@Claude31 Hi, thankyou for your reply. I set a breakpoint in applicationDidFinishLaunching: The launch process stops at line 23 (Thread 1) and after two clicks the project runs, but i still could not use debugging. I use macOS 11.2.1, Xcode 11.7 No external frameworks, the shown sample is untouched, except the change of the deployment target to 15.0 After upgrade to Big Sur I used 12.4, then 11.7

@Claude31 This hint was valuable ! Something that may you interesting: Xcode 12.4 NSStepper.size (Large) is 0,0 , maybe a placeholder ?

@ szymczyk, I must tell you first, i'm not a professional, mathematic is the apple of my eye since I'm no more working for bread and butter. So it is, I assume trashing would be the easier solution if I would know how. Maybe you or you has an explanation (a link ?) in detail how to do this.

Yesterday I found in Application Support tree documents : Multiline CallHistory.storedata CallHistory.storedata-shm CallHistory.storedata-wal BlockQuote I moved the docs to an external device and killed the originals, today they were at place again. I would setup a test app, but how do I make ad hoc a failure, so that CD trashes to have a reason to trash the store ?

Yesterday I found in Application Support/CallHistoryDB: Multiline CallHistory.storedata CallHistory.storedata-shm CallHistory.storedata-wal BlockQuote I moved the folder to an external device and killed the original. I setup a new project StoreData, killed the StoreData.xcdatamodeld and replaced it with the model of my project. This works, but before a must Sandbox uncheck.

Sorry, wrong button pressed.

@OOPer I changed the project format to 9.3 and the Error disappeared. I changed back to 12.4 : No error. I know almost nothing about Metal and I hope the community help me when i stuck in the future. Uwe

Hi, I solved the problem with trial and error. The octahedron in the top sight gave me limits and I changed [0,0,-10] to [-0.25,-0.25,-10];

Edit: The two lines list is fine too.

Sorry, my mistake, I deleted the class, closed Xcode and began new, I got no error. Maybe the reason is that I use Sierra. In the near future I buy a new iMac, then I need your support again.

My fault, the Reason is : Xcode 4 has the default "Automatically Run" and 14 has "Manually Run". Thank you for your reply.

Edit: selector: #selector: ( NSTableView.rowSelectionDidChange(_:)), name:"NSTableViewSelectionDidChangeNotification", object: nil)

No framework, the projects I mentioned arose on Xcode 4.2, maybe a difference .

I corrected the notification and got error : [center.addObserver: self, selector:#selector(rowSelectionDidChange(_:)), name:Notification.Name( selectionDidChangeNotification), object:nil] // error: Expected declaration rowSelectionDidChange(_:) do not belong to tableView, it is the function I want to use if(arrayController != nil){ var selected:[] as Any var arranged:[] as Any /* error : Consecutive statements on a line must be separated by ';' Insert ';' Expected element type Insert ' <#type#>' Expected expression */ selected: NSArray = [arrayController.selectedObjects]; arranged = [arrayController.arrangedObjects]; } } ` p.s. please give me a link of your communication rules .

Hi Claude, it is Swift code, this project shall be the twin of my objective-c what must close because of deprecation of OpenGL. The first what I want is getting access to managedObjects, I send you the AppDelegate : import Cocoa import CoreData @main class AppDelegate: NSObject, NSApplicationDelegate { @IBOutlet weak var arrayController: NSArrayController! @IBOutlet weak var tableView: NSTableView! @objc var currentManagedObject: [NSManagedObject]; // error: func myPrint() { if(arrayController != nil){ print(arrayController!) }else { print("arrayController is NIL") } if(tableView != nil){ print(tableView!) }else { print("tableView is NIL") } } var center = [NotificationCenter.default] [center.addObserver: self, selector:#selector(rowSelectionDidChange(_:)), name:Notification.Name( selectionDidChangeNotification), object:nil] // error: Expected declaration @objc func rowSelectionDidChange(_ notification: Notification){ if(arrayController != nil){ var selected:[] as Any var arranged:[] as Any // error : /* Consecutive statements on a line must be separated by ';' Insert ';' Expected element type Insert ' <#type#>' Expected expression */ selected: NSArray = [arrayController.selectedObjects]; arranged = [arrayController.arrangedObjects]; if((selected.count) >= 0){ // ... } } } func applicationDidFinishLaunching(_ aNotification: Notification) {} func applicationWillTerminate(_ aNotification: Notification) {} func applicationSupportsSecureRestorableState(_ app: NSApplication) -> Bool { return true} } I hope it helps you to help me