After upgrade to MacOS Mojave, I cannot login or connect to App Store.

I am using the latest MacBook Pro 2018 version. After upgrade to MacOS Mojave, I cannot sign out, login App Store or View my account. It always show "Cannot Connect to App Store". I also upgrade my iMac to MacOS Mojave, my iMac does not have this issue.


How can I fix this issue on my 2018 MacBook Pro?


Thank you

MacBook Pro TouchBar and Touch ID, iOS 12

Posted on Sep 24, 2018 7:50 PM

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Question marked as Top-ranking reply

Posted on Oct 2, 2018 7:04 AM

I found a solution that worked for me. It took me two steps, and all credit to BocaBoy in this thread: Re: Mojave installation fails: duplicate App Stores, can't sign in with Apple ID (Macbook Pro, Late 2016)


  1. Disable System Integrity Protection:
    1. Reboot the computer into restore mode (press command-R during startup)
    2. Select Terminal from the Utilities... menu
    3. Enter csrutil disable and press return
    4. Restart
  2. Back up and archive the folder in /Library/Security/Trust Settings before deleting them through Terminal. I'll copy BocaBoy's instructions here for you all:


OK, I just spoke with Apple engineering and they gave me a fix for this. It worked for me and it may work for you. You must know how to use Terminal and access hidden directories with Finder in the root of your drive.


First, make SURE that you've backed up the directory /Library/Security/Trust Settings. Copy it on your Desktop or Downloads directory, or wherever you'll be able to access it.


1. Again, back up the user certificate trust settings files described above. Then, remove them with the following commands, entering your administrator password when prompted:


cd "/Library/Security"

sudo ditto -ck "Trust Settings" TrustSettingsBackup.zip

cd "/Library/Security/Trust Settings"

sudo rm *.plist


2. Attempt to sign into the App Store.


This didn't work for me until I restarted at which point I was able to log in and see all of my accumulated updates. If you're not comfortable working at the system level, DON'T do this. If you are, this may fix your problem. It did for me.


Once you're sure that you've got the App Store working, you can delete the TrustSettingsBackup.zip file as well as the backup of the Trust Settings directory.

3. Reenable System Integrity Protection by repeating step 1 but using the command csrutil enable.


After I modified the Trust Settings directory, I was able to reboot and connect to the App Store and Books Store.


Good luck, everyone!

379 replies

Oct 31, 2018 11:22 AM in response to parrori1

This is what I posted earlier to show why yo need to see the tip top of the screen.:


"Click on the Apple logo, then click on the app store.


Lok at top of page, where it says "App Store", "Edit", "Store" "Window" and"Help" all in a row.


Click on STORE buttonand you will see a list of things:. Discover, search, work. Play. But look all the way down the STORE open list and the next to last line says"View my account"


Click on view my account and then you will see apps."

Sep 26, 2018 6:49 AM in response to brianyen0

I am also having the same issue after upgrading to Mojave yesterday. App store does not allow my account to be accessed. I'm not able to sign out. iTunes account access is working fine and so are other internet account set ups like iCloud and gmail.


Other unrelated issues with the Mojave upgrade:


1) System fan randomly gets loud

2) System sometimes will not wake out of sleep mode so I have to do a hard shutdown and power up using the power button.

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After upgrade to MacOS Mojave, I cannot login or connect to App Store.

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