When my macOS app try to deactivate CameraExtension, my app's didFailWithError is called with this error. Error Domain=OSSystemExtensionErrorDomain Code=4 "(null)" I cannot search for error code=4 with that domain. MyApp calls OSSystemExtensionManager.shared.submitRequest with OSSystemExtensionRequest.deactivationRequest I did implement these tasks. BundleID, MyApp: com.myapp, BundleID, CameraExtension: com.myapp.camera Added entitlement and App Groups for app and extension MyApp has SystemExtension capability on Xcode and provision MyApp is installed on /Applications/MyAppGroup/MyApp.app MyApp is executed by Finder macOS is Sonoma 14.2.1 (23C71) on M1 MacBook

If I do these tasks on random order, CMIO CameraExtension go into unstable condition. Copy MyApp.app under /Applications or /Applications/MyAppGroup/ Install by MyApp sending OSSystemExtensionRequest.activationRequest Check install condition by command : "systemextensionsctl list" uninstall by MyApp sending OSSystemExtensionRequest.deactivationRequest Remove /Applications/MyAppGroup/ by command line and Finder Remove /Applications/MyApp.app by command line and Finder Kill MyApp.app during activationRequest. Once my CMIO CameraExtension go into unstable condition, it is impossible to remove on normal way. "systemextensionsctl list" shows my extension is activated. Remove by API failed with code=4. Removing file of MyApp.app does not remove CameraExtension Only way to remove CameraExtension is "Boot macOS as recovery mode", disable SIP, "systemextensionsctl uninstall" Audio HAL extension is file based and ATOMIC. I can check file existence by "ls" command and remove by "rm -rf" command. I never met unstable condition.

I have old ScreenCaptureKit sample downloaded on Oct 2022. That sample worked on Oct 2022. But it does not work on Apr 2024 on Sonoma 14.4.1 M1 MacBook. It only shows black screen. I also download updated ScreenCaptureKit sample and test it. It works on Sonoma 14.4.1 M1 MacBook. I noticed latest sample have SCContentSharingPicker and other changes. I have my screen capture application based on old ScreenCaptureKit sample. My app only shows black screen. Do I have to add SCContentSharingPicker and SCContentSharingPickerObserver on my application for capturing screen on Sonoma? Old way of screen capture without SCContentSharingPicker is not supported anymore on Sonoma?

I am working on ScreenCaptureKit sample with SCContentSharingPickerObserver. My Target is SwiftUI based and calling Objective-C class method. I added [MyTarget]-Bridging.h and [MyTarget]-Swift.h I got compile error of unknown class name SCContentSharingPickerObserver in [MyTarget]-Swift.h. But I do not know how to fix this error since [MyTarget]-Swift.h is Xcode generated file. I set macOS target is 14.0, swift language ver is 5 Anyone know how to fix this error or waiting for Xcode update?

I made CameraExtension and installed by OSSystemExtensionRequest. I got success callback. I did uninstall old version of my CameraExtension and install new version of my CameraExtension. "systemextensionsctl list" command shows "[activated enabled]" on my new version. But no daemon process with my CameraExtension is not running. I need to reboot OS to start the daemon process. This issue is new at macOS Sonoma 14.5. I did not see this issue on 14.4.x