App Store High Sierra Not Working

I ll explain the reason why later.

App store high sierra not working. Find macos high sierra and click install. This is regarding high sierra installs which were downloaded after november 12 2020 and app store apps not launching due to a codesigning error along with some other app store weirdness. 3rd party apps are running fine with dmg setups.

Safari chrome the app store microsoft outlook final cut pro and a bunch of other programs all stopped working or started giving me compatibility errors. Please let me know if the issue is fixed for others or its an issue with apple servers. Well apple wasn t lying it s just a bit tricky to download high sierra.

There s some progress in figuring out what s causing this though thanks to apple s typical opacity it s all speculative as well as some workarounds. I have reinstalled 2 3 times using new official hs setup. If you have a copy of macos server in your applications folder that may be the root of the problem.

Massive amounts of problems updating a 2013 mac pro to high sierra 10 13 4. Launch the app store app and go to the purchases tab. Then app store and imessage should work click to expand.

The app store was working fine in high sierra. If you are a heavy adobe user that spells bad news for you. The reason for that is apple slowly shifting from 32bit apps to 64bit apps.

Everything is working great except i cannot run any apps installed from mac app store. Thanks for the reply. If that doesn t work try deleting the downloaded installer it s in your applications folder using cleanmymac and download it again.