LLDB crash

My Xcode project fails to run with the following crash log any time I use a new SwiftUI symbol such as ConcentricRectangle or .glassEffect. I've tried using the legacy linker to no avail. It compiles perfectly fine, and I've tried targeting just macOS 26 also to no avail. This is a macOS project that's compiled just fine for years and compiles and runs on macOS going back to 13.0. Failed to look up symbolic reference at 0x118e743cd - offset 1916987 - symbol symbolic _____y_____y_____y_____yAAyAAy_____y__________G_____G_____yAFGGSg_ACyAAy_____y_____SSG_____y_____SgGG______tGSgACyAAyAAy_____ATG_____G_AVtGSgtGGAQySbGG______Qo_ 7SwiftUI4ViewPAAE11glassEffect_2inQrAA5GlassV_qd__tAA5ShapeRd__lFQO AA15ModifiedContentV AA6VStackV AA05TupleC0V AA01_hC0V AA9RectangleV AA5ColorV AA12_FrameLayoutV AA24_BackgroundStyleModifierV AA6IDViewV 8[ ]012EditorTabBarC0V AA022_EnvironmentKeyWritingS0V A_0W0C AA7DividerV A_0w4JumpyC0V AA08_PaddingP0V AA07DefaultgeH0V in /Users/[ ]/Library/Developer/Xcode/DerivedData/[ ]-grf

When disabling the opacity slider of color panels, my app crashes with unsatisfiable layout constraints. Feel free reproduce with a minimal test project: A macOS app based on the Xcode 26.0 template with only one line added to the ViewController's viewDidLoad() function: NSColorPanel.shared.showsAlpha = false The issue doesn't occur if this property is set to true or not set at all. I just filed a corresponding bug report (FB20269686), although I don't expect any feedback from Apple ... as numerous issues I reported were never updated or commented at all (after migrating from RADARs).

Hi everyone - I'm seeing an issue specifically on iOS26 where we instantiate a few storyboard items programmatically and pull their restoration identifier. On iOS26, these identifiers are null and cause a crash, but the assignments are on the storyboard and there has been no change to that logic. On iOS 18, for example, there is no crash and the identifiers are pulled properly. Anybody else seeing this?

Our app has an old codebase, originating in 2011, which started out as purely Objective-C (and a little bit of Objective-C++), but a good amount of Swift has been added over time as well. Lots of Objective-C and Swift inter-op, but in general very few 3rd party libraries/frameworks. Like many other codebases of this size and age, we have a good amount of accumulated tech debt. In our case, that mostly comes in the form of using old/deprecated APIs (OpenGL primary amongst them), and also using some ‘tricks’ that allowed us to do highly customized UI popups and the like before they were officially supported by iOS, but unfortunately are still in use to this day (i.e. adding views directly to the UIWindow such that that are ‘on top’ of everything, instead of presenting a VC). Overall though, the app is very powerful and capable, and generally has a relatively low crash rate. About two months ago, we started seeing some new crashes that seemed to be totally unrelated to the code changes that wer

Hello Developer Support, I have the following code and the following crash. How can the swift data model unable to decode and yet able to display the decoded value at the same time?! What's missing here? CODE: @Model final class DisplayCache { init(point: MKMapPoint) { self.point = point } var point: MKMapPoint } CRASH SwiftData/ModelCoders.swift:1069: Fatal error: Unable to decode this value MKMapPoint(x: 74358466.66307731, y: 97927933.41833577)

I am using the sample app from: https://developer.apple.com/videos/play/wwdc2025/277/?time=763 I installed this on an Iphone 15 Pro with iOS 26 beta 1. I was able to get good transcription with it. The app did crash sometimes when transcribing and I was going to post here with the details. I then installed iOS beta 2 and uninstalled the sample app. Now every time I try to run the sample app on the 15 Pro I get this message: SpeechAnalyzer: Input loop ending with error: Error Domain=SFSpeechErrorDomain Code=10 Cannot use modules with unallocated locales [en_US (fixed en_US)] UserInfo={NSLocalizedDescription=Cannot use modules with unallocated locales [en_US (fixed en_US)]} I can't continue our our work towards using SpeechAnalyzer now with this error. I have set breakpoints on all the catch handlers and it doesn't catch this error. My phone region is United States

I've instilled Tahoe and Xcode 26(17A324) and the combination is virtually unusable, particularly the latter I'm no longer able to build projects reliably. My workflow is completely disrupted by a spinning beach ball so just a warning that you might want to delay until taking the plunge as I should have done. Fortunately, I have a back sequoia machine I can use instead.

I'm implementing SwiftData with inheritance in an app. I have an Entity class with a property name. This class is inherited by two other classes: Store and Person. The Entity model has a one-to-many relationship with a Transaction class. I can list all my Entity models in a List with a @Query annotation without a problem. However, then I try to access the name property of an Entity from a Transaction relationship, the app crashes with the following error: Thread 1: Fatal error: Never access a full future backing data - PersistentIdentifier(id: SwiftData.PersistentIdentifier.ID(backing: SwiftData.PersistentIdentifier.PersistentIdentifierBacking.managedObjectID(0x96530ce28d41eb63 ))) with Optional(F07E7E23-F8F0-4CC0-B282-270B5EDDC7F3) From my attempts to fix the issue, I noticed that: The crash seems related to the relationships with classes that has inherit from another class, since it only happens there. When I create new data, I can usually access it without any problem. The crash