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)

At the last place I worked it took roughly 5 minutes to do an application build. Which in turn made doing any sort of TDD or ever just regular Unit Tests extremely painful to do as the cycle time was simply too long. But that got me thinking. In recent versions of Xcode, Apple added Previews for SwiftUI Views that basically showed code changes to the View in real time. And Previews were made possible by extremely targeted compilation of the view in question. So... what if instead of a Preview pane in the Xcode IDE there was a Test pane the could be displayed such that Tests for a piece of code could be created and run almost immediately? Perhaps by adding a #Testing section to your code #Testing(MyService.self) // Define the entity to be tested. If you could drop the turnaround time AND provide a test playground for service level code that could speed development of such code greatly... and encourage interactive test development at the same time. What do you think?

Hello! I'm trying to flutter run my app but I get this error (Xcode): Command SwiftEmitModule failed with a nonzero exit code So far I've tried: rm -rf ios/Pods ios/Podfile.lock flutter clean && flutter pub get clean xcode workspace reinstall xcode None of the solutions actually work. Xcode: Version 16.2 (16C5032a)

Running macOS 15.4.1, Simulator 16.0 (1042.1), various iOS devices (iPhone 16, iPad 13" M4) I log into iCloud and enable iCloud Drive. Running the Files app, I noticed that I can click on "flat" documents (PDF, JPEG, etc) and they work. However, when I click on "package" documents (e.g. represented by a directory behind the scenes), I get a normal download progress, but then an alert "The operation could not be completed. No such file or directory". This seems to happen with all package documents, e.g. Keynote documents or Reality Composer objcap documents. It does not happen on actual devices logged into the same account. I've tried completely deleting and rebuilding the simulator instances in question, with no success.

After building the app and moving to the select for distribution, there is no option to submit to the app store

Hi all, I’m running into a persistent linker error when building my Unity 6 project (IL2CPP, iOS target) that calls a Swift method via an Objective-C++ wrapper. Despite following all known steps, I keep getting: Undefined symbols for architecture arm64: "_placeGeoAnchor", referenced from: _GeoAnchorTrigger_placeGeoAnchor in libGameAssembly.a ... ld: symbol(s) not found for architecture arm64 I’m trying to place a persistent AR anchor at real-world GPS coordinates (so that the same asset can appear at the same location for a returning user). Since I’m targeting iOS, I can’t use Google’s geospatial anchors (but I sooo wish I could--please apple I beg of you stop being so selfish lol). I've already done these things: Swift file is added to Unity-iPhone target. .mm and .h files are in Unity-iPhone target under Compile Sources. Bridging header is set to Unity-iPhone-Bridging-Header.h. Generated header name is correct (GeoTest-Swift.h). Build Active Architecture Only set to No. Function has attribute((visibility("default"))). Unity project uses IL2CPP scripting backend. Yet I'm still getting the same linker error — it appears Unity (via IL2CPP) references the function, but Xcode doesn't link it. It’s something small that’s being missed with how IL2CPP links native symbols? Or maybe I need to explicitly include something in Link Binary With Libraries? I’ve verified symbol visibility and targets repeatedly. I’ve built AR features in Unity before (for Quest), but this is my first time trying to bridge C# → Objective-C++ → Swift in this way for a geolocation-based AR anchor for an iphone. I'm going crazy, I’ve been stuck on this for 12+ hours now, so any insight or nudge would be deeply appreciated. SPECS: Macbook Pro M4 Pro--Sequoia 15.4 Unity 6000.0.45f1 IPhone 11 iOS 18.4 Xcode 15

Hello!!! I want to do a little project for the original iPhone running iOS 3.1.3 and I don’t find the SDK for iOS 3.1.3. I’ve tried downloading Xcode 3.1.3 from the Apple Developer site, but during the installation process, the iPhone SDK doesn’t appear to be included. I also tested Xcode 3.2.2, but it doesn’t seem to have the iPhone OS 3.1.3 SDK either. Does anyone still have the iPhone OS 3.1.3 SDK available or know where I can find it? Thanks!! Edgar

