When I try to compile with XCode an app that is about 10 years old gives me the following compiler errors in JSONModel.h header file. There are only 4 lines in that file. Content of file with the error messages. XSym <- Uknown type name ‘Xsym’ 0075 <- Expected identifier or ‘(’ a7b090c047283ff76fc7f1def7ba7425 ../../../JSONModel/JSONModel/JSONModel/JSONModel.h The app was originally compiled wit XCode 3.2, targeting iPhone 7 Now I am using XCode 16, targeting iPhone 12. Original coder is unaccessible. I am very new to this environment and any guidance / assistance is greatly appreciated. Please let me know if it is more appropriate to post this somewhere else.

When trying to use the watchOS preview the simulator fails to load and throws about 15 errors. Clearly the simulator is trying to load all of the iOS packages to the watchOS simulator. However, these packages clearly aren't included in the watchOS app. Furthermore, both apps build successfully to the main simulators, just not the previews. Having a list of errors that simply should not be there is a pretty big annoyance when something is going wrong. How do I fix this?

iOS simulator way slower to launch after updating to Xcode Version 16.2 (16C5032a). macOS 15.3.1 (24D70) MacBook Air M1, 8GB

I was my understanding that you're supposed to be able to open a .ips crash log in Xcode and see pretty much what you would see if the app had been running in the debugger when it crashed. But the addresses in my app don't get symbolicated. I opened the .ips in the same project and same version of Xcode that was used to create the app. The .dSym file is around, and I can use it to symbolicate using the atos tool. What am I missing?

I have this code: var eventIn = kevent(ident: UInt(self.socket), filter: Int16(EVFILT_WRITE), flags: UInt16((EV_ADD | EV_ENABLE)), fflags: 0, data: 0, udata: nil ) I looked at it and thought why do I have those extra parentheses? So I changed it to var eventIn = kevent(ident: UInt(self.socket), filter: Int16(EVFILT_WRITE), flags: UInt16(EV_ADD | EV_ENABLE), // changed line! fflags: 0, data: 0, udata: nil ) and then kevent gave me EBADF. Does this make sense to anyone?

Despite Xcode being the one and most used IDE for iOS, it is far from perfect. I have used many tools in my career and here are some features, that would make it much better or what I miss from other IDEs. I encourage others to chip in discussion and lets all hope, Apple starts to improve Xcode. Will put each issue in separate comment below. Slow debugger: not sure what bloat Xcode has or what it is doing, but sometimes it can take more than 10 seconds from breakpoint firing to actually see values. Moreover when debugging SwiftUI or something objC I have to drill down to see value of property or use po and p command and hope it works. SwiftUI views and states are a big pain to debug, to see what is changing a value I have to always use didSet trick or some other black magic. Is it too hard to make it easier? Breakpoints with condition can take up to 1 minute to load and I have M1 Max MBP. Just tried cursor IDE few days ago and breakpoints are much faster and without too much bloat in variable inspector.

Hey Guys , I think forcing people to download Simulator along side SDK will increase hude download size, is not a good experience for developers. Make simulator download optional and you can keep it ticked by default inside (Settings/Components/IOS XX.X Support) for beginner developers , but for advanced developer there should be option to untick it and reduce huge download size. If it doesn't result in huge download size,then we have took a wrong turn somewhere.

in xcode i have select the developer team. but show some error that is here, "Communication with Apple failed Your team has no devices from which to generate a provisioning profile. Connect a device to use or manually add device IDs in Certificates, Identifiers & Profiles. https://developer.apple.com/account/" and show this error also "No profiles for 'com.kuntaldoshi.homeautomation' were found Xcode couldn't find any iOS App Development provisioning profiles matching 'com.kuntaldoshi.homeautomation'."

When working on a project, I would like to open a file from a previous project in a side-by-side window for reference, so I can view and adapt parts of the previous file into a file in the current project. I don't want the previous file to be part of the current project. Is this possible? If so, how?

