Michal Marek A rather annoying problem that has been felt by users all over the world has hit the Mac App Store today. A software bug caused apps downloaded from the Apple Store to report corruption to users, requiring them to be deleted and reinstalled.
However, the problem is easily solvable. Deleting and reinstalling apps will indeed fix the problem, but thankfully nothing like that is necessary. Your apps are actually fine and you just need to restart your computer. If you don't even want to do that, you can also enter a command in the Terminal in the following form: $ killall -KILL storeaccountd
Just verified that you don't need to reboot to work around the Mac App Store certificate problem. Instead: $ killall -KILL storeaccountd
- Craig Hockenberry (@chockenberry) 12. November 2015
The bug is due to the fact that the security certificates of the applications have expired today. Therefore, the system cannot evaluate them as safe and therefore does not run them. Unfortunately, the error message is so generic and threatening that it causes far more concern than it should. But if you eliminate the problem once, it should not appear again.
It's not enough.
Agreement. Entropy stopped working for me. The only solution was a fresh install.
You are right, I also had the problem with one single app. But the Terminal command already helped.
Beauty, the 90s are back :-) Is something wrong? Restart:-D
This is how TextWrangler and MS Office 2011 stopped working for me. Restarting didn't help, I had to reinstall TW and completely delete MSO from the computer and perform a new installation...
Well, thanks for the reassurance, I already reinstalled once today ;-).
I have a similar problem. My paid purchases of Applications such as Osmos, Polda, etc. have disappeared. On my computer, they have a gray icon and suddenly I can't see them under Purchased in the Appstore. (Credit statements from several years ago are quite difficult to find).
If I put "show in App store" next to the gray icon, it offers me a new purchase...
Tomas