I've added file provider extension target to my macOS app. From the app I call NSFileProviderManager.add() to add my extension domain. Unfortunately this call fails with a mysterious error message: Domain=NSFileProviderErrorDomain Code=-2001 "The application cannot be used right now."  I'm looking for a possible cause for this error. My app is not sandboxed, but extension is. The app and extension share the same application group.

I am working on uploading pdf file to server using UIDocumentPicker. It selects the file correctly but while fetching the file content it is throwing this error: Fatal error: 'try!' expression unexpectedly raised an error: Error Domain=NSCocoaErrorDomain Code=257 "The file “file-sample_150kB.pdf” couldn’t be opened because you don’t have permission to view it." UserInfo={NSFilePath=/private/var/mobile/Library/Mobile Documents/com~apple~CloudDocs/Downloads/file-sample_150kB.pdf, NSUnderlyingError=0x28225c5a0 {Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"}} Here my code for uploading file to server. func uploadDocumentRequest(targetVC : UIViewController, args: [String : String], url: URL) { let boundary = generateBoundaryString() var body = Data() for (key, value) in args { body.append(Data("--\(boundary)\r\n".utf8)) body.append(Data("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n".utf8)) body.append(Data("\(value)\r\n".utf8)) } let filePathKey = "file" let filename = "doc_file.pdf" let fileData: Data = try! Data(contentsOf: url) let mimetype = "application/pdf" body.append(Data("--\(boundary)\r\n".utf8)) body.append(Data("Content-Disposition: form-data; name=\"\(filePathKey)\"; filename=\"\(filename)\"\r\n".utf8)) body.append(Data("Content-Type: \(mimetype)\r\n\r\n".utf8)) body.append(fileData) body.append(Data("\r\n".utf8)) body.append(Data("--\(boundary)--\r\n".utf8)) let url = URL(string: BASE_URL + "scripts/ajaxEntryPoint.php")! var request = URLRequest(url: url) request.httpMethod = "POST" request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type") request.httpBody = body let configuration = URLSessionConfiguration.default let session = URLSession(configuration: configuration, delegate: self, delegateQueue: OperationQueue.main) let task = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) in guard let _:Data = data else { return } let json:Any? do { json = try JSONSerialization.jsonObject(with: data!, options: []) } catch { return } guard let server_response = json as? NSDictionary else { return } print(server_response) }) task.resume() } Error shows up on this line: let fileData: Data = try! Data(contentsOf: url) Thanks in Advance Nabeel

Hi, I am new to macOS development. I am trying to develop macOS FileProvider extension, and everything was fine until I updated my macOS from 11 to 12.2. After updating OS, FileProvider extension won't being loaded by NSFileProviderManager.add(domain) and its completion handler returns error - NSFileProviderDomain.Error.providerNotFound @IBAction func tapAddDomainButton(_ sender: Any) { NSFileProviderManager.add(domain) { error in print("Add domain error: \(error)") // <- Error: Optional(Error Domain=NSFileProviderErrorDomain Code=-2001 "The application cannot be used right now." UserInfo={NSLocalizedDescription=The application cannot be used right now.}) } } I've made a new boilerplate project with default macOS > App + 'File Provider Extension' in Xcode, and still got same error. Same code works on macOS 11.6.1 Weird thing is that apple sample code won't return error and still works in macOS 12.2. I can't find any difference between my code and apple sample. Apple Sample Code I uploaded my test project here. Please help Thanks in advance.

After I receive an apns request. func enumerateItems(for observer: NSFileProviderEnumerationObserver, startingAt page: NSFileProviderPage) will be called. And I start fetch new items from my server. If new items have been deleted something that old items which already showed to the user contains. These have been deleted items will not disappear on the screen. func enumerateItems(for observer: NSFileProviderEnumerationObserver, startingAt page: NSFileProviderPage) {         task = Task {             do {                 let flat = MediaItemReference.flat(enumeratedItemIdentifier == .rootContainer ? root : enumeratedItemIdentifier.rawValue)                 guard let uuid = UUID(uuidString: flat.identifier) else {                     observer.finishEnumeratingWithError(FileProviderError.other)                     return                 }                 let fileContents = try await WebApi.getSubForFileProvider(uuid)                 let refs = fileContents.map { fileContent -> MediaItemReference in                     InfoPool.shared.set(fileContent.uuid.uuidString, value: fileContent)                     return MediaItemReference(                         identifier: fileContent.uuid.uuidString,                         isDirectory: fileContent.isDictionary,                         filename: fileContent.name,                         father: uuid.uuidString)                 }                 let items = refs.map(FileProviderItem.init(reference:))                 observer.didEnumerate(items)                 observer.finishEnumerating(upTo: nil)             } catch {                 print("=>", error.localizedDescription)                 observer.finishEnumeratingWithError(error)             }         }     }