I'm working on a macOS app that I want to give "Full Disk Access". When I run from Xcode, I get "permission denied" errors when reading a file in my home directory. What can I do so that I can run and debug from Xcode? I dragged the binary from the derived data folder to the System Preferences list for Full Disk Access, but that seems to do nothing.

Dear Developers, I am having some problems with Reality Composer Pro on Mac. Specifically, I don't understand how to manage some timeline functions. I have an object that has a double animation, an opening animation and a closing animation. On a first tap the object should open through animation 1, while on the second tap the object should close through animation 2. Only the two animations conflict. In addition, animation 1 does not stop at the last frame but returns the object to the position of frame 0. Do you have any solutions? Thank you all

I am so perturbed by Xcode's predictive code completion (PCC) - it operates like a 5 year old boy who constantly distracts me code by throwing up entirely irrelevant code sections even if there is nothing to complete. Even in cases where I have a long set of references (object dot something dot something etc), and PCC would be really handy, its list rarely has what is in the immediate scope of my source line as the first couple of suggestions. Additionally, its code suggestions (fully lines of code, structs etc) sort of skirt what might be possible mixed with code from elsewhere in my app. Quality of PCC is awful and at this point with CoPilot doing such a great job, chatGPT lose integration with Xcode, what is Apple thinking, are they serious about their hijacked AI term? I am open to suggestions, what (the heck) could I be doing wrong or should I refresh something. Right now I have turned off PCC, it is not helping.

I am using ARKit with RealityKit to scan objects using LiDAR on iOS. I can generate an OBJ file from ARMeshAnchors, but I am missing the texture export (JPG + MTL). What I Have So Far: Successfully capturing mesh using ARMeshAnchor. Converting mesh into MDLAsset and exporting .obj. I need help generating the .jpg texture and linking it to the .mtl file. private func exportScannedObject() { guard let camera = arView.session.currentFrame?.camera else { return } func convertToAsset(meshAnchors: [ARMeshAnchor]) -> MDLAsset? { guard let device = MTLCreateSystemDefaultDevice() else {return nil} let asset = MDLAsset() for anchor in meshAnchors { let mdlMesh = anchor.geometry.toMDLMesh(device: device, camera: camera, modelMatrix: anchor.transform) // Apply a gray material to the mesh let material = MDLMaterial(name: "GrayMaterial", scatteringFunction: MDLScatteringFunction()) material.setProperty(MDLMaterialProperty(name: "baseColor", semantic: .baseColor, float3: SIMD3(0.5, 0.5, 0.5))) // Gray color if let submeshes = mdlMesh.submeshes as? [MDLSubmesh] { for submesh in submeshes { submesh.material = material } } asset.add(mdlMesh) } return asset } func export(asset: MDLAsset) throws -> URL { let directory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first! let url = directory.appendingPathComponent("scaned.obj") if MDLAsset.canExportFileExtension("obj") { do { try asset.export(to: url) return url } catch let error { fatalError(error.localizedDescription) } } else { fatalError("Can't export USD") } } if let meshAnchors = arView.session.currentFrame?.anchors.compactMap({ $0 as? ARMeshAnchor }), let asset = convertToAsset(meshAnchors: meshAnchors) { do { let url = try export(asset: asset) showScanPreview(url) } catch { print("export error") } } } extension ARMeshGeometry { func vertex(at index: UInt32) -> SIMD3<Float> { assert(vertices.format == MTLVertexFormat.float3, "Expected three floats (twelve bytes) per vertex.") let vertexPointer = vertices.buffer.contents().advanced(by: vertices.offset + (vertices.stride * Int(index))) let vertex = vertexPointer.assumingMemoryBound(to: SIMD3<Float>.self).pointee return vertex } // helps from StackOverflow: // https://stackoverflow.com/questions/61063571/arkit-3-5-how-to-export-obj-from-new-ipad-pro-with-lidar func toMDLMesh(device: MTLDevice, camera: ARCamera, modelMatrix: simd_float4x4) -> MDLMesh { func convertVertexLocalToWorld() { let verticesPointer = vertices.buffer.contents() for vertexIndex in 0..<vertices.count { let vertex = self.vertex(at: UInt32(vertexIndex)) var vertexLocalTransform = matrix_identity_float4x4 vertexLocalTransform.columns.3 = SIMD4<Float>(x: vertex.x, y: vertex.y, z: vertex.z, w: 1) let vertexWorldPosition = (modelMatrix * vertexLocalTransform).columns.3 let vertexOffset = vertices.offset + vertices.stride * vertexIndex let componentStride = vertices.stride / 3 verticesPointer.storeBytes(of: vertexWorldPosition.x, toByteOffset: vertexOffset, as: Float.self) verticesPointer.storeBytes(of: vertexWorldPosition.y, toByteOffset: vertexOffset + componentStride, as: Float.self) verticesPointer.storeBytes(of: vertexWorldPosition.z, toByteOffset: vertexOffset + (2 * componentStride), as: Float.self) } } convertVertexLocalToWorld() let allocator = MTKMeshBufferAllocator(device: device); let data = Data.init(bytes: vertices.buffer.contents(), count: vertices.stride * vertices.count); let vertexBuffer = allocator.newBuffer(with: data, type: .vertex); let indexData = Data.init(bytes: faces.buffer.contents(), count: faces.bytesPerIndex * faces.count * faces.indexCountPerPrimitive); let indexBuffer = allocator.newBuffer(with: indexData, type: .index); let submesh = MDLSubmesh(indexBuffer: indexBuffer, indexCount: faces.count * faces.indexCountPerPrimitive, indexType: .uInt32, geometryType: .triangles, material: nil); let vertexDescriptor = MDLVertexDescriptor(); vertexDescriptor.attributes[0] = MDLVertexAttribute(name: MDLVertexAttributePosition, format: .float3, offset: 0, bufferIndex: 0); vertexDescriptor.layouts[0] = MDLVertexBufferLayout(stride: vertices.stride); let mesh = MDLMesh(vertexBuffer: vertexBuffer, vertexCount: vertices.count, descriptor: vertexDescriptor, submeshes: [submesh]) return mesh } } What I Need Help With: How do I generate the JPG texture from the AR scene? How do I save an MTL file linking the OBJ model to the texture? How can I correctly apply the texture when viewing the OBJ in an external 3D viewer? I appreciate any guidance, including sample code or resources! If you have a complete working solution, I’d love to discuss further via private channels.