Hi, I am getting an error stating "Argument passed to call that takes no arguments". I want this Apple Watch App to measure and store RR Intervals from the PPG sensor on the Apple Watch for Heart Rate Variability calculations. Please help me fix this, I can't figure it out. Here is my code: heartbeatQuery = HKHeartbeatSeriesQuery(predicate: predicate, dataReceivedHandler: { (query, timeSinceLastBeat, ended, error) in // Switch to main thread for UI updates DispatchQueue.main.async { if let error = error { print("Heartbeat query error: (error.localizedDescription)") self.fetchErrorMessage = "Heartbeat query error: (error.localizedDescription)" // Consider stopping the workout session if the query fails critically // self.stopWorkoutSession() return } if ended { print("Heartbeat query indicates series ended.") } // Append valid RR intervals if timeSinceLastBeat > 0 { self.rrIntervals.append(timeSinceLastBeat) self.beatCount += 1 } } // End DispatchQueue.main.async }) // End query data handler // --- END OF PROBLEMATIC INITIALIZER --- // Execute the query if it was created successfully It recommends the fix as removing this part: '(predicate: predicate, dataReceivedHandler: { (query, timeSinceLastBeat, ended, error) in // Switch to main thread for UI updates DispatchQueue.main.async { if let error = error { print("Heartbeat query error: (error.localizedDescription)") self.fetchErrorMessage = "Heartbeat query error: (error.localizedDescription)" // Consider stopping the workout session if the query fails critically // self.stopWorkoutSession() return } if ended { print("Heartbeat query indicates series ended.") } // Append valid RR intervals if timeSinceLastBeat > 0 { self.rrIntervals.append(timeSinceLastBeat) self.beatCount += 1 } } // End DispatchQueue.main.async })' But after I remove that it says "Cannot assign value of type 'HKHeartbeatSeriesQuery.Type' to type 'HKHeartbeatSeriesQuery'" PLEASE HELP ME Thanks

I have an iOS app and that has CarPlay enabled. I have Siri capability and the feature has been tested in Car. The voice commands are working perfectly fine. However, I am facing a weird issue as described below, The key NSSiriUsageDescription, is set to custom text in info.plist. After generating archive, I exported and checked the package contents, in which the the key NSSiriUsageDescription was reset to default text(Describe why your app needs Siri access) in the info.plist. I do not have any dynamic build process that's writing to the info.plist. Only the Siri key is being reset, rest of keys like camera/location permissions are intact. Kindly suggest what needs to be done at my end

Hi, in XCode and iOS app. Tried to add Icon, got image size errors. reuploaded with correct sizes and started getting this error. Tried all the solutions from forums, didn't work. Restarted Mac Deleted Assets.xcassets and recreated with AppIcon and AccemntColor Copied "Assets.xcassets" from new dummy Project to main one. I don't have info.plist file Could you please help. Thanks, Bhanu

When testing Energy Impact on Xcode, it shows zero, and other data is normal

Hi, This maybe somewhat confusing, but please bear with me. I currently have an app in the App Store that supports iOS and tvOS. But the tvOS version was a separate app during the development process. I'd like to combine the iOS and tvOS app into one project so its easier to handle and keep track of internally. Can I upload the new Apple TV version to the same place where the current one is, or would I have to delete the current Apple TV version before uploading the newly combined version? I hope I made that clear enough :-) Thank you, Dan Uff

I am trying to perform an unstash operation. I RC on the stash to restore, select "Apply Stashed Changes". It then launches a comparison window to allow me to cherrypick the changes I want to include. However, the button along the bottom, "Apply Changes" is grayed out and remains so no matter what I do. Switching stashes, exiting and restarting xcode. TG i made an emergency project backup right before I did the stash, just for a case like this. Bug? Feature?

Hello All I'm encountering an issue with Keychain access in iOS simulators after reinstalling Xcode. My app successfully accesses the Keychain on physical devices, but simulators consistently fail with errors. Details: App uses Keychain to store API keys Works perfectly on physical devices After Xcode reinstall, simulator Keychain access fails Error logs show "Keychain retrieve failed for key with status: -25300" I've properly configured Keychain Sharing entitlements My entitlements file includes: $(AppIdentifierPrefix)******* What I've tried: Resetting simulators Deleting simulator Keychain databases manually Adding Keychain Sharing capability Ensuring entitlements are correct My app worked fine with simulators before reinstalling Xcode, which suggests something changed in the development environment rather than my code. Has anyone encountered similar issues? Is there a recommended approach for handling Keychain access in simulators that's more resilient to Xcode environment changes? Thanks for your help!

