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The product distribution file could not be verified. It may be damaged or was not signed.

"We could not complete your update.


The product distribution file could not be verified. It may be damaged or was not signed.

"


I have encountered this problem during update on App Store, (updating iMovie, Xcode...etc)

It prompts when I was clicking "update". It didn't help even restarted it on safe-mode and with NVRAM cleared.


Could anyone tell me what to do? Thanks


Device : MacBook Air

OSX ver : 10.11.4

Posted on May 11, 2016 9:38 PM

Reply
4 replies

Dec 28, 2017 4:21 PM in response to Linc Davis

29.12.17 01:19:50App Store[263]*** Assertion failure in -[ISDistributionManager verifyDistributionAtURL:allowsDevSign:isNoticeboardFile:error:distributionContr oller:], /SourceCache/Pisa/Pisa-60.10/ISDistributionManager.m:146


Hey, i get this in console, no idea what it means. Have tried everything, reinstalling the operating system 10.6.8, starting in safe mode...

May 12, 2016 9:47 AM in response to RingoZ32

Please launch the Console application in any one of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad and start typing the name.

The title of the Console window should be All Messages. If it isn't, select

SYSTEM LOG QUERIES ▹ All Messages

from the log list on the left. If you don't see that list, select

View ▹ Show Log List

from the menu bar at the top of the screen.

Click the Clear Display icon in the toolbar. Then take an action that isn't working the way you expect. Select any lines that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.

The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.

Please don't indiscriminately dump thousands of lines from the log into this discussion.

Please don't post screenshots of log messages—post the text.

Some private information, such as your name or email address, may appear in the log. Anonymize before posting.

When you post the log extract, you might see an error message on the web page: "You have included content in your post that is not permitted," or "The message contains invalid characters." That's a bug in the forum software. Please post the text on Pastebin, then post a link here to the page you created.

If you have an account on Pastebin, please don't select Private from the Paste Exposure menu on the page, because then no one but you will be able to see it.

The product distribution file could not be verified. It may be damaged or was not signed.

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