there, and simply connect the drive whenever I need to work with Xcode? Specifically: Are there known issues with performance, stability, or updates? Are there components that must remain on the internal disk to avoid unexpected behavior? Is this a reasonable long-term setup, or just a temporary workaround? I want to make sure I’m not setting myself up for hidden problems down the road. Thanks in advance for any clarification or best practices you can share.

Currently when searching on the Apple Developer Forums it shows the current page number but doesn't show how many pages of results there are total. It would be nice if it also showed the total number of pages of results. FB21655261 https://github.com/feedback-assistant/reports/issues/744

After committing and pushing code changes, the Repository Up Arrow remains. Not matter how many times you Refresh or Fetch..it only goes away when you shutdown Xcode and restart. .gitignore processing is a nightmare to correct. There should be a clearer way to remove/delete files from the repository and also synch with new .gitignore settings. But even the .gitignore file name is misleading. Please clean this up in the settings and/or IDE. It costs huge time to correct. Not seeing a difference between, Fetch Changes, Refresh, or Pull. The only indications of a code changes seems to occur with a Pull. Just not clear what is supposed to happen at the code level.

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.

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

I have been trying from a long time now to register for Apple Developer Account for my company but every time I am getting the Same Unknown Error. And I have tried contacting the support team from a long time but haven't received any resolution.

Around 2012, we developed an Apple app. Due to the team's lack of technical maturity at the time, my partner eventually gave up on further development. Later, around 2019, I logged into one of my Apple IDs, and it showed that the registration was in progress with the button grayed out. Today, in order to register as a developer, I specifically bought a new iPhone 17 from JD.com. The process went smoothly at first, but after filling in my name and address, completing the facial verification, it just logged me out. Now, when I open Developer, the registration button is grayed out again. It’s quite frustrating. I had hoped the new phone would solve the issue. Back in 2019, I encountered the same problem—I tried logging in on different devices, including my wife’s phone and an iPad, but none worked. Could it be that even a newly registered account would face the same issue today? As someone eager to publish an app, this is truly disappointing. I’m not sure if it’s a system problem or something else. I remember that in 2012, we didn’t do anything wrong, but the team wasn’t technically mature enough, and I urged my partner to keep working on it, though he eventually gave up. Now, as I try to register again, I’ve filled in everything today—my bank card (a debit card), completed facial verification, entered my ID card details, and provided my address. But I never reached the payment step. In the end, when I open Developer, the registration button is grayed out. I hope to find out why this is happening, but I haven’t gotten any answers—just like years ago when customer support simply suggested re-registering without a clear explanation. However, registering with someone else’s information could lead to issues later on. I hope to find a solution.