How do I get the answer id of an answer in a thread? I would like to know how to create a link to a specific answer of a post so I can refer to a specific answer rather than to the top of the page of the post. I noticed one link went to this address - https://developer.apple.com/forums/thread/67535?answerId=195112022#195112022. That's where I learned about the "answerId" item.

I'm getting message "This operation can fail if the version of the OS on the device is incompatible with the installed version of Xcode. You may also need to restart your mac and device in order to correctly detect compatibility." when I try to run an Xcode iOS project on my iPhone 8. I'm using Xcode 13.2.1 and iOS 15.4 on my iPhone 8. This post in this forums gives the solution to restart the iOS device and I did that and also restarted the mac. My Mac has macOS Monterey 12.3. My Xcode, Mac, and iPhone 8 all have the most recent updates. That post gives an answer for the same problem but with iOS 15.2. I have recently changed settings in my iPhone 8 in Accessibility. Could that affect anything?

I'm trying to figure out what @MainActor means in this definition of UICloudSharingController in Apple Documents found here. Here's what it says: @MainActor class UICloudSharingController : UIViewController I couldn't find much information on Google. This Apple Documentation is the closest thing I found. Is this what i need? Here is the declaration to the MainActor class: @globalActor final actor MainActor

Before I update my macOS to 12.3.1, form 12.3, I want to know if anyone has installed it and if it interfered with Xcode. I heard that macOS updates faster than Xcode so that at times the new macOS requires a new Xcode that hasn't been released yet. I checked Mac App Store, and there isn't a version released after Xcode 13.3 (13E113).

When I click on my Project in Xcode I get a balnk page. I mean the very top level item of the tree in the Project navigator on the left page. The one that has the name of my project. It does this sometimes. I haven't found any recent posts about this. Anyone else have this problem? Anyone know the solution?

In this documentation for completeRequest(returningItems:completionHandler:), there is a box shaded yellow that says: Important If the system calls your block with an expired value of true, you must immediately suspend your app extension. If you fail to do this, the system terminates your extension’s process. How does my app or my Share Extension know when the system calls the block spoken of?

If I have a class property let appDelegate: AppDelegate? = UIApplication.shared.delegate as? AppDelegate Each time appDelegate is accessed, would it return the value at the time it is accessed, or would it return the value the first time it was accessed? I'm trying to understand whether the property above works the same way as let appDelegate: AppDelegate? = { return UIApplication.shared.delegate as? AppDelegate }() The second declaration of the appDelegate property runs the closure the first time the property is accessed and never again. Later references to appDelegate returns the value that was returned the first time the property was accessed.

I ran out of disk space and I think I've come to the point that I need to delete files used by Xcode. Can I delete Simulator altogether? It doesn't look like I can run the latest Xcode without iOS 18 installed with it on my Mac Pro. Is there any way I can exclude iOS 18 support using the current Xcode? Would it be a good option to uninstall the latest Xcode and use a previous version of Xcode instead, since I'm not developing for iOS 18? Since I've been working on only macOS apps, is it possible for me to delete anything that has to do with developing for iOS?

I have this error: [AXRuntimeCommon] AX Lookup problem - errorCode:1100 error:Permission denied portName:'com.apple.iphone.axserver' PID:963 It is preceded by lots of this message, if it matters: [Assert] +[UIInputViewSetPlacementInvisible placementWithPlacement:]: Should not be called with an invisible placement I thought it was because I didn't include a key in Info.plist, but I put keys in there that I thought might be needed. I am using CloudKit sharing and silent push notifications for CloudKit subscriptions, and the Apple documentation says when I set the capabilities for background fetch and remote notifications, the keys would be put in Info.plist by Xcode. Does this have anything to do with the fact that when my app is run for the first time it asks the user for permission to send notifications. If it's a silent notification that I'm using, I thought the documentation meant the user is not notified at all? I have searched on the internet and on stack overflow and in Apple developer forums for a solution. Any help will be appreciated.

What is createdUserRecordName record type metadata used for? I can't find any information on it. I see it in CloudKit dashboard for every record type.

Is there a way to use code pin iOS to pin a message to the top in the Messages app?

