macOS catalina application is damaged, and can't be used to install macos

how to complete the upgrade if massage "macOS catalina application is damaged, and can't be used to install Macos"?

Mac mini 2018 or later

Posted on Nov 29, 2019 10:59 PM

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This copy of the Install macOS Catalina application is damaged, and can‘t be used to install macOS. I got this note trying to upgrade, no apparent way to reload the upgrade. Suggestions? This copy of the Install macOS Catalina application is damaged, and can‘t be used to install macOS.
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1 reply

mulberry58

Level 6

10,436 points

Nov 30, 2019 12:11 AM in response to forest0309

Delete the file from applications, go to the appstore and download it again

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macOS catalina application is damaged, and can't be used to install macos

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