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Last Updated: May 18, 2021
Explain the Problem you are Facing with App Store Sign In Unknown Error
I'm having trouble signing in to the Mac App Store: 'unable to log in. An unkown error occured' (in dutch). I've tried these things: * moved the preferences files ...
what finally worked for me was heading to the top toolbar, clicking "Store" and then clicking "Sign Out". Then I successfully signed back in!! More ...
But you can still view these hidden apps with a bit of digging. Open the App Store, and click Store > View My Account. Sign in to view your account information.
iTunes Error 50 is caused by your PC being unable to connect to the iTunes download store. This problem is either going to ... your purchased music. An unknown error occurred (-50) ... To do this, you need to log into your Firewall program, and then make sure that it will allow these domains & programs: itunes.apple.com ...
... the mac itself works just not the ethernet connection so, theirs no sign in without that error for me, works fine on my laptop , so yes I could transfer the apps from ...