I have 2 versions of my app. This version I issued the "Clean Build Folder..." command. After doing so it will no longer compile/build. I've restored the directory to a copy prior to the Clean Build Folder with same result. The other version of this code will build and execute. Command SwiftCompile failed with a nonzero exit code /Users/martinwoscek/develop/iOS_switft_DEVELOP/FullScreenCamera-master-no_drivemonitor/AV Foundation/Base.lproj/LaunchScreen.storyboard: Encountered an error communicating with IBAgent-iOS. Showing Recent Issues . . . Command SwiftCompile failed with a nonzero exit code Command SwiftCompile failed with a nonzero exit code Build failed 2/11/25, 8:15 AM 1.4 seconds

Hello, I am doing the SwiftUI tutorial with Xcode 16.2 For the watch app the simulator working fine but the preview keep saying “This app cannot run on the selected target device.” while the preview is working …… For the macOS part the simulator working fine but the preview is totally broken with -> ”ContentView.swift” not found in any targets. While it is correctly added to the target … Please fix or make tutorial clear.

Ever since I updated to Xcode 16.2, no device running iOS 18 shows up in Xcode. I can see the devices in Finder and Apple Configurator, but not in Xcode. When I run xcrun devicectl list devices, I also do not see the devices, so I assume the issue is in CoreDevice somewhere. I've tried many things I've seen suggested in similar threads (toggling developer mode, reinstalling Xcode, using a different physical cable, etc) and so far nothing has helped. This same behavior is also happening for my entire development team, which has been as difficult as you might imagine. Any info on how to resolve this would be much appreciated.

