Cannot login to iTunes, App Store or iCloud on my MacBook Pro

[MacManX]

Hi all!

I have an annoying problem. A couple of days ago I happened to start an old version of VMWare Fusion on my MacBook Pro, running macOS Mojave 10.14.2. This corupted all file permissions on my computer. This has now been resolved, BUT I cannot login to iTunes, App Store or iCloud.

When I enter my email address and password, I get prompted with an error message saying "This action could not be completed. Please try again", no matter what I do.

I have tried:

1) Resetting my Apple-ID password
2) Running Disk Utility First Aid and other diagnostics - all of which says everything is OK on my system
3) Logging in using my Apple-ID on my other devices. No problems there. It works just fine on other computers, iPhones etc.
4) Updating to 10.14.4 (somehow I'm sometimes logged in after reboot to be able to do that).
5) Try to download a free app from App Store - that gives me an "Unknown Error" message.
6) Creating a new Apple ID and login using that account (which works) and then log out again.

I have not tried to make a clean install and then put all my files and accounts back again using Time Machine.
My main problem is that I do not have a recent backup from before the crash. The last backup is from November last year. Bad. I know...

I think this might be an error in the Keychain app - but what can I do to fix it?
Extensive Googling and searching MacRumors forums comes up empty.

Please help!

 

[MacManX]

Surely, someone must know how to fix this...?
I noticed that if I enter the correct password three times, I get prompted with an error message that I have entered the wrong password, and that I should reset it.
I am 100 % sure about the password being correct. It works just fine to login at Apple and on my other Apple computers/phones.

Where on the hard drive are files for App Store/iTunes etc that handle logins/accounts stored?

 

[katbel]

Good question: where are the files!?
I have a similar problem. Since Apple prompted me to reset my iCloud password few days ago,
I had to reset it on all my devices. Everything is working except my macbook pro that doesn't allow me to log in in System prefs into iCloud : no messages, no email, no FaceTime, anything related to iCloud is logged out
The wheel spins for ages and I don't get anywhere
I also have an iMac and there it's fine
I called Apple and I was suggested to change password again and sign out from all my devices, what I stupidly did
and that didn't bring me anywhere than having to sign back in for ages and result:
my macbook pro still doesn't like it.
I tried to reset PRAM and SMC because Im sure somewhere there is a crazy file that doesnt want to change

 

[MacManX]

I haven't called Apple, since I suspect that I will receive the same useless answer that you got.
Some obscure file somewhere in my system is corrupt (wrong permissions, I believe) - but where?

 

[katbel]

I haven't called Apple, since I suspect that I will receive the same useless answer that you got.
Some obscure file somewhere in my system is corrupt (wrong permissions, I believe) - but where?

Solved it: I disabled SIP(because probably the x-file is out of our reach ) and updated again using this time the Combo update 10.14.5 and enabled SIP again
https://support.apple.com/kb/DL2000?viewlocale=en_US&locale=en_US
and now it's accepting my password . I hope it will work for you too!

 

[MacManX]

Solved it: I disabled SIP(because probably the x-file is out of our reach ) and updated again using this time the Combo update 10.14.5 and enabled SIP again
https://support.apple.com/kb/DL2000?viewlocale=en_US&locale=en_US
and now it's accepting my password . I hope it will work for you too!

I think we tried that with the 10.14.4 update - without success - but I'm not entirely sure. I'll give it a try!
I called Apple. They asked me to reset the default keychain. No success...

 

[Nbd1790]

I've never heard of that specific issue (although I've had problems logging into my Apple ID even with the correct password before) but I'd highly recommend making a genius appointment if you have access to an Apple retail store nearby. Might be more effective to have a few people looking at your specific issue and hopefully one of them have seen it before.

 

[katbel]

I think we tried that with the 10.14.4 update - without success - but I'm not entirely sure. I'll give it a try!
I called Apple. They asked me to reset the default keychain. No success...

Probably you spoke with the same person I spoke too. I even spoke to a senior adviser : useless , nice but couldn't help. Than he called me back yesterday and told him what I did so he can help someone else...
I hope you had a backup and got back your keychain like I did. I duplicated mine on the desktop and then substituted to the default-not helping- one and got back all my logins.
The combo in general is different than just the update, it cleans all the broken files, at least it's what it did to my MBP
Good luck!