Thanks for showing your code. You may need to use Answers to show additional info well formatted. I do not have enough time to watch the session video carefully, but your code seems to be taken from the session video or the sample code for the session. It is intended to be compiled with Swift 5.5/Xcode 13. Please try changing .listStyle(.carousel) to .listStyle(CarouselListStyle()). But there may be other parts you need Swift 5.5.

That error depends on other parts of your code. Can you show your code enough to reproduce the issue?

keyboardGetUnicodeString will return '\r' only...  As far as I tried, I could not find the behavior that return '\r' only. How did you checked it? Your code is not capable of showing control characters. Please try changing print to debugPrint and tell us what you see.

it works just with the valori property but not with the date property Seems the description is not correct enough. When I input 2021 into the textField, the list keeps showing the entries containing 2021. You are using "\($0)".contains(text) for filtering, but do you really understand what sort of Strings are generate by "\($0)"? As far as I tested with Xcode 12.5/iOS 14.5 Simulator, they were as follows: LifetimeInputsModel(id: FB973EBF-D56B-438D-BB8B-5EFDFA63983A, valori: 300.0, date: 2021-06-13 21:35:27 +0000) LifetimeInputsModel(id: 3A57A94C-79EA-4430-90B6-D415C460C243, valori: 200.0, date: 2021-06-14 21:35:27 +0000) Do you want to make the word LifetimeInputsModel hit all entries? Apps should not rely on the default String representations generated by Swift runtime. One possible way, to control the String representation of a struct would be adding CustomStringConvertible conformance. Please try adding this extension to your project and see if the filter works as expected: extension LifetimeInputsModel: CustomStringConvertible { var description: String { return "\(String(format: "%.0f", valori)) \(dateFormatter.string(from: date))" } }

You should better use Code Block when you show some code. If you can edit your post, please try.

I'm not sure if I can help you or not, but showing your code would make your post more appealing and you would get more chance to get better replies sooner. Unfortunately, editing feature is strongly restricted in the dev forums and you may need to use answers to show additional info.

This is not a place to apply to be a beta tester of some specific app. You should better contact to the developer of the app and ask if it is possible.

CocoaPods is not a tool supported by Apple. You should better visit the support sites or communication sites of CocoaPods and/or each framework to get better responses sooner.

This is the output when I tested your code on iOS 15 simulator: [start] longCalculation / is on main thread: false [start] longCalculation / is on main thread: false [end] longCalculation / is on main thread: false [end] longCalculation / is on main thread: false [end] action / is on main: true Can you clarify your environment used for the test?

One possible solution would be adding a computed property: extension Item { var nameDefaulted: String {name ?? "default"} } struct ItemTable: View { let items: [Item] var body: some View { Table(items) { TableColumn("Name", value: \.nameDefaulted) } } }

You should better use Code Block properly which improves readability and increases the chance to get better responses sooner. But generally, Swift for Ubuntu cannot be the main topic of the dev forums. This site is mainly intended to discuss and share info about Apple's frameworks on Apple's platforms. And the final Swift 5.5 is not released yet. Foundation types such as URLSession would be ported into Ubuntu, but it may not be the same time as the Swift 5.5 for Apple's platforms is released. You should better visit swift.org and get info about the status of Swift 5.5 for Ubuntu there.

NSAttributedString is given a new initializer taking an AttributedString. convenience init(_ attrStr: AttributedString) You can easily convert an AttributedString to an NSAttributedString: var astr = AttributedString("Hello, world!") if let range = astr.range(of: "world") { astr[range].font = .boldSystemFont(ofSize: 22) } label.attributedText = NSAttributedString(astr)

Generally, you would see some more info in the debug console when you get Thread 1: signal SIGABRT. Better check it again. But when you get it on the line let destinationVC = segue.destination as! ViewController, the most suspicious thing is segue.destination being non-ViewController. Have you checked which segue is invoked and what is set in the Custom Class of the target view controller?

is it possible to use the app for sub version of IOS like iPhone 6s devices ? I may be mistaking what you mean by sub version of IOS, but you should better check the documentations of SwiftUI components. For example, View -- a very basic component in SwiftUI -- has an Availability notation as iOS 13.0+. Generally, SwiftUI was introduced in iOS 13 and SwiftUI apps run only on devices with iOS 13 or later. If the app may be using some feature available only in later iOS, it will run on devices with such iOS versions.

Can you try something like this? func peripheralManager(_ peripheral: CBPeripheralManager, didAdd service: CBService, error: Error?) { let optPeripheral: CBPeripheral? = service.peripheral guard let peripheral = optPeripheral else { return } let result: CBPeripheral = peripheral print ("\(result)") }