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pninan Author

Level 1

0 points

Failed to verify preflight file ... App Store broken after Mavericks upgrade

I upgraded my OS X to Mavericks and the install was very smooth. Since then, however, I cannot update any apps or purchase new ones in the App Store. I receive a message saying "Failed to verify the preflight file. It is not signed by Apple. The application will be available from the Purchases page." Unfortunately the same thing happens when I use the Purchases page as well.

Am I doing something wrong or did something break with App Store after my installation?

MacBook Pro (Retina, 13-inch, Late 2012), OS X Mavericks (10.9)

Posted on Oct 23, 2013 3:12 AM

Top-ranking reply

p1991atric

Level 1

10 points

Posted on Oct 24, 2013 1:19 AM

What worked for me was changing the certificate preferences in Keychain Access (open Keychain Access app and then go to preferences).

I just changed both of the first two options to 'Best Attempt', they were originaly at 'Require if certificate indicates'.

Hope this Helps

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18 replies

Pall

Level 1

8 points

Sep 27, 2015 4:27 AM in response to p1991atric

I have this problem also. It just started to happen recently. Security is compromised when you set Certificate verification is set to best effort.

Apple should really look into to this issue because it compromises all of the certificate/PKI built into the OS X

Nov 3, 2015 3:32 AM in response to p1991atric

To Pall: Thanks - I was going insane. They need to fix the Certificate problem. Always getting errors for things we shouldn't - I've changed those settings in Key/Certificate a bunch of times - never had any idea it would cause download and upgrade problems too! It sure would be nice if we actually had root certificates and the ones above (under?) them that worked without the constant errors - what's the point? Apple doesn't make enough? The least they could do is upgrade the root ones that are good and have a message show up when we can accept without a problem. I have never liked Keychain and like it even less now. The Certificate part obviously doesn't make us any safer - just causes stuff like this. Once again, thanks! You should take credit for this so other's don't - sharing is one thing, and you were very nice about it - but lots of folks are really into the points.

Nov 3, 2015 3:35 AM in response to malenze

To malenze and Pall et al.: I couldn't agree more. The whole Certificate thing is one big cluster you know what. And keys that just magically appear that are exactly the same as other ones or you have no idea what those weird apps are they are allowing in. Deleting them doesn't bother my work - but they reappear in triplicate.

Failed to verify preflight file ... App Store broken after Mavericks upgrade