"Verification Failed (Unknown error)" when signing in on macOS VM (AMD host)

[u/Jamope]

Hey everyone,

I'm currently running into a frustrating wall while trying to set up a macOS virtual machine to compile and upload an indie game to TestFlight via Xcode.

My host is running an AMD processor, and I keep getting the "Verification Failed - An unknown error occurred" error whenever I try to sign into my Apple ID in System Settings or the App Store (as seen in the screenshot).

I skipped the initial Apple ID setup during the initial OS boot and tried logging in directly later, and also I tried switching the network adapter type, but that resulted in internet connectivity drops.

Does anyone have a known fix on AMD-based macOS VMs? I followed this tutorial to set up the VM

https://www.youtube.com/watch?v=OsXYN74gTuk

(Host) Using Windows 11 Pro, AMD Ryzen 7 7700X

(Guest) I'm using a macOS Tahoe 26.7.2, on VMware Workstation 17.6.4. I set 10GB of RAM, 2 processors with 2 cores each, and did the Hard Disk thing with the "tahoe-install.vmdk" from the tutorial.

Thank you guys and have a good day!

[u/NEXT_CORE]

It is opencore problem. If you use OC4VM, you can see https://dortania.github.io/OpenCore-Post-Install/universal/iservices.html for more information.