Whenever I'm clicking the Update button in the Mac App Store, I keep getting this error, saying that I have updates available for other accounts (I've only used 1 account to buy apps in the mac app store), and that I have to sign in to (null) to update applications for that account.
I don't understand what that means, has anyone had a problem like this before?
I don't understand what that means, has anyone had a problem like this before?