We are trying to create a screentime app using the Family Controls as well as Device activity frameworks. The build succeeds but while pushing to an iphone we are getting an info.plist file for deviceactivity.framework could not be found error. For reference when using the Screentime API a physical device must be used not a simulator. When we remove the device activity framework this error also occurs for the family controls framework. We have added the Family Controls(development) Capability and applied for the distribution capability. We have redownloaded xcode multiple times on the main device, deleted derived data, and redownloaded all of the iphone SDKs and the issue still persists.

Hi everyone, does anyone also have the problem that e.g. the modifier .classEffect() does not work? it is not recognized, although I have the required versions and languages all up to date. I can't get any further, even ChatGPT was at the end of its wisdom 😬. maybe someone has the same problem and a solution for it. many thanks in advance

Xcode 16 seems to „forget“ a swift package within a subfolder of a root package after restart or shut-down. I have the following project structure, which also resembles the directory structure on disc: MyPackage - Package.swift - README.md - Sources - MyPackage - Tests - MyPackageTests - Tools - MyGenerator // <- after restart this folder is not visible in the Xcode project navigator - Package.swift - Sources - main.swift - Tests MyGenerator is a standalone package which is used during development of MyPackage to generate source code files for MyPackage based on text file input. Essentially an executable target script which I can run within its folder with: swift run MyGenerator someInputFile.txt MyPackage does NOT use MyGenerator as a dependency, nor do I want this tool listed as a dependency in MyPackage Package.swift file. Yet MyGenerator is part of the same Git repo, as it documents the changes to the tool on how to generate source code for MyPackage. Both packages are developed in tandem. MyGenerator itself defines dependencies in its Package.swift file, which are unrelated to the functionality of MyPackage. After restart of Xcode or even just a longer shut-down period the MyGenerator subfolder is not visible in the Xcode project navigator, the /Tools folder is empty. I have to manually add the sub package via Add files to "MyPackage" -> Move files to destination every time. How can I solve that Xcode remembers the sub package unter /Tools? Edit: I am using Xcode 16.2

for instance: po [NSBundle mainBundle] 0x0000600002130000 p [NSBundle mainBundle] (NSBundle *) 0x0000600002130000 p [[NSBundle mainBundle] bundlePath] error: Execution was interrupted, reason: EXC_BAD_ACCESS (code=1, address=0x0). The process has been returned to the state before expression evaluation. I am in debug mode

We are renaming the project and a Static Library the is critical to the operation on the app is not found during compiling. We have the same project working fine. We have reviewed the project.pbxproj file and searched for erroneous linking, reviewed the Target settings and there is nothing obviously wrong. (Copied and secured the original) Typically workflow is: Clean Delete Derived Data dir D/l Swift Packages Build/Run The team has many years using Xcode / Swift and the project and this is not clear how to resolve. We have scoured SO and the solutions do not apply. Facts: -No cocoapods -Search Paths all set Linker all set Thoughts?

Hey, I've been having a lot of problems with Xcode 16 not seeing changes made to code in local Swift packages (the packages are inside the root directory of the project). Whenever I make any change like renaming a variable or type, or adding new methods or whatever, autocomplete doesn't see those changes and when I type in that new type/variable manually it gives me an error. However, building the project still works fine, even with the errors never going away. The only way for it to notice the code changes is to clean the project and build it again which takes a long time. At first, I thought this was connected to the new "Explicitly built modules" feature in Xcode 16, but I turned it off and it still happens. Any ideas what I can try? I'm on the latest Xcode version, but this problem has been happening since Xcode 16 originally came out. Thanks! Dennis

After developing the IOS app using XCode, I https://developer.apple.com/account/resources/identifiers/list Created Identifiers (HanBaoAI) and locally created Certificate SigningRequest.certSigningRequest https://developer.apple.com/account/resources/certificates/list Created Certificates (Expiry Date 2026/04/21) and also created profiles (HanBaoAI, Expires 2026/04/21), and then https://appstoreconnect.apple.com/apps I created an app (HanBaoAI) and uploaded it to the official website using Product Archive in xcode. The upload was successful, but the official website's testflight showed 1 (processing). When I refreshed the page, there was no information in testflight. May I ask what the reason is? How to solve it? Please provide complete and detailed solution steps.