Why did I get an error in playground in debug window for this code? print("// MARK: - Start execable code here...") do { let store = CNContactStore() if try await store.requestAccess(for: .contacts) { // Do something with Contacts. let phoneNumber = CNPhoneNumber(stringValue: "903-276-1046") let predicateForContactsMatchingPhoneNumber = CNContact.predicateForContacts(matching: phoneNumber) let contactFetchRequest = CNContactFetchRequest(keysToFetch: thoroughKeysToCompare) contactFetchRequest.predicate = predicateForContactsMatchingPhoneNumber contactFetchRequest.unifyResults = true var contactOfMe: CNContact! = nil try! store.enumerateContacts(with: contactFetchRequest) { contact, stop in contactOfMe = contact stop.pointee = true } let contact = Contact(cnContact: contactOfMe) for property in contact.enumerated() { print("- \(property)") } } else { // Handle if Contacts access is denied. fatalError() } } catch { // Handle any error. print("error requesting access: \(error.localizedDescription)") } Debug window: // MARK: - Start execable code here... Playground execution failed: error: Execution was interrupted, reason: shared-library-event. The process has been left at the point where it was interrupted, use "thread return -x" to return to the state before expression evaluation. * thread #1, queue = 'com.apple.main-thread' frame #0: 0x00007ff80002f931 libobjc.A.dylib`_mapStrHash(_NXMapTable*, void const*) + 73 frame #1: 0x00007ff80002fc7f libobjc.A.dylib`_NXMapMember(_NXMapTable*, void const*, void**) + 35 frame #2: 0x00007ff80003b7ae libobjc.A.dylib`getProtocol(char const*) + 41 frame #3: 0x00007ff8000428e6 libobjc.A.dylib`class_conformsToProtocol + 337 frame #4: 0x00007ff80004ab4e libobjc.A.dylib`-[NSObject conformsToProtocol:] + 47 frame #5: 0x0000000109c27951 UIKitCore`_UIFocusItemContainerIsScrollableContainer + 74 frame #6: 0x0000000109c28e38 UIKitCore`-[_UIFocusEnvironmentContainerTuple initWithOwningEnvironment:itemContainer:] + 194 frame #7: 0x0000000109c28fed UIKitCore`+[_UIFocusEnvironmentContainerTuple tupleWithOwningEnvironment:itemContainer:] + 70 frame #8: 0x0000000109c4f41e UIKitCore`_UIFocusRegionContainerFromEnvironmentAndContainer + 44 frame #9: 0x0000000109c27ed3 UIKitCore`_UIFocusItemContainerAddChildItemsInContextWithArguments + 1162 frame #10: 0x000000010a99c439 UIKitCore`-[UIView _searchForFocusRegionsInContext:] + 962 frame #11: 0x0000000109c6b37f UIKitCore`-[_UIFocusMapSnapshot addRegionsInContainer:] + 4583 frame #12: 0x0000000109c69740 UIKitCore`-[_UIFocusMapSnapshot _capture] + 456 frame #13: 0x0000000109c67fc5 UIKitCore`-[_UIFocusMapSnapshot _initWithSnapshotter:mapArea:searchArea:] + 628 frame #14: 0x0000000109c6cce2 UIKitCore`-[_UIFocusMapSnapshotter captureSnapshot] + 227 frame #15: 0x0000000109c5f450 UIKitCore`-[_UIFocusMap _inferredDefaultFocusItemInEnvironment:] + 147 frame #16: 0x0000000109c2b1cf UIKitCore`-[_UIFocusEnvironmentPreferenceEnumerationContext _inferPreferencesForEnvironment:] + 157 frame #17: 0x0000000109c2abbc UIKitCore`-[_UIFocusEnvironmentPreferenceEnumerationContext _resolvePreferredFocusEnvironments] + 118 frame #18: 0x0000000109c2ab12 UIKitCore`-[_UIFocusEnvironmentPreferenceEnumerationContext prefersNothingFocused] + 31 frame #19: 0x0000000109c2beeb UIKitCore`_enumeratePreferredFocusEnvironments + 198 frame #20: 0x0000000109c2c061 UIKitCore`_enumeratePreferredFocusEnvironments + 572 frame #21: 0x0000000109c2c061 UIKitCore`_enumeratePreferredFocusEnvironments + 572 frame #22: 0x0000000109c2c061 UIKitCore`_enumeratePreferredFocusEnvironments + 572 frame #23: 0x0000000109c2bd11 UIKitCore`-[_UIFocusEnvironmentPreferenceEnumerator enumeratePreferencesForEnvironment:usingBlock:] + 230 frame #24: 0x0000000109c2c747 UIKitCore`-[_UIDeepestPreferredEnvironmentSearch deepestPreferredFocusableItemForEnvironment:withRequest:] + 817 frame #25: 0x0000000109c95837 UIKitCore`-[UIFocusUpdateContext _updateDestinationItemIfNeeded] + 265 frame #26: 0x0000000109c95627 UIKitCore`-[UIFocusUpdateContext _destinationItemInfo] + 22 frame #27: 0x0000000109c95535 UIKitCore`-[UIFocusUpdateContext nextFocusedItem] + 24 frame #28: 0x0000000109c71ea6 UIKitCore`-[UIFocusSystem updateFocusIfNeeded] + 1347 frame #29: 0x0000000109c7608c UIKitCore`__43-[UIFocusSystem _updateFocusUpdateThrottle]_block_invoke + 34 frame #30: 0x000000010a94b971 UIKitCore`-[_UIAfterCACommitBlock run] + 57 frame #31: 0x000000010a94be71 UIKitCore`-[_UIAfterCACommitQueue flush] + 191 frame #32: 0x000000010a3926eb UIKitCore`_runAfterCACommitDeferredBlocks + 782 frame #33: 0x000000010a380fa2 UIKitCore`_cleanUpAfterCAFlushAndRunDeferredBlocks + 96 frame #34: 0x000000010a3b6be1 UIKitCore`_afterCACommitHandler + 58 frame #35: 0x00007ff8003b1c12 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23 frame #36: 0x00007ff8003ac57f CoreFoundation`__CFRunLoopDoObservers + 515 frame #37: 0x00007ff8003acaa2 CoreFoundation`__CFRunLoopRun + 1121 frame #38: 0x00007ff8003ac264 CoreFoundation`CFRunLoopRunSpecific + 560 frame #39: 0x00007ff8003ad234 CoreFoundation`CFRunLoopRun + 40 frame #40: 0x00007ff83755a4e3 libswift_Concurrency.dylib`swift_task_asyncMainDrainQueueImpl() + 35 frame #41: 0x00007ff83755a4b4 libswift_Concurrency.dylib`swift_task_asyncMainDrainQueue + 52 frame #42: 0x00000001015d409f $__lldb_expr32`main at <unknown>:0 frame #43: 0x0000000100e25560 EnumeratedContactsCNContact`linkResources + 256 frame #44: 0x00007ff8003b2986 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12 frame #45: 0x00007ff8003b2148 CoreFoundation`__CFRunLoopDoBlocks + 399 frame #46: 0x00007ff8003ace09 CoreFoundation`__CFRunLoopRun + 1992 frame #47: 0x00007ff8003ac264 CoreFoundation`CFRunLoopRunSpecific + 560 frame #48: 0x00007ff809b4024e GraphicsServices`GSEventRunModal + 139 frame #49: 0x000000010a3827bf UIKitCore`-[UIApplication _run] + 994 frame #50: 0x000000010a3875de UIKitCore`UIApplicationMain + 123 * frame #51: 0x0000000100e256c5 EnumeratedContactsCNContact`main + 357 frame #52: 0x0000000100fbb384 dyld_sim`start_sim + 10 frame #53: 0x000000010943341f dyld`start + 1903```

