Hi, macOS Big Sur works for me perfectly until I upgraded iCloud to 2TB. While syncing, Finder crashes and cannot be reopened again. Open Finder will result in -1 error. Trying safe mode, closed WiFi (to prevent syncing) and the result is the same. Since I cannot access Finder, I can't redownload the beta (downloading to a folder will hung). What shall I do?

In WWDC standalone watch app talk, Apple mentioned that iPhone app is now optional.How do you submit a standalone watch app without the iPhone app?Have been asking in WatchKit forum and no answer for months. Thanks!

In an app ported to Mac Catalyst, the camera interface always turned out to be blank.I have checked: the capabilities includes "Camera", the privacy setting in info.plist is there (the iPad app shows the camera fine), and I even try to include front camera for UIImagePickerController. if UIImagePickerController.isSourceTypeAvailable(.camera) { let imagePicker = UIImagePickerController() imagePicker.sourceType = .camera imagePicker.delegate = self imagePicker.cameraDevice = .front // added for Mac self.present(imagePicker, animated:true, completion:nil) }The error I got is: "[Generic] Could not create video device input: Error Domain=AVFoundationErrorDomain Code=-11814"

After upgrading to macOS 10.13.4 and Xcode 9.3, my project now makes all my Provisioning Profile ineligible! They worked before upgrade.The error message for the distribution profile is:Provisioning profile "distribution profile name" doesn't include signing certificate "development certificate name"So I search through the forum,remove ALL items in keychain My Certificateredownload the distribution profile (double tap to install to Xcode)create new distribution profile (double tap to install to Xcode)recreate the Production certificate (double tap to install to Keychain)redownload the Development certificate (double tap to install to Keychain)So now my keychain has two production certificate (one is newly created), and one development certificate, and the error is still there. I found it weird that it asked for the development certificate in distribution profile? (I think this is the clue, but I don't know why)So now what should I do? Please help!