I can't update Genius - Error (4002)

Same here. Hopefully it's just that their servers are overloaded with everybody updating at the same time.

Same here, but strangely enough my other Mac (mini) updated without a glitch...

I'm getting the same error on all my Macs. Leaving it overnight before trying again makes no difference.

try this out:

Close iTunes
library-> Cookies
Move that Folder to another Destination and Start iTunes again
and update genius

That actually did the trick! Thanks a lot! Didn't know that iTunes relied on cookies, but then again it makes perfect sense! Thanks!

Didn't work for me.

That didn't work for me either....this iTunes is a piece of crap.

Moving the cookies worked for me, thanks.

also at me moving the cookies helped!!

Thank you "bielefeldseineperle"

It does seem like it's related to cookies. But you don't have to delete all the cookies - bad idea. Instead, you can only delete cookies for apple.com domain:

1) Launch Safari, go to its Preferences, go to "Security" tab and click "Show cookies" button.
2) enter "apple.com" in the search field.
3) Select all the apple.com entries in the list and click "Remove" button.

Voila!

i don't get an error message or anything... it just doesn't show the genius mix icon!!!! i have installed it for like the seventh or eighth time... I've removed the cookies folder from the library and tried store>update genius. It just says, now your genius is switched on and select any song to make a genius playlist. Nothing seems to work... Some one help me!!!!!

@Farlander
good point

Message was edited by: bielefeldseineperle

I'm having the same problem still and I have tried both of the suggestions on this thread.

stryfe137 wrote:
I'm having the same problem still and I have tried both of the suggestions on this thread.

If you're having issues updating Genius - turn it off first, then do what I suggested above (removing cookies for apple.com domain), then turn it back on.

If you're having issues turning it on - that must be a different issue, then 😟

I'm had the same problem even after I tried both of the suggestions above in this thread. But with your suggestion to turn genius of and then deleate cockies it works! Thank's a lot.