I'm getting "Authentication timeout. Please retart Xcode (-22421)" error when I tried to upload to app store. I have restarted Xcode and rebuilt the archive twice. I have validated the archive.
I have the same problem
if i use Application Loader the answer is "please sign in with an app-specific password.You can create ont at appleid.apple.com"
My account is OK on appleid.apple.com
Any solution ?
This action could not be completed. Try again. (-22421)