I have been getting these error messages in debug window in Xcode: 2023-06-06 07:46:15.412684-0500 Courier[8456:442818] [LayoutConstraints] Unsupported layout off the main thread for _UIModernBarButton with nearest ancestor view controller, UINavigationController 2023-06-06 07:46:15.413268-0500 Courier[8456:442818] [Assert] -[UIImageView _invalidateImageLayouts] must be called on the main queue 2023-06-06 07:46:15.413730-0500 Courier[8456:442818] [Assert] -[UIImageView _layoutForImage:inSize:cachePerSize:forBaselineOffset:] must be called on the main queue (lldb) The messages come when my code crashes and gives this error message in a red ribbon in the editor window: Thread 10: EXC_BREAKPOINT (code=1, subcode=0x10515fd44) In the Debug navigator on the left pane of Xcode, it shows the code stopped at: #0 0x000000010515fd44 in _dispatch_assert_queue_fail () This is what shows at the end in the editor window. At the very end is where the error message in the red ribbon shows: 0x10515fd10 <+68>: add x9, x9, #0xf2f ; "BUG IN CLIENT OF LIBDISPATCH: Assertion failed: " 0x10515fd14 <+72>: stp x9, x8, [sp] 0x10515fd18 <+76>: adrp x1, 65 0x10515fd1c <+80>: add x1, x1, #0xefa ; "%sBlock was %sexpected to execute on queue [%s (%p)]" 0x10515fd20 <+84>: sub x0, x29, #0x18 0x10515fd24 <+88>: bl 0x10519cfc8 ; symbol stub for: asprintf 0x10515fd28 <+92>: ldur x19, [x29, #-0x18] 0x10515fd2c <+96>: str x19, [sp] 0x10515fd30 <+100>: adrp x0, 65 0x10515fd34 <+104>: add x0, x0, #0xf65 ; "%s" 0x10515fd38 <+108>: bl 0x1051986b0 ; _dispatch_log 0x10515fd3c <+112>: adrp x8, 98 0x10515fd40 <+116>: str x19, [x8, #0x268] -> 0x10515fd44 <+120>: brk #0x1 I have no idea which code is causing the error, so I don't even know what code to put in my question. I created a symbolic breakpoint with 'LayoutConstraints' in the Symbol field. It is never tripped. I get no purple warnings that says a line of code should not be in the main thread. I have no idea where to go from here. I don't ind anything when I do a search in the internet that is narrowed down to address my error. I am running the code on an iPhone 13 Pro Max device with iOS 16.5. I am using Xcode 14.3 on a Mac Pro running Ventura 13.4