HStack{ FormLable(text: NSLocalizedString("Color", comment: "")) Spacer() Image(systemName: "circle.fill") .font(.system(size: AppFontSize.baseSize.size() * 1.2, weight: .medium)) .foregroundColor(color) .overlay(ColorPicker("Color", selection: $color).labelsHidden().opacity(0.015)) } This is how I use the color picker. I used the same code in two different apps, and the color picker appeared in one app but not in the other. By the way, I upgraded Xcode to the latest version.

I have an Iphone application in OBJECTIVE-C and I wanted to and an iPad version . I added the required values in the .plist via the editor (and and iPad to the hardware selection) and in the info of the appli : IPAD screen was not loaded , with no error message on the console. Absolutely no error message. Simulator and real iPad produce the same results. I did a new more test . File, new, file from template and created a new project (objective-c) with a simple Dashboard and a ViewController that is installed by default and populated by Xcode. It works without Errors with iPhone. If I add the iPad values in the plist and info : no IPAd screen loaded, no error in the console. Another test , this time I ask Swift as langage (I dont use this langage it was just for a test). Create a new project, simple Swift application with a storyboard and a ViewController. I add the .plist and.info value (Screenshot) an iPad storyboard and the same exact problem arrives. No loading of the iPad storyboard, No error message in the console. And iPad storyboard is correct , I I force it as the main screen , in "storyboard name" , it is loaded without and error on the iPad and the iPhone. but i dont want that, I want TWO storyboard and the iPad users sent to their interface, with their launchimage IS THIS A BUG IN XCODE 16.2 ? DID I MISS SOMETHING ?I did not found and other "iPad" strings to add to plist/info. I use Xcode Version 16.2 (16C5032a)

I'm attempting to test an in app purchase for my app on my phone (not in a simulator, not sandbox testing). I'm getting an error that certificate check has failed. Could this have anything to do with the SHA-1 warnings that Apple has recently mentioned? I've tried regenerating my StoreKit file, cleaning the build, restarting XCode, resetting all of my devices purchases from the Debug > StoreKit menu, all with no luck. Any help would be greatly appreciated. 2025-01-10 19:52:19.974564-0500 MyApp[74478:30675548] [Default] Failed to verify certificate chain due to client recoverable failure: Error Domain=NSOSStatusErrorDomain Code=-67818 "“StoreKit Testing in Xcode” certificate is expired" UserInfo={NSLocalizedDescription=“StoreKit Testing in Xcode” certificate is expired, NSUnderlyingError=0x3027b9d40 {Error Domain=NSOSStatusErrorDomain Code=-67818 "Certificate 0 “StoreKit Testing in Xcode” has errors: Certificate is not temporally valid;" UserInfo={NSLocalizedDescription=Certificate 0 “StoreKit Testing in Xcode” has errors: Certificate is not temporally valid;}}} 2025-01-10 19:52:19.978233-0500 MyApp[74478:30675483] [Default] Failed to verify signature for Transaction, will assume invalid: failedToVerifyCertificateChain Purchase succeeded but verification failed: Certificate Chain Invalid Failed to purchase Premium: invalidCertificateChain saveUnencrypted: Started saving form_info.json saveUnencrypted: Saved form_info.json to Documents Directory in 9 ms (JSONEncoder chunk-based copy-on-write, 1 chunks) at ...

I was just comparing the build settings of two of my apps to try to understand why they behave differently (one of them uses the full screen on iPad, and the other one has small top and bottom black borders, although that's not the issue I want to discuss now). I saw that the option CLANG_CXX_LANGUAGE_STANDARD is set to gnu++0x for the older project, while it's set to gnu++17 for the newer one. The documentation lists different possible values and also a default one: Compiler Default: Tells the compiler to use its default C++ language dialect. This is normally the best choice unless you have specific needs. (Currently equivalent to GNU++98.) If it really is the best choice (normally), why is it not used when creating a new default Xcode project? Or is it better to select a newer compiler version (GNU++98 sounds quite old compared to GNU++17)? Also, does this affect Swift code?