Upgrading to Mavericks "Unknown Error (4)"

jahall05

macrumors 6502
Original poster
Jul 30, 2013
255
21
Hey guys,

I have a mid-2012 cMBP 13. I go to the app store to upgrade to Mavericks and it says there is "Unknown Error" and then "The App Store could not process your request. (4)"

Is this just the servers being bogged down by everyone wanting to update or is there something I am doing wrong?

Thanks!
 

MacGurl111

macrumors 65816
Feb 4, 2010
1,281
287
Seattle
Hey guys,

I have a mid-2012 cMBP 13. I go to the app store to upgrade to Mavericks and it says there is "Unknown Error" and then "The App Store could not process your request. (4)"

Is this just the servers being bogged down by everyone wanting to update or is there something I am doing wrong?

Thanks!
Sounds like the server might be.. Keep trying.
 

jahall05

macrumors 6502
Original poster
Jul 30, 2013
255
21
Resolved (Fix Possibly)

Try this…go to Purchases (top bar on app store application), and it will probably prompt you to sign in. Sign in, and then go back to update and try it again. This solved the issues for me!
 

Tremaet

macrumors newbie
Oct 22, 2013
1
0
jahall05, thanks so much for the tip. That did the trick for me (going from Snow Leopard to Mavericks).
 

joviaust

macrumors newbie
Apr 1, 2017
1
0
Sounds like the server might be.. Keep trying.
[doublepost=1491096183][/doublepost]I just had the same error message while upgrading fromYosemite to Sierra and went to purchases first, Signed in and then everything was there for me to upgrade my system.
 
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