What are guidelines for numbering the build number? Should it just start with 0 and increment by one each time I archive a project for distribution?

I need any kind of help I can get on this question and am open to any solutions or workarounds. When I archive FileManager.ubiquityIdentityToken with NSKeyedArchiver.archivedData(withRootObject:requiringSecureCoding:), what should I set the second parameter to in order to be able to unarchive later, and how do I unarchive the Data object using unarchivedObject(ofClass:from:) or any other method of NSKeyedUnarchiver? My code currently uses the deprecated method of archivedData(withRootObject:), which gives me a code time warning saying: 'archivedData(withRootObject:)' was deprecated in iOS 12.0: Use +archivedDataWithRootObject:requiringSecureCoding:error: instead I'm getting code time error messages in red for the argument to archivedData(withRootObject:requiringSecureCoding:) which is declared as type Any. I tried different arguments. The one I this should work is (NSCoding &amp; NSCopying &amp; NSObject).Type, which generates two error messages: Static method 'unarchivedObject(ofClass:from:)' requires that '(NSObject &amp; NSCoding &amp; NSCopying).Type' inherit from 'NSObject' Type '(NSObject &amp; NSCoding &amp; NSCopying).Type' cannot conform to 'NSCoding' Setting the argument to (NSCoding &amp; NSCopying &amp; NSObject) generates the error message: 'NSObject &amp; NSCoding &amp; NSCopying' cannot be used as a type conforming to protocol 'NSCoding' because 'NSCoding' has static requirements I haven't been able to discover what that means that 'NSCoding' has static I get the idea to use (NSCoding &amp; NSCopying &amp; NSObject) because when run code: print("type of FileManager.default.ubiquityIdentityToken: \(type(of: FileManager.default.ubiquityIdentityToken))") the debug window shows type of FileManager.default.ubiquityIdentityToken: Optional&lt;NSCoding &amp; NSCopying &amp; NSObject&gt; but when I run the following code print("type of FileManager.default.ubiquityIdentityToken: \(type(of: FileManager.default.ubiquityIdentityToken!))") I get the following in the debug window type of FileManager.default.ubiquityIdentityToken: _NSInlineData I read on stackoverflow that "_NSInlineData" is not made available to us by Apple. I'm open to doing this any other way, not necessarily with NSKeyedArchiver or NSKeyedUnarchiver, including using unsafe pointers if necessary. In one of Apple's documentation or sample Xcode projects, I found code to check the login status of a user on iOS when an app logs on by checking FileManager.ubiquityIdentityToken and to check the current status with the previous status by checking the ubiquityIdentityToken that was saved in UserDefaults. Is there a better way of doing this?